HCPL-0314-500 - Avago Technologies

SHIELD

N/C

CATHODE

ANODE

N/C

N.C.

HCPL-3140/HCPL-0314

Agilent HCPL-3140/HCPL-0314

0.6 Amp Output Current IGBT

Gate Drive Optocoupler

Data Sheet

Features

• 0.6 A maximum peak output

current

• 0.4 A minimum peak output

current

• High speed response:

0.7 µs maximum propagation delay

over temperature range

• Ultra high CMR:

minimum 10 kV/µs at VCM = 1 kV

• Bootstrappable supply current:

maximum 3 mA

• Wide operating temperature

range: –40°C to 100°C

• Wide VCC operating range:

10 V to 30 V over temp. range

• Available in DIP8 and SO8

package

• Safety approvals: UL approval,

3750 Vrms for 1 minute. CSA

approval. IEC/EN/DIN EN 60747-5-2

approval VIORM = 630 Vpeak (HCPL-

3140)

Applications

•Isolated IGBT/Power MOSFET

gate drive

•AC and brushless DC motor drives

•Inverters for home appliances

•Industrial inverters

•Switch Mode Power Supplies

(SMPS)

Truth Table

LED VO

OFF LOW

ON HIGH

A 0.1 µF bypass capacitor must be connected between pins VCC and VEE.

CAUTION: It is advised that normal static precautions be taken in handling and assembly of this component to prevent damage

and/or degradation which may be induced by ESD.

Description

The HCPL-3140/HCPL-0314 family

of devices consists of a GaAsP LED

optically coupled to an integrated

circuit with a power output stage.

These optocouplers are ideally

suited for driving power IGBTs

and MOSFETs used in motor

control inverter applications. The

high operating voltage range of the

Functional Diagram

output stage provides the drive

voltages required by gate

controlled devices. The voltage

and current supplied by this

optocoupler makes it ideally

suited for directly driving small

or medium power IGBTs. For

IGBTs with higher ratings, the

HCPL-3150 (0.6 A) or

HCPL-3120 (2.5 A) optocouplers

can be used.

Ordering Information

Specify part number followed by option number (if desired).

Example:

HCPL-3140#XXXX

No option = Standard DIP package, 50 per tube.

300 = Gull Wing Surface Mount Option, 50 per tube.

500 = Tape and Reel Packaging Option.

060 = IEC/EN/DIN EN 60747-5-2, VIORM = 630 VPEAK.

XXXE = Lead Free Option.

HCPL-0314#XXXX

No option = SOIC-8 surface mount in tube, 100 per tube.

500 = Tape and Reel Packaging Option.

060 = IEC/EN/DIN EN 60747-5-2, VIORM = 566 VPEAK.

XXXE = Lead Free Option.

Package Outline Drawings

HCPL-3140 Standard DIP Package

Remarks: The notation “#” is used for existing products, while (new) products launched since 15th July

2001 and lead free option will use “-”

1.080 ± 0.320

(0.043 ± 0.013) 2.54 ± 0.25

(0.100 ± 0.010)

0.51 (0.020) MIN.

0.65 (0.025) MAX.

4.70 (0.185) MAX.

2.92 (0.115) MIN.

5° TYP. 0.254 + 0.076

- 0.051

(0.010+ 0.003)

- 0.002)

7.62 ± 0.25

(0.300 ± 0.010)

6.35 ± 0.25

(0.250 ± 0.010)

9.65 ± 0.25

(0.380 ± 0.010)

1.78 (0.070) MAX.

1.19 (0.047) MAX.

A XXXXZ

YYWW

DATE CODE

DIMENSIONS IN MILLIMETERS AND (INCHES).

5678

4321

OPTION CODE*

RECOGNITION

TYPE NUMBER

* MARKING CODE LETTER FOR OPTION NUMBERS

"V" = OPTION 060

OPTION NUMBERS 300 AND 500 NOT MARKED.

NOTE: FLOATING LEAD PROTRUSION IS 0.25 mm (10 mils) MAX.

