LW015C - Tyco Electronics - Product.Network

Data Sheet

August 19 98

LC/LW010- and LC/LW015-Series Power Modules:

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

The LC/LW010- and LC/LW015-Series Power Modules use

adv anced, surface-mou nt technolo gy and deliver hi gh-quality,

compact, dc-dc conversion at an economical price.

Options

■Remote on-off

■Choice of on/off configuration

■Short pin: 2.8 mm ± 0.25 mm (0.110 in. ± 0.010 in.)

■Synchronization (cannot be ordered on units with

remote on/off)

■Output voltage adjust: 90% to 110% of VO, nom

(single outputs only)

■Tight output voltage tolerance

Features

■Low profile: 10.2 mm x 25.4 mm x 50.8 mm

(0.4 in. x 1.0 in. x 2.0 in.) with standoffs

(9.6 mm (0.38 in.) with standoffs recessed)

■Wide input voltage range: 18 Vdc to 36 Vdc or

36 Vdc to 75 Vdc

■Output current limiting, unlimited duration

■Output overvoltage clamp

■Undervoltage lockout

■Input-to-output isolation: 1500 V

■Operating case temperature range: –40 °C to

+105 °C

■

* 1950 Recognized,

CSA

† 22.2 No. 950-95

Certifi ed, IEC950, and VDE 080 5 Lic ensed

■CE mark meets 73/23/EEC and 93/68/EEC

directives‡

■Within FCC and VDE Class A radiated limits

Applications

■Telecommunications

■Distributed power architectures

■Private branch exchange (PBX)

■Voice and data multipl exing

Description

The L Single- and Dual-Output-Series Power Modules are low-profile, dc-dc converters that operate over an

input voltage range of 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc and provide one or two precisely regulated out-

puts. The outputs are isolated from the input, allowing versatile polarity configurations and grounding connec-

tions. The modules have a maximum power rating of 10 W to 15 W and efficiencies of up to 84% for a 5 V

output and 82% for a 3.3 V output. Built-in filtering for both input and output minimizes the need for external fil-

tering.

is a registered trademark of Underwriters Laboratories, Inc.

†

CSA

is a registered trademark of Canadian Standards Association.

‡This product is intended f or integration into end-use equipment . All the required procedures f or CE marking of end-use equip ment should be f ollo wed. (The CE mark is placed on selected products.)

2Tyco Electronics Corp.

Data Sheet

August 1998

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

LC/LW010- and LC/LW 015- Series Power Modules:

Absolute Maximum Ratings

Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are abso-

lute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess

of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for extended

periods can adversely affect device reliability.

* Maximum case temperature varies based on power dissipation. See derating curves, Figures 43—45, for details.

Electrical Specifications

Fusing Considerations

CAUTION: This power module is not internally fused. An input line fuse must always be used.

This encapsulated power module can be used in a wide v ariety of applications, ranging from simple stand-alone

operation to an integrated part of a sophisticated power architecture. To preserve maximum flexibility, internal fus-

ing is not included; howe ver , to achiev e maximum safety and system protection, alwa ys use an input line fuse. The

safety agencies require a normal-blow, dc fuse with a maximum rating of 5 A (see Safety Considerations section).

Based on the information provided in this data sheet on inrush energy and maximum dc input current, the same

type of fuse with a lower rating can be used. Refer to the fuse manufacturer’s data for further information.

Parameter Device Symbol Min Typ Max Unit

Input Voltage:

Continuous

Transi ent (100 ms)

VI, trans

—

100

Vdc

Operating Case Temperature

(See Derating Curves, Figures 43—45.) All TC–40 —105* °C

Storage Temperature All Tstg –55 —125 °C

I/O Isolation All ———1500 Vdc

Table 1. Input Specifications

Parameter Device Symbol Min Typ Max Unit

Operating Input Voltag e LC

LW VI

VI18

36 24

48 36

75 Vdc

Vdc

Maximum Input Current

(VI = 0 to VI, m a x ; IO = I O, max; see Figures

1—4.)

LW II, max

II, max —

——

—1.6

800 A

Inrush Transient All I2t——0.2 A2s

Input Reflected-ripple Current

(5 Hz to 20 MHz; 12 µH source imped-

ance; TA = 25 °C; see Figure 33.)

All II—5—mAp-p

Input Ripple Rejection (100 Hz—120 Hz) All ——45 —dB

Tyco Electronics Corp. 3

Data Sheet

August 1998 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

LC/LW010- and LC/LW015-Series Power Modules:

Electrical Specifications (continued)

Table 2. Output Specifications

Parameter Device Code

or Su ffix Symbol Min Typ Max Unit

Output Voltage Set Point

(VI = VI, nom; IO = IO, max; TA = 25 °C) D

VO, set

VO1, set

VO2, set

VO1, set

VO2, set

VO1, set

VO2, set

1.92

—

3.17

4.85

11.52

14.40

4.75

–4.75

11.40

–11.40

14.25

–14.25

2.0

2.5

3.3

5.0

12.0

15.0

5.0

–5.0

12.0

–12.0

15.0

–15.0

2.08

—

3.43

5.20

12.48

15.60

5.25

–5.25

12.60

–12.60

15.75

–15.75

Vdc

Output Voltage

(Over all line, load, and temperature

conditions until end of life; see

Figures 35 and 37.)

VO, set

VO1, set

VO2, set

VO1, set

VO2, set

VO1, set

VO2, set

1.90

—

3.13

4.80

11.40

14.25

4.5

–4.5

10.80

–10.80

13.50

–13.50

—

2.5

—

2.10

—

3.47

5.25

12.60

15.75

5.5

–5.5

13.20

–13.20

16.50

–16.50

Vdc

Output Regu la tion

(See Figu re s 5—11):

Line (VI = VI, min to VI, max)

Load (IO = IO, min to IO, m ax)

Temperature

(TC=–40 °C to +85 °C)

A, F, D, G*

B, C

Lx010 A, F, D, G*

B, C

Lx015 A, F, D, G*

B, C

A, F, D, G*

B, C

—

0.01

—

0.1

—

0.1

0.5

0.1

0.2

100

2.0

%VO

Output Ripple and Noise

(Across 2 x 0.47 µF ceramic capaci-

tors; see Figures 34 and 36.):

RMS

Peak-to-peak (5 Hz to 20 MHz)

A, D, F, G*

AJ, B, C

BK, CL

A, D, F, G*

AJ, B, C

BK, CL

—

100

120

150

mVrms

mVp-p

External Load Capacitance A, F, D, G*

B, C —

——

—1000

200 µF

µF

* For a 2.5 V output, use the 2 V output module (D code) with an out put voltage trim pin (optional feature).

4Tyco Electronics Corp.

Data Sheet

August 1998

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

LC/LW010- and LC/LW 015- Series Power Modules:

Output Current

(At IO < IO, min, the modules may

exceed output ripple specifications,

but operation is guaranteed.)

Note: On the Lx01xF, the output

v oltage may exceed

specifications when

IO<I

O, min.