3.56 ± 0.13

(0.140 ± 0.005)

HCPL-0314 Small Outline SO-8 Package

HCPL-3140 Gull Wing Surface Mount Option 300 Outline Drawing

XXX

YWW

8765

4321

5.994 ± 0.203

(0.236 ± 0.008)

3.937 ± 0.127

(0.155 ± 0.005)

0.406 ± 0.076

(0.016 ± 0.003) 1.270

(0.050)BSC

5.080 ± 0.127

(0.200 ± 0.005)

3.175 ± 0.127

(0.125 ± 0.005) 1.524

(0.060)

45° X 0.432

(0.017)

0.228 ± 0.025

(0.009 ± 0.001)

TYPE NUMBER

(LAST 3 DIGITS)

DATE CODE

0.305

(0.012)MIN.

TOTAL PACKAGE LENGTH (INCLUSIVE OF MOLD FLASH)

5.207 ± 0.254 (0.205 ± 0.010)

DIMENSIONS IN MILLIMETERS (INCHES).

LEAD COPLANARITY = 0.10 mm (0.004 INCHES) MAX.

NOTE: FLOATING LEAD PROTRUSION IS 0.15 mm (6 mils) MAX.

0.203 ± 0.102

(0.008 ± 0.004)

7°

PIN ONE

0 ~ 7°

7.49 (0.295)

1.9 (0.075)

0.64 (0.025)

LAND PATTERN RECOMMENDATION

0.635 ± 0.25

(0.025 ± 0.010) 12° NOM.

9.65 ± 0.25

(0.380 ± 0.010)

0.635 ± 0.130

(0.025 ± 0.005)

7.62 ± 0.25

(0.300 ± 0.010)

9.65 ± 0.25

(0.380 ± 0.010)

6.350 ± 0.25

(0.250 ± 0.010)

1.016 (0.040)

1.27 (0.050)

10.9 (0.430)

2.0 (0.080)

LAND PATTERN RECOMMENDATION

1.080 ± 0.320

(0.043 ± 0.013)

3.56 ± 0.13

(0.140 ± 0.005)

1.780

(0.070)

MAX.

1.19

(0.047)

MAX.

2.54

(0.100)

BSC

DIMENSIONS IN MILLIMETERS (INCHES).

LEAD COPLANARITY = 0.10 mm (0.004 INCHES).

NOTE: FLOATING LEAD PROTRUSION IS 0.25 mm (10 mils) MAX.

0.254 + 0.076

- 0.051

(0.010+ 0.003)

- 0.002)

Solder Reflow Temperature Profile

Regulatory Information

The HCPL-3140/HCPL-0314 have

been approved by the following

organizations:

IEC/EN/DIN EN 60747-5-2

Approved under:

IEC 60747-5-2:1997 + A1:2002

EN 60747-5-2:2001 + A1:2002

DIN EN 60747-5-2 (VDE 0884

Teil 2):2003-01

(Option 060 only)

Approval under UL 1577,

component recognition program

up to VISO = 2500 Vrms. File

E55361.

CSA

Approval under CSA Component

Acceptance Notice #5, File CA

88324.

IEC/EN/DIN EN 60747-5-2 Insulation Characteristics (HCPL-3140 Option 060)

Description Symbol Characteristic Unit

Installation classification per DIN VDE 0110/1.89, Table 1

for rated mains voltage ≤ 150 Vrms I - IV

for rated mains voltage ≤ 300 Vrms I - III

for rated mains voltage ≤ 600 Vrms I-II

Climatic Classification 55/100/21

Pollution Degree (DIN VDE 0110/1.89) 2

Maximum Working Insulation Voltage VIORM 630 Vpeak

Input to Output Test Voltage, Method b*

VIORM x 1.875=VPR, 100% Production Test with VPR 1181 Vpeak

tm=1 sec, Partial discharge < 5 pC

Input to Output Test Voltage, Method a*

VIORM x 1.5=V PR, Type and Sample Test, tm=60 sec, VPR 945 Vpeak

Partial discharge < 5 pC

Highest Allowable Overvoltage VIOTM 6000 Vpeak

(Transient Overvoltage tini = 10 sec)

Safety-limiting values - maximum values allowed in the

event of a failure.

Case Temperature TS175 °C

Input Current** IS,INPUT 230 mA

Output Power** PS, OUTPUT 600 mW

Insulation Resistance at TS, VIO = 500 V RS>109Ω

* Refer to the optocoupler section of the Isolation and Control Components Designer’s Catalog, under Product Safety Regulations section IEC/EN/

DIN EN 60747-5-2 for a detailed description of Method a and Method b partial discharge test profiles.

** Refer to the following figure for dependence of PS and IS on ambient temperature.

TIME (SECONDS)

TEMPERATURE (°C)

200

100

50 150100 200 250

300

SEC.

50 SEC.

SEC.

160°C

140°C

150°C

PEAK

TEMP.

245°C

PEAK

TEMP.

240°CPEAK

TEMP.

230°C

SOLDERING

TIME

200°C

PREHEATING TIME

150°C, 90 + 30 SEC.

2.5°C ± 0.5°C/SEC.

3°C + 1°C/–0.5°C

TIGHT

TYPICAL

LOOSE

ROOM

TEMPERATURE

PREHEATING RATE 3°C + 1°C/–0.5°C/SEC.

REFLOW HEATING RATE 2.5°C ± 0.5°C/SEC.

Recommended Pb-Free IR Profile

217 °C

RAMP-DOWN

6 °C/SEC. MAX.

RAMP-UP

3 °C/SEC. MAX.

150 - 200 °C

260 +0/-5 °C

t 25 °C to PEAK

60 to 150 SEC.

20-40 SEC.

TIME WITHIN 5 °C of A CTUAL

PEAK TEMPERA TURE

PREHEAT

60 to 180 SEC.

Tsmax

Tsmin

TIME

TEMPERATURE

NOTES:

THE TIME FROM 25 °C to PEAK TEMPERATURE = 8 MINUTES MAX.

Tsmax = 200 °C, Tsmin = 150 °C

OUTPUT POWER – P

, INPUT CURRENT – I

– CASE TEMPERATURE – °C

200

600

400

800

50 75 100

200

150 175

(mW)

125

100

300

500

700 I

(mA)

Insulation and Safety Related Specifications

Parameter Symbol HCPL-3140 HCPL-0314 Units Conditions

Minimum External Air Gap L(101) 7.1 4.9 mm Measured from input terminals

(Clearance) to output terminals, shortest

distance through air.

Minimum External Tracking L(102) 7.4 4.8 mm Measured from input terminals

(Creepage) to output terminals, shortest

distance path along body.

Minimum Internal Plastic Gap 0.08 0.08 mm Through insulation distance

(Internal Clearance) conductor to conductor, usually

the straight line distance

thickness between the emitter

and detector.

Tracking Resistance CTI >175 >175 V DIN IEC 112/VDE 0303 Part 1

(Comparative Tracking Index)

Isolation Group IIIa IIIa Material Group (DIN VDE

0110, 1/89, Table 1)

Absolute Maximum Ratings

Parameter Symbol Min. Max. Units Note

Storage Temperature TS-55 125 °C

Operating Temperature TA-40 100 °C

Average Input Current IF(AVG) 25 mA 1

Peak Transient Input Current (<1 µs pulse IF(TRAN) 1.0 A

width, 300pps)

Reverse Input Voltage VR5V

“High” Peak Output Current IOH(PEAK) 0.6 A 2

“Low” Peak Output Current IOL(PEAK) 0.6 A 2

Supply Voltage VCC-VEE -0.5 35 V

Output Voltage VO(PEAK) -0.5 VCC V

Output Power Dissipation PO250 mW 3

Input Power Dissipation PI105 mW 4

Lead Solder Temperature 260°C for 10 sec., 1.6 mm below seating plane

Solder Reflow Temperature Profile See Package Outline Drawings section

Electrical Specifications (DC)

Over recommended operating conditions unless otherwise specified.

Test

Parameter Symbol Min. Typ. Max. Units Conditions Fig. Note

High Level Output Current IOH 0.2 A Vo = VCC- 4 2 5

0.4 0.5 Vo = VCC-10 3 2

Low Level Output Current IOL 0.2 0.4 A Vo = VEE+2.5 5 5

0.4 0.5 Vo = VEE+10 6 2

High Level Output Voltage VOH VCC-4 VCC-1.8 V Io = -100 mA 1 6,7

Low Level Output Voltage VOL 0.4 1 V Io = 100 mA 4

High Level Supply Current ICCH 0.7 3 mA Io = 0 mA 7,8 14

Low Level Supply Current ICCL 1.2 3 mA Io = 0 mA

Threshold Input Current IFLH 7 mA Io = 0 mA, 9,15

Low to High Vo>5 V

Threshold Input Voltage VFHL 0.8 V

High to Low

Input Forward Voltage VF1.2 1.5 1.8 V IF = 10 mA 16

Temperature Coefficient of DVF/DTA–1.6 mV/°C

Input Forward Voltage

Input Reverse Breakdown BVR5VI

R = 10 µA

Voltage

Input Capacitance CIN 60 pF f = 1 MHz,

VF = 0 V

Recommended Operating Conditions

Parameter Symbol Min. Max. Units Note

Power Supply VCC-VEE 10 30 V

Input Current (ON) IF(ON) 812mA

Input Voltage (OFF) VF(OFF) -3.0 0.8 V

Operating Temperature TA-40 100 °C

Switching Specifications (AC)

Over recommended operating conditions unless otherwise specified.