Lx015D

Lx015F

Lx015A

Lx015B

Lx015C

Lx010D, G*

Lx010F

Lx010A

Lx010B

Lx010C

Lx010AJ

Lx010BK

Lx010CL

IO1, IO2

0.35

0.25

0.15

0.12

0.10

0.2

0.15

0.1

0.08

0.06

0.1

0.06

0.05

—

3.0

1.25

1.0

2.0

2.42

2.0

0.83

0.67

1.0

0.42

0.33

Output Current-limit Inception

(VO = 90% VO, set; see Figures

12—14.)

Lx015D

Lx015F

Lx015A

Lx015B

Lx015C

Lx010D, G*

Lx010F

Lx010A

Lx010B

Lx010C

Lx010AJ

Lx010BK

Lx010CL

IO1, IO2

—

7.5

6.5

3.1

2.5

7.0

2.5

4.0

2.5

Output Short-circuit Current

(VO = 0 .25 V) Lx015D

Lx015F

Lx015A

Lx015B

Lx015C

Lx010D, G*

Lx010F

Lx010A

Lx010B

Lx010C

Lx010AJ

Lx010BK

Lx010CL

IO1, IO2

—

8.5

7.5

4.5

7.5

3.5

6.0

3.5

* Fo r a 2.5 V output, use the 2 V output module (D code) with an output voltage trim pin (optional feature).

Table 2. Output Specifications (continued )

Parameter Device Code

or Suffix Symbol Min Typ Max Unit

Electrical Specifications (continued)

Tyco Electronics Corp. 5

Data Sheet

August 1998 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

LC/LW010- and LC/LW015-Series Power Modules:

Efficiency

(VI = VI, nom; IO = IO, max; TA = 25 °C;

see Figure s 15—28, 35, and 37.)

LC015D

LC015F

LC015A

LC015B, C

LC010D, G*

LC010F

LC010A, B, C

LC010AJ, BK, CL

LW015D

LW015F

LW015A

LW015B, C

LW010D, G*

LW010F

LW010A, B, C

LW010AJ, BK, CL

—

Efficiency

(VI = VI, nom; IO = 2 A; TA = 25 °C;

see Figures 15, 18, 22, and 25.)

LC015F

LC015A

LW015F

LW015A

—

Switching Frequency All ——265 —kHz

Dynami c Res pon se

(for duals: IO1 or IO2 = IO, max;

∆IO/∆t = 1A/10 µs; VI = VI, nom;

TA = 25 °C; see Figures 29 and 30.):

Load Change from IO = 50% to 75%

of IO, max:

Peak Deviation

Settling Time

(VO < 10% of peak deviation)

Load Change from IO = 50% to 25%

of IO, max:

Peak Deviation

Settling Time

(VO < 10% of peak deviation)

All

—

0.8

—

%VO, set

* For a 2.5 V output, use the 2 V output module (D code) with an out put voltage trim pin (optional feature).

Table 3. Isolation Specifications

Parameter Min Typ Max Unit

Isolation Capacitance —600 —pF

Isolation Resistance 10 ——M¾

Table 2. Output Specifications (continued)

Parameter Device Code

or Su ffix Symbol Min Typ Max Unit

Electrical Specifications (continued)

6Tyco Electronics Corp.

Data Sheet

August 1998

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

LC/LW010- and LC/LW 015- Series Power Modules:

Electrical Specifications (continued)

Table 4. General Specifications

Parameter Min Typ Max Unit

Calculated MTBF (IO = 80% of IO, max; TC = 40 °C):

Lx010

Lx015 —

—7,800,000

5,400,000 —

—hours

hours

Weight ——28.3 (1.0) g (oz.)

Hand Soldering

(soldering iron 3 mm (0.125 in.) tip , 425 °C) —— 12 s

Table 5. Feature Specifications

Parameter Device Code

or Suffix Symbol Min Typ Max Unit

Remote On/Off Signal Interface (optional):

(VI = 0 V to VI, max; open collector or

equivalent compatible; signal referenced to

VI(–) terminal. See Figure 38 and Feature

Descriptions.):

Posi ti ve Logic— Device Code Suffix “4”:

Logic Low—Module Off

Logic High—Module On

Negative Logic— Device Code Suffix “1”:

Logic Low—Module On

Logic High—Module Off

Module Specifications:

On/Off Current—Logic Low

On/Off Voltage:

Logic Low

Logic High (Ion/off = 0)

Open Collector Switch Specifications:

Leakage Current During Logic High

(Von/off = 10 V)

Output Low Voltage During Logic Low

(Ion/off = 1 mA)

All

Ion/off

Von/off

Ion/off

Von/off

—

–0.7

—

1.0

1.2

µA

Turn-on Delay and Rise Times

(At 80% of IO, max; TA = 25 °C; see Figures 31

and 32.):

Case 1: On/Off Input Is Set for Unit On and

then Input Power Is Applied (delay from

point at which VI = VI, min until VO = 10% of

VO, nom).

Case 2: Input Power Is Applied for at Least

One Second, and then the On/Off Input Is

Set to Turn the Module On (delay from

point at which on/off input is toggled until

VO= 10% of VO, nom).

Output Voltage Rise Time

(time for VO to rise from 10% of VO, nom to

90% of VO, nom)

Output Voltage Overshoot

(at 80% of IO, max; TA = 2 5 °C)

All

Tdelay

Trise

—

0.2

—

Data Sheet

August 1998

Tyco Electronics Corp. 7

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

LC/LW010- and LC/LW015-Series Power Modules:

Electrical Specifications (continued)

Output Voltage Set-point Adjustment Range

(optional: single outputs only) A, B, F

—

110

100

125

%VO, nom

Output Overvoltage Clamp

(VO, clamp ma y be set higher on units with out-

put voltage set-point adjustment option.)

VO, clamp

VO1, clamp

VO2, clamp

VO1, clamp

VO2, clamp

VO1, clamp

VO2, clamp

2.60

3.7

5.6

13.2

16.5

5.6

–5.6

13.2

–13.2

16.5

–16.5

—

4.0

5.7

7.0

16.0

21.0

7.0

–7.0

18.0

–18.0

21.0

–21.0

Undervoltage Lockout LCxxx

LWxxx Vuvlo

Vuvlo 11

20 14

27 —

—V

Table 5. Feature Specifications (continued)

Parameter Device Code

or Suffix Symbol Min Typ Max Unit

Characteristic Curves

8-1785(C)

Figure 1. LC010 Input Current vs. Input Voltage at

IO= IO, max and TC = 25 °C

8-1786(C)

Figure 2. LC015 Input Current vs. Input Voltage at

IO = IO, max and TC = 25 °C

5 10 15 2520 30

0.0

0.6

INPUT V OLTAGE, VI (V)

0.4

0.3

0.5

0.8

400

0.7

0.2

0.1

0.9

INPUT CURRENT, II

(A)

0.4

0.0

0.8

1.2

1.4

0.2

0.6

1.0

5 10 15 3520 400 3025

INPUT V OLTAGE, VI (V)

INPUT CURRENT, II (A)

8Tyco Electronics Corp.