Test

Parameter Symbol Min. Typ. Max. Units Conditions Fig. Note

Propagation Delay Time to tPLH 0.1 0.2 0.7 µs Rg = 47 Ω, 10,11, 14

High Output Level Cg = 3 nF, 12,13,

Propagation Delay Time to tPHL 0.1 0.3 0.7 µsf = 10 kHz, 14,17

Low Output Level Duty Cycle =

Propagation Delay PDD -0.5 0.5 µs50%, 10

Difference Between Any IF = 8 mA,

Two Parts or Channels VCC = 30 V

Rise Time tR50 ns

Fall Time tF50 ns

Output High Level Common

|CMH| 10 kV/µsT

A = 25°C, 18 11

Mode Transient Immunity VCM = 1 kV

Output Low Level Common

|CML| 10 kV/µs1812

Mode Transient Immunity

Package Characteristics

Test

Parameter Symbol Min. Typ. Max. Units Conditions Fig. Note

Input-Output Momentary VISO 3750 Vrms TA=25°C, 8,9

Withstand Voltage RH<50% for

Input-Output Resistance RI-O 1012 ΩVI-O=500 V 9

Input-Output Capacitance CI-O 0.6 pF Freq=1 MHz

Notes:

1. Derate linearly above 70 °C free air temperature at a rate of 0.3 mA/°C.

2. Maximum pulse width = 10 µs, maximum duty cycle = 0.2%. This value is intended to allow for component tolerances for designs with IO peak

minimum = 0.4 A. See Application section for additional details on limiting IOL peak.

3. Derate linearly above 85 °C, free air temperature at the rate of 4.0 mW/°C.

4. Input power dissipation does not require derating.

5. Maximum pulse width = 50 µs, maximum duty cycle = 0.5%.

6. In this test, VOH is measured with a DC load current. When driving capacitive load VOH will approach VCC as IOH approaches zero amps.

7. Maximum pulse width = 1 ms, maximum duty cycle = 20%.

8. In accordance with UL 1577, each optocoupler is proof tested by applying an insulation test voltage ≥ 4500 Vrms for 1 second (leakage detection

current limit II-O ≤ 5 µA). This test is performed before 100% production test for partial discharge (method B) shown in the IEC/EN/DIN EN

60747-5-2 Insulation Characteristics Table, if applicable.

9. Device considered a two-terminal device: pins on input side shorted together and pins on output side shorted together.

10. PDD is the difference between t PHL and tPLH between any two parts or channels under the same test conditions.

11. Common mode transient immunity in the high state is the maximum tolerable |dVcm/dt| of the common mode pulse VCM to assure that the output

will remain in the high state (i.e. Vo > 6.0 V).

12. Common mode transient immunity in a low state is the maximum tolerable |dVCM/dt| of the common mode pulse, VCM, to assure that the output

will remain in a low state (i.e. Vo < 1.0 V).

13. This load condition approximates the gate load of a 1200 V/25 A IGBT.

14. The power supply current increases when operating frequency and Qg of the driven IGBT increases.

Figure 1. VOH vs. Temperature. Figure 2. IOH vs. Temperature. Figure 3. VOH vs. IOH.

Figure 4. VOL vs. Temperature. Figure 5. I OL vs. Temperature. Figure 6. VOL vs. IOL.

Figure 7. ICC vs. Temperature. Figure 8. ICC vs. VCC. Figure 9. IFLH vs. Temperature.