Data Sheet

August 1998

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

LC/LW010- and LC/LW 015- Series Power Modules:

Characteristics Curves (continued)

8-1787(C)

Figure 3. LW010 Input Current vs. Input Voltage at

IO = IO, max and TC = 25 °C

8-1788(C)

Figure 4. LW015 Input Current vs. Input Voltage at

IO = IO, max and TC = 25 °C

8-1789(C)

Figure 5. Lx010x/Lx015x Single-Output Load

Regulation, Normalized Output Voltage

vs. Normalized Output Current at

TC = 25 °C

8-1790(C)

Note: Output2 has characteristics similar to output1 when

IO1 = 0.5 A and IO2 varies .

Figure 6. Lx010AJ Typical Load Regulation of

Output1 with Fixed IO2 = 0.5 A at

TC = 25 °C

8-1791(C)

Note: Output2 has characteristics similar to output1 when

IO2 = 0.1 A and IO1 varies .

Figure 7. Lx010AJ Typical Cross Regulation,

VO1 vs. IO2 with Fixed IO1 = 0.1 A at

TC = 25 °C

10 20 30 5040 60

0.00

0.30

INPUT V OLT A GE, VI (V)

0.20

0.15

0.25

0.40

800

0.35

0.10

0.05

0.45

0.50

INPUT CURRENT, II (A)

0.2

0.0

0.4

0.6

0.7

0.1

0.3

0.5

10 20 30 7040 8006050

INPUT VOLTAGE, V

(V)

INPUT CURRENT, I

(A)

0.1 0.2 0.6 0.7 0.8 0.9

0.997

1.002

NORMALIZED OUTPUT CURRENT (IO/IO, max)

1.000

0.999

1.001

1.00.0

1.003

0.998

0.4 0.50.3

VI = LOW LINE

VI = HIGH LINE

VI = NOM LINE

NORMALIZED OUTPUT VOLTAGE (VO/VO, set )

0.1 0.2 0.3 0.4 0.5 0.6

4.90

5.05

OUTPUT CURRENT 1, I

(A)

5.00

5.10

1.0

0.0

4.95

0.7

5.15

0.8 0.9

= HIGH LINE

= LOW LINE

= NOM LINE

OUTPUT V OLTAGE 1, V

(V)

0.1 0.2 0.6 0.7 0.8 0.9

4.95

5.20

OUTPUT CURRENT 2, IO2 (A)

5.10

5.05

5.15

1.00.0

5.25

5.00

0.4 0.50.3

VI = LOW LINE

VI = NOM LINE

VI = HIGH LINE

OUTPUT V OLTA GE 1, VO1

(V)

Tyco Electronics Corp.

Data Sheet

August 1998 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

LC/LW010- and LC/LW015-Series Power Modules:

Characteristics Curves (continued)

8-1792(C)

Note: Output2 has characteristics similar to output1 when

IO2 = 1.0 A and IO1 varies.

Figure 8. Lx010AJ Typical Cross Regulation,

VO1 vs. IO2 with Fixed IO1 = 1.0 A at

TC = 25 °C

8-1793(C)

Note: Output2 has characteristics similar to output1 when

IO1 = (0.5 * IO, max) and IO2 vari es.

Figure 9. Lx010BK, CL Load Regulation of O utput1

with Fi xed IO2 = 0.5 * IO,max at TC = 25 °C,

Normalized V O1 vs. Normalized Current IO1

8-1794(C)

Note: Output2 has characteristics similar to output1 when

IO2 = I O, min and IO1 varies.

Figure 10. Lx010BK, CL Typical Cross Regulation,

Normalized VO1 vs. Normalized IO2 with

Fixed IO1 = IO,min at TC = 25 °C

8-1795(C)

Note: Output2 has characteristics similar to output1 when

IO2 = I O, max and IO1 varies.

Figure 11. Lx010BK, CL Typical Cross Regulation,

Normalized VO1 vs. Normalized IO2 with

Fixed IO1 = IO, max at TC = 25 °C

0.1 0.2 0.3 0.5 0.6 0.7

4.75

4.90

OUTPUT CURRENT 2, IO2 (A)

4.85

4.95

1.00.0

4.80

0.8 0.9

5.00

0.4

OUTPUT V OLTA GE 1, VO1 (V)

VI = HIGH LINE

VI = NOM LINE

VI = LOW LINE

0.15 0.30 0.45 0.75 0.90

0.990

1.013

NORMALIZED OUTPUT CURRENT (I

max

)

1.010

1.016

1.050.0

1.006

1.020

0.60

1.003

1.000

0.996

0.993 V

= HIGH LINE

= I

max

= I

min

= LOW LINE

= NOM LINE

NORMALIZED OUTPUT VOLTAGE 1 (V

set

)

1.020

1.003

0.996

1.010

1.016

1.023

1.000

1.007

1.013

0.15 0.45 0.60 0.75 0.90 1.050.0 0.30

NORMALIZED OUTPUT CURRENT 2 (IO2/IO2, max)

VI = NOM LINE

VI = LOW LINE

VI = HIGH LINE

IO = IO, min IO = IO, max

NORMALIZED

OUTPUT V OLTA GE 1 (VO1/VO1, set )

1.000

0.966

0.953

0.980

0.993

1.006

0.960

0.973

0.987

0.15 0.45 0.60 0.75 0.90 1.050.0 0.30

NORMALIZED OUTPUT CURRENT 2 (I

max

)

NORMALIZED

OUTPUT V OLTA GE 1 (V

set

)

= LOW LINE

= NOM LINE

= HIGH LINE

= I

max

= I

min

10 Tyco Electronics Corp.

Data Sheet

August 1998

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

LC/LW010- and LC/LW 015- Series Power Modules:

Characteristics Curves (continued)

8-1796(C)

Figure 12. Lx010x/Lx015x Single-Output

Normalized Output Current vs.

Normalized Output Voltage at

TC = 25 °C

8-1797(C)

Note: Output2 has characteristics similar to output1 when

output1 is set to IO, min.

Figure 13. Lx010xx Dual-Output Normalized Output

Current vs. Normal iz e d Output Voltag e

at TC = 25 °C with Other Output at IO, min

8-1798(C)

Note: Output2 has characteristics similar to output1 when

output1 is set to IO, max.