-V

) – HIGH OUTPUT VOLTAGE DROP – V

-50

-2.5

– TEMPERATURE – °C

125-25

0 25 75 10050

-2.0

-1.5

-1.0

-0.5

– OUTPUT HIGH CURRENT – A

-50

0.30

– TEMPERATURE – °C

125-25

0.40

0 25 75 10050

0.32

0.34

0.36

0.38

-6

– OUTPUT HIGH CURRENT – A

0.6

0.2 0.4

-5

-4

-3

-1

-V

) – OUTPUT HIGH VOLTAGE DROP – V

-2

VOL – OUTPUT LOW VOLTAGE – V

-50

0.39

TA – TEMPERATURE – °C

125-25

0.44

0 25 75 10050

0.40

0.41

0.42

0.43

– OUTPUT LOW CURRENT – A

-50

0.440

– TEMPERATURE – °C

125-25

0.470

0 25 75 10050

0.450

0.455

0.460

0.465

0.445

– SUPPLY CURRENT – mA

-50

– TEMPERATURE – °C

125-25

1.4

0 25 75 10050

0.4

0.6

0.8

1.2

0.2

1.0

– SUPPLY CURRENT – mA

– SUPPLY VOLTAGE – V

3015

1.2

20 25

0.4

0.8

0.2

0.6

1.0

FLH

– LOW TO HIGH CURRENT THRESHOLD – mA

-50

1.5

– TEMPERATURE – °C

125-25

3.5

0 25 75 10050

2.0

2.5

3.0

– OUTPUT LOW VOLTAGE – V

– OUTPUT LOW CURRENT – mA

700100

400 500

200 300 600

Figure 10. Propagation Delay vs. VCC. Figure 11. Propagation Delay vs. IF. Figure 12. Propagation Delay vs.

Temperature.

Figure 13. Propagation Delay vs. Rg. Figure 14. Propagation Delay vs. Cg. Figure 15. Transfer Characteristics.

Figure 16. Input Current vs. Forward Voltage.

– PROPAGATION DELAY – ns

– FORWARD LED CURRENT – mA

400

91512

100

200

300

-50

– TEMPERATURE – °C

125-25

500

0 25 75 10050

100

200

300

400

– PROPAGATION DELAY – ns

PLH

PHL

– PROPAGATION DELAY – ns

200

Rg – SERIES LOAD RESISTANCE – Ω

200

400

50 150100

250

300

350

PLH

PHL

IF – FORWARD CURRENT – mA

1.2

VF – FORWARD VOLTAGE – V

1.8

1.4 1.6

– PROPAGATION DELAY – ns

Cg – LOAD CAPACITANCE – nF

100

400

20 8060

100

200

300

PLH

PHL

– PROPAGATION DELAY – ns

– SUPPLY VOLTAGE – V

400

15 2520

100

200

300

PLH

PHL

– OUTPUT VOLTAGE – V

-5

– FORWARD LED CURRENT – mA

234

Figure 17. Propagation Delay Test Circuit and Waveforms.

Figure 18. CMR Test Circuit and Waveforms.

0.1 µF VCC = 15

to 30 V

47 Ω

IF = 7 to 16 mA

–

10 KHz

50% DUTY

CYCLE

500 Ω

3 nF

VOUT

tPHL

tPLH

10%

50%

90%

0.1 µF

VCC = 30 V

VO+

–

VCM = 1500 V

5 V

VCM

∆t

0 V

SWITCH AT B: IF = 0 mA

SWITCH AT A: IF = 10 mA

VOL

VOH

∆t

VCM

δV

δt=

+ HVDC

3-PHASE

- HVDC

0.1 µF V

= 15 V

–

HCPL-3140/HCPL-0314

270 Ω

+5 V

CONTROL

INPUT

74XXX

OPEN

COLLECTOR

Applications Information

Eliminating Negative IGBT Gate

Drive

To keep the IGBT firmly off,

the HCPL-3140/HCPL-0314 has a

very low maximum VOL

specification of 1.0 V. Minimizing

Rg and the lead inductance from

the HCPL-3140/HCPL-0314 to

the IGBT gate and emitter

(possibly by mounting the

HCPL-3140/HCPL-0314 on a

small PC board directly above the

IGBT) can eliminate the need for

negative IGBT gate drive in many

applications as shown in

Figure 19. Care should be taken

with such a PC board design to

avoid routing the IGBT collector

or emitter traces close to the

HCPL-3140/HCPL-0314 input as

this can result in unwanted

coupling of transient signals into

the input of HCPL-3140/

HCPL-0314 and degrade

performance. (If the IGBT

drain must be routed near the

HCPL-3140/HCPL-0314 input,

then the LED should be reverse

biased when in the off state, to

prevent the transient signals

coupled from the IGBT drain

from turning on the HCPL-3140/

HCPL-0314.)

Figure 19. Recommended LED Drive and Application Circuit for HCPL-3140/HCPL-0314.

Selecting the Gate Resistor (Rg)

Step 1: Calculate Rg minimum from the IOL peak specification. The IGBT

and Rg in Figure 19 can be analyzed as a simple RC circuit with a

voltage supplied by the HCPL-3140/HCPL-0314.

The VOL value of 5 V in the previous equation is the VOL at the peak

current of 0.6A. (See Figure 6).

Step 2: Check the HCPL-3140/HCPL-0314 power dissipation and

increase Rg if necessary. The HCPL-3140/HCPL-0314 total power

dissipation (PT) is equal to the sum of the emitter power (PE) and the

output power (PO).

PT = PE + PO

PE = IF • VF • Duty Cycle

PO = PO(BIAS) + PO(SWITCHING) = ICC •

VCC + ESW (Rg,Qg)• f

= (ICCBIAS + KICC •

Qg •

f) •

VCC + ESW (Rg,Qg) •

where KICC •

Qg •

f is the increase in ICC due to switching and KICC is a

constant of 0.001 mA/(nC*kHz). For the circuit in Figure 19 with IF

(worst case) = 10 mA, Rg = 32 Ω, Max Duty Cycle = 80%,

Qg = 100 nC, f = 20 kHz and TAMAX = 85°C:

PE = 10 mA • 1.8 V • 0.8 = 14 mW

PO = (3 mA + (0.001 mA/(nC • kHz)) • 20 kHz • 100 nC) • 24 V +

0.4

J • 20 kHz = 80 mW

< 260 mW (PO(MAX) @ 85°C)

The value of 3 mA for ICC in the previous equation is the max. ICC over

entire operating temperature range.

Since PO for this case is less than PO(MAX), Rg = 32 Ω is alright for the

power dissipation.

= 24 V – 5 V

0.6A

= 32 Ω

Figure 20. Energy Dissipated in the

HCPL-0314 and for Each IGBT Switching

Cycle.

LED Drive Circuit Considerations for

Ultra High CMR Performance

Without a detector shield, the

dominant cause of optocoupler

CMR failure is capacitive

coupling from the input side of

the optocoupler, through the

package, to the detector IC

as shown in Figure 21. The

HCPL-3140/HCPL-0314 improves

CMR performance by using a

detector IC with an optically

transparent Faraday shield, which

diverts the capacitively coupled

current away from the sensitive

IC circuitry. However, this shield

does not eliminate the capacitive

coupling between the LED and

opto-coupler pins 5-8 as shown in

Figure 22. This capacitive

coupling causes perturbations in

the LED current during common

mode transients and becomes the

major source of CMR failures for

a shielded optocoupler. The main

design objective of a high CMR

LED drive circuit becomes

keeping the LED in the proper

state (on or off) during common

mode transients. For example,

the recommended application

circuit (Figure 19), can achieve

10 kV/µs CMR while minimizing

component complexity.

Techniques to keep the LED in

the proper state are discussed in

the next two sections.

≥

VCC – VOL

IOLPEAK

Esw – ENERGY PER SWITCHING CYCLE – µJ

Rg – GATE RESISTANCE – Ω

100

1.5

4.0

1.0

60 80

3.5 Qg = 50 nC

Qg = 100 nC

Qg = 200 nC

Qg = 400 nC

3.0

2.0

0.5

2.5

Figure 21. Optocoupler Input to Output Capacitance Model

for Unshielded Optocouplers. Figure 22. Optocoupler Input to Output Capacitance Model

for Shielded Optocouplers.

Figure 23. Equivalent Circuit for Figure 17 During Common Mode Transient.

Figure 24. Not Recommended Open Collector Drive Circuit. Figure 25. Recommended LED Drive Circuit for Ultra-High CMR IPM

Dead Time and Propagation Delay Specifications.

LEDP

LEDN

LEDP

LEDN

SHIELD

LEDO1

LEDO2

SAT

LEDP

LEDN

SHIELD

* THE ARROWS INDICATE THE DIRECTION

OF CURRENT FLOW DURING –dV

/dt.

+5 V

–V

= 18 V

• • •

0.1

µF

–

LEDP

LEDN

SHIELD

+5 V

Q1 I

LEDN

LEDP

LEDN

SHIELD

+5 V

CMR with the LED On (CMRH)

A high CMR LED drive circuit

must keep the LED on during

common mode transients. This is

achieved by overdriving the LED

current beyond the input

threshold so that it is not pulled

below the threshold during a

transient. A minimum LED

current of 8 mA provides

adequate margin over the

maximum IFLH of 5 mA to

achieve 10 kV/µs CMR.