Figure 14. Lx010xx Dual-Output Normalized Output

Current vs. Normalized Output Voltage

at TC = 25 °C with Other Output at

IO = IO,max

8-1800(C)

Figure 15. LC015A Typical Efficiency vs. Output

Current at TC = 25 °C

0.25 0.50 0.75 1.00

0.0

0.8

OUTPUT CURRENT NORMALIZED TO IO, max (IO/IO, max)

0.6

1.0

2.00

0.00

0.4

1.25

1.2

1.50 1.75

0.2

NORMALIZED OUTPUT VOLTA GE (VO/VO, set)

VI = LOW LINE

VI = NOM LINE

VI = HIGH LINE

0.5 1.0 1.5 2.0 2.5 3.0

0.0

0.5

NORMALIZED OUTPUT CURRENT 1

WITH OUTPUT CURRENT 2

SET T O IO, min (IO1/IO1, max)

4.50.0 3.5 4.0

1.0

VI = NOM LINE

VI = LOW LINE

VI = HIGH LINE

NORMALIZED

OUTPUT V OLTAGE 1 (VO1/VO1, set )

0.0

1.0

0.5

0.5 1.0 1.5 3.52.0 4.00.0 3.02.5

NORMALIZED OUTPUT CURRENT 1

WITH OUTPUT CURRENT 2

SET T O IO, max (IO1/IO1, max)

VI = NOM LINE

VI = LOW LINE

VI = HIGH LINE

NORMALIZED OUTPUT VOLTA GE 1 (VO1/VO1, set )

0.5 1.0 1.5 2.0

OUTPUT CURRENT, IO (A)

0.0

2.5

3.0

EFFICIENCY, η (%)

VI = 27 V

VI = 20 V

VI = 18 V

VI = 36 V

Tyco Electronics Corp.

Data Sheet

August 1998 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

LC/LW010- and LC/LW015-Series Power Modules:

Characteristics Curves (continued)

8-1801(C)

Figure 16. LC015B, C Typical Efficiency vs.

Normalized Output Current at TC = 25 °C

8-2049(C)

Figure 17. LC010D and LC015D Typical Efficiency

vs. Output Current at TC = 25 °C

8-1802(C)

Figure 18. LC015F Typical Efficiency vs. Output

Current at TC = 25 °C

8-1803(C)

Figure 19. LC010A, B, C Typical Efficiency vs.

Normalized Output Current at TC = 25 °C

8-1804(C)

Figure 20. LC010F Typical Efficiency vs. Output

Current at TC = 25 °C

8-1805(C)

Figure 21. LC010AJ, BK, CL Typical Efficiency vs.

Normalized Output Current at TC = 25 °C

0.16 0.32 0.48 0.64

NORMALIZED OUTPUT CURRENT (I

max

)

0.0

0.80

0.96

EFFICIENCY, η (%)

= 36 V

= 27 V

= 18 V

0.5 1 21.5 2.5 30

OUTPUT CURRENT, IO (A)

EFFICIENCY, η (%)

VI = 36 V

VI = 27 V

VI = 18 V

0.5 1.0 1.5 2.0 2.5 3.0

0.0

OUTPUT CURRENT, IO(A)

EFFICIENCY, η (%)

VI = 36 V

VI = 27 V

VI = 18 V

0.1 0.2 0.4 0.5 0.6 0.7

NORMALIZED OUTPUT CURRENT (IO/IO, max)

1.00.0

0.8 0.9

0.3

EFFICIENCY, η (%)

VI = 36 V

VI = 27 V

VI = 18 V

0.5 1.0 1.5 2.0 2.50.0

OUTPUT CURRENT, IO(A)

EFFICIENCY, η (%)

VI = 36 V

VI = 27 V

VI = 18 V

0.23 0.35 0.47 0.710.59 0.83

NORMALIZED OUTPUT CURRENT,

IO1 = IO2 [(IO1 + IO2)/(IO1, max + IO2, max)]

0.95

0.10

EFFICIENCY, η

(%)

VI = 36 V

VI = 24 V

VI = 18 V

1212 Tyco Electronics Corp.

Data Sheet

August 1998

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

LC/LW010- and LC/LW 015- Series Power Modules:

Characteristics Curves (continued)

8-1864(C)

Figure 22. LW015A Typical Efficiency vs. Output

Current at TC = 25 °C

8-1863(C)

Figure 23. LW015B, C Typical Efficiency vs.

Normalized Output Current at TC = 25 °C

8-1862(C)

Figure 24. LW010D, 015D Typical Efficiency vs.

Output Current at TC = 25 °C

8-1861(C)

Figure 25. LW015F Typical Efficiency vs. Output

Current at TC = 25 °C

8-1860(C)

Figure 26. LW010A, B, C Typical Efficiency vs.

Normalized Output Current at TC = 25 °C

8-1859(C)

Figure 27. LW010F Typical Efficiency vs. Output

Current at TC = 25 °C

1.0 1.5 2.0 2.5

OUTPUT CURRENT, IO (A)

EFFICIENCY, η (%)

0.0 0.5 3.0

VI = 48 V

VI = 75 V

VI = 36 V

0.33 0.5 0.66 0.83

NORMALIZED OUTPUT CURRENT (IO/IO, max)

0.05 0.19 1.0

VI = 48 V

VI = 75 V

EFFICIENCY, η (%)

VI = 36 V

1.0 1.5 2.0 2.5

OUTPUT CURRENT, IO (A)

EFFICIENCY, η (%)

0.0 0.5 3.0

VI = 48 V

VI = 75 V

VI = 36 V

1.0 1.5 2.0 2.5

OUTPUT CURRENT, I

(A)

EFFICIENCY, η (%)

0.0 0.5 3.0

= 48 V

= 75 V

= 36 V

0.20 0.43 0.57 0.71

NORMALIZED OUTPUT CURRENT (IO/IO, max )

EFFICIENCY, η (%)

0.0 0.14 1.0

0.86

VI = 48 V

VI = 75 V

VI = 36 V

1.0 1.5 2.0 2.5

OUTPUT CURRENT, I

(A)

EFFICIENCY, η (%)

0.0 0.5

= 48 V

= 75 V

= 36 V

Tyco Electronics Corp. 13

Data Sheet

August 1998 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

LC/LW010- and LC/LW015-Series Power Modules:

Characteristics Curves (continued)

8-1858(C)

Figure 28. LW010AJ, BK, CL Typical Efficiency vs.

Normalized Output Current at TC = 25 °C

8-1857(C)

Figure 29. S ingle-Output T ypical Output Voltage for

Step Load Change from 50% to 75% of

IO= IO, max

8-1856(C)

Figure 30. S ingle-Output T ypical Output Voltage for

Step Load Change from 50% to 25% of

IO=IO,max

8-1806(C)

Figure 31. Typical Output Voltage Start-Up when

Input Voltage Is Applied; IO = 80% of

IO, max, VI = Nominal Line

8-1807(C).a

Figure 32. Typical Output Voltage Start-Up when

Signal Is applied to Remote On/Off;

IO = 80% of IO, max

0.2 0.3 0.9 1.0

NORMALIZED OUTPUT CURRENT ,

IO1 = IO2 [(IO1 + IO2)/(IO1, max + IO2, max)]

EFFICIENCY, η (%)

0 0.1

0.4 0.5 0.6 0.7 0.8

VI = 48 V

VI = 75 V

VI = 36 V

TIME, t (100 µs/div)

NORMALIZED

OUTPUT VOLTAGE (VO/VO, set)

1.0

0.99

0.75

0.50

LOAD CURRENT

(IO/IO, max)

1.01

TIME, t (100 µs/div)

NORMALIZED

OUTPUT VOLTAGE(V O/VO, set)

0.99

1.0

1.01

0.50

0.25

LOAD CURRENT

(IO/IO, max )

TIME, t (2 ms/div)

1.0

NORMALIZED OUTPUT VOLTAGE;

VO/VO, set SINGLE OUTPUTS,

VO1/VO1, set DUAL OUTPUTS

INPUT VOLTAGE

(VI/VI, nom )

TIME, t (1 ms/div)

1.0

0.0

4.0

2.0

NORMALIZED

OUTPUT VOLTAGE;

set

SINGLE OUTPUTS,

set

DUAL OUTPUTS

REMOTE ON/OFF,

ON/OFF

(V)

(2 V/div)

1414 Tyco Electronics Corp.

Data Sheet

August 1998

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

LC/LW010- and LC/LW 015- Series Power Modules:

Test Configurations

8-203(C)

Note: Input reflected-ripple current is measured with a simulated

source impedance of 12 µH. Capacitor Cs offsets possible

batter y impedanc e. Current is measured at the input of the

module.

Figure 33. Input Reflected-Ripple Test Setup

8-513(C).g

Note: Use two 0.47 µF ceramic capacitors. Scope measurement

should be made using a BNC socket. Position the load

between 50 mm and 75 mm (2 in. and 3 in.) from the module.

Figure 34. Peak-to-Peak Output Noise

Measurement Test Setup for Single

Outputs

8-204(C)

Note: All measurements are taken at the module terminals. When

socketing, place Kelvin connections at module term inals to

avoid measu rement errors due to socket contact resistance.

Figure 35. Output Voltage and Efficiency

Measurement Test Setup for Single

Outputs

8-808(C).d

Note: Use four 0.47 µF ceramic capacitors. Scope measurement

should be made using a BNC socket. Position the load

between 50 mm and 75 mm (2 in. and 3 in.) from the module.

Figure 36. Peak-to-Peak Output Noise

Measurement Test Setup for Dual

Outputs

8-863(C).a

Note: All measurements are taken at the module terminals. When

socketing, place Kelvin connections at module ter m inals to

avoid meas urement errors due to socket contact resistance.

Figure 37. Ou tp ut Voltag e and Effi ciency

Measurement Test Setup for Dual

Outputs

TO OSCILLOSCOPE

12 µH

CS 220 µF

IMPEDANCE < 0.1 Ω

@ 20 ˚C, 100 kHz

VI(+)

VI(-)

BATTERY 33 µF

CURRENT

PROBE

LTEST

(+)

(–)

0.47 µF RESISTIVE

LOAD

SCOPE

COPPER STRIP

0.47 µF

VI(+)

VI(-)

VO(+)

VO(-)

IIIO

SUPPLY

CONTACT RESISTANCE

CONTACT AND

DISTRIBUTION LOSSES

LOAD

ηVO(+) VO(–)–

[]

VI(+) VI(–)

–

[]

------------------------------------------------





100

VO1(+

)

VO2(-)

0.47 µF

SCOPE

COPPER STRIP

SCOPE

COM

RLOAD1

RLOAD2

0.47 µF

VI(+)

IIIO

SUPPLY

CONTACT

RESISTANCE

CONTACT AND

DISTRIBUTION LOSSES

LOAD

VI(-)

VO1

VO2

COM

LOAD

VOJ COM

–

[]

IOJ

J1=

∑

VI+

() VI–

()

–

[]

---------------------------------------------------x100

Tyco Electronics Corp. 15

Data Sheet

August 1998 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

LC/LW010- and LC/LW015-Series Power Modules:

Design Considerations

Input Source Impedance

The power module should be connected to a low

ac-impedance input source. Highly inductive source

impedances can affect the stability of the power mod-

ule. If the source inductance exceeds 4 µH, a 33 µF

electrolytic capacitor (ESR < 0.7 ¾ at 100 kHz)

mounted close to the power module helps ensure

stability of the unit.

Safety Considerations

For safety-agency approval of the system in which the

power module is used, the power module must be

installed in compliance with the spacing and separation

requirements of the end-use safety agency standard,

i.e.,

1950,

CSA

22.2 No. 950-95, EN60950, and

IEC950.

For the converter output to be considered meeting the

requirements of safety e xtra-low v oltage (SELV), one of

the following must be true of the dc input:

■All inputs are SELV and floating, with the output also

floating.

■All inputs are SELV and grounded, with the output

also grounded .

■Any non-SELV input must be provided with rein-

f orced insulation from any other hazardous v oltages,

including the ac mains, and must have a SELV reli-

ability test performed on it in combination with the

converters.

The power module has e xtr a-low v oltage (ELV) outputs

when all inputs are ELV.

The input to these units is to be provided with a maxi-

mum 5 A normal-blow fuse in the ungrounded lead.

Feature Descriptions

Output Overvoltage Clamp

The output overvoltage clamp consists of control cir-

cuitry, independent of the primary regulation loop, that

monitors the voltage on the output terminals. This con-

trol loop has a higher voltage set point than the primary

loop (see Feature Specifications table). In a f ault condi-

tion, the overvoltage clamp ensures that the output

voltage does not exceed VO, clamp , max. This provides a

redundant voltage-control that reduces the risk of

output overvoltage.

Current Limit

To provide protection in a fault (output overload) condi-

tion, the unit is equipped with internal current-limiting

circuitry and can endure current limiting for an unlim-

ited duration. At the point of current-limit inception, the

unit shifts from voltage control to current control. If the

output voltage is pulled very low during a severe fault,

the current-limit circuit can exhibit either foldba ck or

tailout characteristics (output-current decrease or

increase). The unit operates normally once the output

current is brought back into its specified range.

Remote On/Off (Optional)

Two remote on/off options are available. Positive logic,

device code suffix “4”, remote on/off turns the module

on during a logic-high v oltage on the remote ON/OFF

pin, and off during a logic low. Negative logic, device

code suffix “1”, remote on/off turns the module off dur-

ing a logic high and on during a logic low.

To turn the power module on and off, the user must

supply a switch to control the voltage between the

on/off terminal and the VI(–) termi nal (Von/off). The

switch may be an open collector or equivalent (see

Figure 38). A logic low is Von/off = –0.7 V to +1.2 V. The

maximum Ion/off during a logic low is 1 mA. The switch

should maintain a logic-low voltage while sinking 1 mA.

During a logic high, the maximum V on/off generated by

the power module is 10 V. The maximum allowable

leakage current of the switch at Von/off = 10 V is 50 µA.

The module has internal capacitance to reduce noise

at the ON/OFF pin. Additional capacitance is not gen-

erally needed and may degrade the start-up character-

istics of the module.

8-758(C).a

Figure 38. Remote On/Off Implementation

Ion/off

Von/off

REMOTE

ON/OFF

VI(+)

VI(-)

1616 Tyco Electronics Corp.

Data Sheet

August 1998

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

LC/LW010- and LC/LW 015- Series Power Modules:

Feature Descriptions (continued)

Output Voltag e Adjustment (Optional on

Single-Output Units)

Output voltage set-point adjustment allows the user to

increase or decrease the output voltage set point of a

module. This is accomplished by connecting an exter-

nal resistor between the TRIM pin and either the VO(+)

or VO(–) pins. With an external resistor between the

TRIM and VO(+) pi ns (Radj-down), the output v oltage set

point (VO, adj) decreases (see Figure 3 9). The following

equation determines the required external resistor

v alue to obtain an output voltage change from VO, nom to

VO, adj:

where Radj-down is the resistance value connected

between TRIM and VO(+), and G, H, and L are defined

in the following table.

8-715(C).e

Figure 39. Circuit Configuration to Decrease

Output Voltage

With an external resistor connected between the TRIM

and VO(–) pins (Radj-up), the output voltage set point

(VO, adj) increases (see Figure 40). The following equa-

tion determines the required external resistor value to

obtain an output voltage from VO, nom to VO, adj:

where Radj-up is the resistance value connected

between TRIM and VO (–), and the values of G, H, K,

and L are shown in the following table:

The combination of the output voltage adjustment

and the output voltage tolerance cannot exceed 110%

(125% for the D) of the nominal output voltage between

the VO(+) and VO(–) terminals.

8-715(C).d

Figure 40. Circuit Configuration to Increa se Output

Voltage

The L-Series power modules have a fixed current-limit

set point. Therefore, as the output voltage is adjusted

down, the available output power is reduced. In addi-

tion, the minimum output current is a function of the

output voltage. As the output voltage is adjusted down,

the minimum required output current can increase

(i.e., minimum power is constant).

Synchronization (Optional)

With external circuitry, the unit is capable of synchroni-

zation from an independent time base with a switching

rate of 256 kHz. Other frequencies may be available;

please consult the factory for application guidelines

and/or a description of the external circuit needed to

use this feature.

Radj-down VO adj,L

–()

VO nom,VO adj,

–()

--------------------------------------- H

–Ω

VI(+)

VI(–)

VO(+)

VO(-)

TRIM

Radj-down

RLOAD

Radj-up GL

VO adj,L

–()

–[]

-----------------------------------------H

–





Ω

GHKL

Lx010, 5A 5110 2050 2.5 2.5

Lx010, 5B 10,000 5110 9.5 2.5

Lx010, 5C 10,000 5110 NA 2.5

Lx010, 5D 5110 2050 0.76 1.23

Lx010, 5F 5110 2050 0.75 2.5

VI(+)

VI(-)

VO(+)

VO(-)

TRIM

Radj-up

RLOAD

Tyco Electronics Corp. 17

Data Sheet

August 1998 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

LC/LW010- and LC/LW015-Series Power Modules:

Thermal Considerations

The power module operates in a variety of thermal

environments; however, sufficient cooling should be

provided to help ensure reliable operation of the unit.

Heat-dissipating components inside the unit are ther-

mally coupled to the case. Heat is removed by conduc-

tion, convection, and radiation to the surrounding

environment. Proper cooling can be verified by mea-

suring the case temperature. The case temperature

(TC) should be measured at the position indicated in

Figures 41 and 42.

8-1363(C).b

Note: Dimensions are in millimeters and (inches). Pin locations are

for reference only.

Figure 41. LW010 and LC010 Case Temperature

Measurement Location

8-1363(C).c

Note: Dimensions are in millimeters and (inches). Pin locations are

for reference only.

Figure 42. LW015 and LC015 Case Temperature

Measurement Location

Note that the views in Figures 41 and 42 are of the sur-

face of the modules. The temperatures at these loca-

tions should not e xceed the maximum case

temperature indicated on the derating curve. The out-

put power of the module should not exceed the rated

power for the module as listed in the Ordering Informa-

tion table.

Heat Tran sfer Charac teristics

Increasing airflow over the module enhances the heat

transfer via convection. Figures 43 through 45 show the

maximum power that can be dissipated by the module

without exceeding the maximum case temperature ver-

sus local ambient temperature (TA) for natural convec-

tion through 3.0 ms–1 (600 ft./min.).

Systems in which these power modules are used typi-

cally generate natural convection airflow rates of

0.25 ms–1 (50 ft./min.) due to other heat dissipating

components in the system. Therefore, the natural con-

vection condition represents airflow rates of approxi-

mately 0.25 ms–1 (50 ft./min.). Use of Figure 43 is

shown in the following example.

Example

What is the minimum airflow necessary for an LW010A

operating at 48 V, an output current of 2.0 A, and a

maximum ambient temperature of 91 °C?

Solution:

Given: VI = 48 V, IO = 2.0 A (IO, max), TA = 91 °C

Determine PD (Figure 58): PD = 2.5 W

Determine airflow (Figure 43): v = 2.0 ms–1

(400 ft./min.)

8-1375(C).a

Figure 43. LW0 10/LC 0 10 Forced Conv ect ion Power

Derating; Either Orientation

dc-dc POWER MODULE

15.2

(0.6)

OUT

IN LW010/LC010

10.2

(0.4)

dc-dc POWER MODULE

5.1

(0.2)

OUT

IN LW015/LC015

5.1 (0.2)

UNITS POWER DISSIPATION, PD (W)

50 60 70 80 90 100 11040 45 55 65 75 85 95 105

3.5

1.5

0.5

2.5

MAX AMBIENT TEMPERATURE, TA (˚C)

MAXIMUM CASE TEMPERATURE

2.0 ms -1 (400 ft./min.)

3.0 ms -1 (600 ft./min.)

1.0 ms -1 (200 ft./min.)

NATURAL CONVECTION

1818 Tyco Electronics Corp.

Data Sheet

August 1998

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

LC/LW010- and LC/LW 015- Series Power Modules:

Thermal Considerations (continued )

8-1377(C).a

Figure 44. LC015 Forced Convection Power

Derating; Either Orientation

8-1376(C).a

Figure 45. LW015 Force d Convection Power

Derating; Either Orientation

8-1382(C)

Note: The power dissipation of this unit is shown at TC = TC, max

because the efficiency of this power module drops at high

temperatures.

Figure 46. LC015A Power Dissipation at Maximum

Case Temperature

8-1808(C)

Figure 47. LC015B, C T ypical P ower Dissipation vs.

Normalized Output Current at TC = 25 °C

UNITS POWER DISSIPATION, P

(W)

10 20 30 40 50 60 700 80 90 100 110 120

3.5

1.5

0.5

4.5

2.5

MAX AMBIENT TEMPERATURE, T

(˚C)

NATURAL CONVECTION

3.0 ms

-1

(600 ft./min.)

1.0 ms

-1

(200 ft./min.)

2.0 ms

-1

(400 ft./min.)

MAXIMUM CASE TEMPERATURE

UNITS POWER DISSIPATION, PD (W)

50 60 70 80 90 100

3.5

1.5

0.5

4.5

2.5

MAX AMBIENT TEMPERATURE, TA (˚C)

11040

MAXIMUM CASE TEMPERATURE

2.0 ms -1 (400 ft./min.)

3.0 ms -1 (600 ft./min.)

1.0 ms -1 (200 ft./min.)

NATURAL CONVECTION

3.5

2.5

2.0

1.5

0.0 0.5 1.0 1.5 2.0 2.5

0.0

4.0

OUTPUT CURRENT, IO (A)

0.5

3.0

1.0

POWER DISSIPATION, PD (W)

VI = 20 V

VI = 27 V

VI = 36 V

VI = 18 V

4.5

0.16 0.32 0.48 0.64 0.80

NORMALIZED OUTPUT CURRENT (I

max

)

0.00

0.96

= 36 V

= 27 V

= 18 V

POWER DISSIPATION, P

(W)

Tyco Electronics Corp. 19

Data Sheet

August 1998 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

LC/LW010- and LC/LW015-Series Power Modules:

Thermal Considerations (continued)

8-1809(C)

Figure 48. LC010D , 015D T ypical Po wer Dissipation

vs. Output Current at TC = 25 °C

8-1810(C)

Note: The power dissipation of this unit is shown at TC = TC, max

because the efficiency of this power module drops at high

temperatures.

Figure 49. LC015F Typical Power Dissipation vs.

Output Current at Maximum Case

Temperature

8-1811(C)

Figure 50. LC010A, B, C Typical Power Dissipation

vs. Normalized Output Current at

TC = 25 °C

8-1812(C)

Figure 51. LC010F Typical Power Dissipation vs.

Output Current at TC = 25 °C

8-1813(C)

Figure 52. LC010AJ, BK, CL Typical Power

Dissipation vs. Normalized Output

Current at TC = 25 °C

3.5

1.0

0.0

2.0

3.0

4.0

0.5

1.5

2.5

0.5 1.0 1.5 2.0 2.5 3.00.0

OUTPUT CURRENT, IO(A)

POWER DISSIPATION, P D

(W)

VI = 18 V

VI = 36 V

VI = 27 V

1.0

0.0

2.0

3.0

3.5

0.5

1.5

2.5

0.5 1.0 1.5 2.0 2.5 3.00.0

POWER DISSIPATION, P D (W)

VI = 36 V

VI = 27 V

VI = 18 V

OUTPUT CURRENT, IO(A)

3.5

2.5

1.0

0.1 0.2 0.6 0.7 0.8 0.9

0.0

NORMALIZED OUTPUT CURRENT (IO/IO, max)

1.5

2.0

0.5

4.0

1.00.0 0.4 0.50.3

3.0

VI = 36 V

VI = 27 V

POWER DISSIPATION, P D (W)

VI = 18 V

0.5 1.0 1.5 2.0 2.5

0.0

2.5

1.5

1.0

2.0

0.0

3.0

0.5

OUTPUT CURRENT, I

(A)

= 36 V

POWER DISSIPATION, P

(W)

= 27 V

= 18 V

0.2 0.6 0.7 0.8 0.9

0.0

2.5

NORMALIZED OUTPUT CURRENT ,

IO1 = IO2 [(IO1 + IO2)/(IO1, max + IO2, max)]

1.5

1.0

2.0

3.5

1.00.1

3.0

0.5

0.4 0.50.3

VI = 36 V

VI = 24 V

VI = 18 V

POWER DISSIPATION, P D (W)

2020 Tyco Electronics Corp.

Data Sheet

August 1998

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

LC/LW010- and LC/LW 015- Series Power Modules:

Thermal Considerations (continued)

8-1383(C)

Note: The power dissipation of this unit is shown at TC = TC, max

because the efficiency of this power module drops at high

temperatures.

Figure 53. LW015A Power Dissipation at Maximum

Case Temperature

8-1814(C)

Figure 54. L W015B, C T ypical P ower Dissipation vs.

Normalized Output Current at TC = 25 °C

8-1815(C)

Figure 55. LW010D, LW015D Typical Power

Dissipation vs. Output Current at

TC = 25 °C

8-2109(C)

Figure 56. LW010D9 Typical Power Dissipation vs.

Output Current at TC = 25 °C with Outpu t

Voltage Trimmed Up to 2.5 V

8-1385(C)

Note: The power dissipation of this unit is shown at TC = TC, max

because the efficiency of this power module drops at high

temperatures.

Figure 57. LW015F Power Dissipation at Maximum

Case Temperature

0.0 0.5 1.0 1.5 2.0 3.0

0.0

3.0

3.5

4.0

4.5

OUTPUT CURRENT, IO (A)

POWER DISSIPATION, PD (W)

2.5

2.0

0.5

2.5

VI = 48 V

VI = 60 V

VI = 75 V

1.0

1.5

VI = 36 V

0.19 0.33 0.50 0.830.66 1.00

0.0

3.0

NORMALIZED OUTPUT CURRENT (IO/IO, max)

2.0

1.5

2.5

4.0

0.05

3.5

1.0

0.5

4.5

5.0

POWER DISSIPATION, PD (W)

VI = 36 V

VI = 48 V

VI = 60 V

VI = 75 V

1.0

0.0

2.0

3.0

3.5

0.5

1.5

2.5

0.5 1.0 1.5 2.0 2.5 3.00.0

OUTPUT CURRENT, I

(A)

= 36 V

POWER DISSIPATION, P

(W)

= 48 V

= 60 V

= 75 V

0.4 0.6 0.8 1.0 1.2 1.4 2.00.2 1.6 1.8

0.0

0.5

2.1

1.7

1.5

1.9

2.5

2.3

1.3

1.1

0.9

0.7

OUTPUT CURRENT, I

(A)

POWER DISSIPATION, P

(W)

= 36 V

= 75 V

= 48 V

0.0 0.5 1.0 1.5 2.0 3.0

0.0

3.0

3.5

OUTPUT CURRENT, I

(A)

POWER DISSIPATION, P

(W)

2.5

2.0

0.5

2.5

= 75 V V

= 48 V

= 60 V

1.0

1.5

= 36 V

4.0

Tyco Electronics Corp. 21

Data Sheet

August 1998 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

LC/LW010- and LC/LW015-Series Power Modules:

Thermal Considerations (continued)

8-1380(C)

Figure 58. LW010A, B, C Typical Power Dissipation

vs. Normalized Output Current at

TC= 25 °C

8-1816(C)

Figure 59. LW010F Typical Power Dissipation vs.

Output Current at TC = 25 °C

8-1817(C)

Figure 60. LW010AJ, BK, CL Typical Power

Dissipation vs. Normalized Output

Current at TC = 25 °C

Module Derating

The derating curves in Figure s 4 3 thro ugh 45 were

determined by measurements obtained in an experi-

mental apparatus shown in Figure 61. Note that the

module and the printed-wiring board (PWB) that it is

mounted on are both vertically oriented. The passage

has a rectangular cross section.

8-1126(C).d

Note: Dimensions are in millimeters and (inches).

Figure 61. Experimental Test Setup

Layout Considerations

Copper paths must not be routed beneath the power

module standoffs.

0.1 0.2 0.3 0.4 0.5 0.6

0.0

2.5

NORMALIZED OUTPUT CURRENT (IO/IO, max)

1.5

1.0

0.5

2.0

POWER DISSIPATION, PD (W)

VI = 75 V

3.5

0.7 0.8 0.9 1.00.0

VI = 48 V

VI = 36 V

3.0

VI = 60 V

1.0

0.0

2.0

3.0

3.5

0.5

1.5

2.5

0.5 1.0 1.5 2.0 2.50.0

OUTPUT CURRENT, IO(A)

VI = 36 V

VI = 48 V

POWER DISSIPATION, P D (W)

VI = 60 V

VI = 75 V

0.2 0.4 0.6 0.8 1.0

0.0

2.5

1.5

1.0

2.0

0.0

3.0

0.5

NORMALIZED OUTPUT CURRENT ,

IO1 = IO2 [(IO1 + IO2)/(IO1, max + IO2, max)]

VI = 36 V

VI = 48 V

VI = 60 V

POWER DISSIPATION, P D

(W)

VI = 75 V

AIR VELOCITY

AND AMBIENT

TEMPERATURE

MEASURED

BELOW THE

MODULE AIRFLOW

13 (0.5)

FACING PWB

MODULE

76 (3.0)

PWB

22 Tyco Electronics Corp.

Data Sheet

August 1998

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

LC/LW010- and LC/LW 015- Series Power Modules:

Outline Diagram

Dimensions are in millimeters and (inches).

Tolerance: x.x ± 0.5 mm (0.020 in.); x.xx ± 0.38 mm (0.015 in.).

If slightly lower height is needed, the four standoffs can be dropped through holes on the user’s PWB. By dropping

the standoffs through the PWB, the module height will be decreased to 9.5 mm (0.375 in.) typical height.

8-1329(C).b

* An optional shor t pin dimension is 2.8 mm ± 0.25 mm (0.110 in. ± 0.010 in.).

Top View

Side View

Bottom Vie w

Pin Function Pin Function

I(–)4V

O(+) or VO1(+)

I(+) 5 COMMON (dual outputs) or

TRIM (optional on single outputs)

Pin is not present on single outputs unless

option is specified.

Pin is always present on dual outputs.

3 ON/OFF or SYNC (optional)

Pin is not present unless one of t hese

options is specified.

O(–) or VO2(–)

0.51

(0.020) 10.16 (0.400)

MAX

5.84 (0.230)*

MIN

0.63 (0.025) x 0.63 (0.025)

SQUARE PIN,

ALL PLACES

STANDOFF

DIAMETER 0.63 (0.025)

TYP, 4 PLACES

15.2

(0.60) 20.32 (0.800)

2.54

(0.100)

5.08

(0.200) 12.7

(0.500)

0.32 (0.0125)

TYP

7.62 (0.300)

24.77

(0.975)

10.16

(0.400) 27.9 (1.10)

9.91

(0.39)

7.62

(0.300)

25.4

(1.00)

50.8 (2.00)

OUTIN LC015A

DC-DC Power Module

IN:DC 18-36V, 1.1A OUT:DC 5V, 3A

MADE IN USA

Tyco Electronics Corp. 23

Data Sheet

August 1998 18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

LC/LW010- and LC/LW015-Series Power Modules:

Recommended Hole Pattern

Component-side footprint.

Dimensions are in millimeters and (inches).

8-1329(C).b

Ordering Information

Table 6. Device Codes

Input Voltage Output Voltage Output Power Device Code Comcode

18 V—36 V 5 V 15 W LC015A 107809550

18 V—36 V 12 V 15 W LC015B 107983140

18 V—36 V 15 V 15 W LC015C TBD

36 V—75 V 2 V 6 W LC015D TBD

18 V—36 V 3.3 V 10 W LC015F 107809543

18 V—36 V 5 V 10 W LC010A 107747925

18 V—36 V 12 V 10 W LC010B 107747933

18 V—36 V 15 V 10 W LC010C 107747941

18 V—36 V 2 V 4 W LC010D 107747958

18 V—36 V 3.3 V 8 W LC010F 107747966

18 V—36 V ±5 V 15 W LC010AJ 107987083

18 V—36 V ±12 V 15 W LC010BK 107809592

18 V—36 V ±15 V 15 W LC010CL TBD

36 V—75 V 5 V 15 W LW015A 107809527

36 V—75 V 12 V 15 W LW015B 107935413

36 V—75 V 15 V 15 W LW015C 107935421

36 V—75 V 2 V 6 W LW015D 107809501

36 V— 75 V 3.3 V 10 W LW015F 107809535

36 V—75 V 5 V 10 W LW010A 107747974

36 V—75 V 12 V 10 W LW010B 107747982

36 V—75 V 15 V 10 W LW010C 107747990

36 V—75 V 2 V 4 W LW010D 107748006

36 V—75 V 3.3 V 8 W LW010F 107748014

36 V—75 V ±5 V 10 W LW010AJ 107935405

36 V—75 V ±12 V 10 W LW010BK 107809568

36 V—75 V ±15 V 10 W LW010CL TBD

15.2

(0.60) 20.32 (0.800)

2.54

(0.100)

5.08

(0.200)

20.32

(0.800)

27.94

(1.10)

24.77

(0.975)

7.62

(0.300)

50.8 (2.00)

CASE OUTLINE

STANDOFF

25.4

(1.00)

9.91

(0.39)

7.62

(0.300)

10.16

(0.400)

Data Sheet

August 1998

18 Vdc to 36 Vdc or 36 Vdc to 75 Vdc Inputs, 10 W and 15 W

LC/LW010- and LC/LW 015- Series Power Modules:

Printed on

Recycled Paper

Tyco Electronics Power Systems, Inc.

3000 Skyline Drive, Mesquite, TX 75149, USA

+1-800-526-7819 FAX: + 1-888-315-5182

(Outs ide U.S.A.: +1-972-284-2626, FAX : +1-9 72 -2 84 -2900)

http://power.tycoelectronics.com

Tyco Electronics Corporation reserves the right to make changes to the product(s) or infor mation contained herein without notice. No liability is assumed as a result of their use or application.

No rights under any patent accompany the sale of any such product(s) or information.

Printed in U.S.A.

August 1998

DS98-040EPS (Replaces DS97-027EP S)

Ordering Information (continued)

Optional features may be ordered using the device code suffixes shown below. The feature suffixes are listed

numerically in descending order. Please contact your Lucent Technologies Account Manager or Application Engi-

neer for pricing and availability of options.

Table 7. Option Codes

Option Device Code Suffix

Output voltage adjustment 9

Short pin: 2.8 mm ± 0.25 mm

(0.110 in. ± 0.010 in.) 8

Short pin: 3.7 mm ± 0.25 mm

(0.145 in. ± 0.010 in.) 6

Positive logic remote on/off 4

Synchronization

(cannot be ordered on units

with remote on/off)

Negative logic remote on/off 1