CMR with the LED Off (CMRL)

A high CMR LED drive

circuit must keep the LED off

(VF ≤ VF(OFF)) during common

mode transients. For example,

during a -dVCM/dt transient in

Figure 23, the current flowing

through CLEDP also flows

through the RSAT and VSAT of the

logic gate. As long as the low

state voltage developed across

the logic gate is less than VF(OFF)

the LED will remain off and no

common mode failure will occur.

The open collector drive circuit,

shown in Figure 24, can not keep

the LED off during a +dVCM/dt

transient, since all the current

flowing through CLEDN must be

supplied by the LED, and it is

not recommended for

applications requiring ultra high

CMR1 performance. The

alternative drive circuit which

like the recommended

application circuit (Figure 19),

does achieve ultra high CMR

performance by shunting the

LED in the off state.

IPM Dead Time and Propagation

Delay Specifications

The HCPL-3140/HCPL-0314

includes a Propagation Delay

Difference (PDD) specification

intended to help designers

minimize “dead time” in their

power inverter designs. Dead

time is the time high and low

side power transistors are off.

Any overlap in Ql and Q2

conduction will result in large

currents flowing through the

power devices from the high-

voltage to the low-voltage motor

rails. To minimize dead time in a

given design, the turn on of

LED2 should be delayed (relative

to the turn off of LED1) so that

under worst-case conditions,

transistor Q1 has just turned off

when transistor Q2 turns on, as

shown in Figure 26. The amount

of delay necessary to achieve this

condition is equal to the

maximum value of the

propagation delay difference

specification, PDD max, which is

specified to be 500 ns over the

operating temperature range of

-40° to 100°C.

Delaying the LED signal by the

maximum propagation delay

difference ensures that the

minimum dead time is zero, but it

does not tell a designer what the

maximum dead time will be. The

maximum dead time is equivalent

to the difference between the

maximum and minimum

propagation delay difference

specification as shown in

Figure 27. The maximum dead

time for the HCPL-3140/HCPL-

0314 is 1 µs (= 0.5 µs - (-0.5 µs))

over the operating temperature

range of –40°C to 100°C.

Note that the propagation delays

used to calculate PDD and dead

time are taken at equal

temperatures and test conditions

since the optocouplers under

consideration are typically

mounted in close proximity to

each other and are switching

identical IGBTs.

Figure 26. Minimum LED Skew for Zero Dead Time.

Figure 27. Waveforms for Dead Time.

tPLH

MIN

MAXIMUM DEAD TIME

(DUE TO OPTOCOUPLER)

= (tPHL MAX - tPHL MIN) + (tPLH MAX - tPLH MIN)

= (tPHL MAX - tPLH MIN) – (tPHL MIN - tPLH MAX)

= PDD* MAX – PDD* MIN

*PDD = PROPAGATION DELAY DIFFERENCE

NOTE: FOR DEAD TIME AND PDD CALCULATIONS ALL PROPAGATION

DELAYS ARE TAKEN AT THE SAME TEMPERATURE AND TEST CONDITIONS.

VOUT1

ILED2

VOUT2

ILED1

Q1 ON

Q2 OFF

Q1 OFF

Q2 ON

tPHL MIN

tPHL MAX

tPLH MAX

PDD* MAX

(tPHL-tPLH) MAX

tPHL MAX

tPLH MIN

PDD* MAX = (tPHL- tPLH)MAX = tPHL MAX - tPLH MIN

*PDD = PROPAGATION DELAY DIFFERENCE

NOTE: FOR PDD CALCULATIONS THE PROPAGATION DELAYS

ARE TAKEN AT THE SAME TEMPERATURE AND TEST CONDITIONS.

VOUT1

ILED2

VOUT2

ILED1

Q1 ON

Q2 OFF

Q1 OFF

Q2 ON

www.agilent.com/semiconductors

For product information and a complete list of

distributors, please go to our web site.

For technical assistance call:

Americas/Canada: +1 (800) 235-0312 or

(916) 788-6763

Europe: +49 (0) 6441 92460

China: 10800 650 0017

Hong Kong: (+65) 6756 2394

India, Australia, New Zealand: (+65) 6755 1939

Japan: (+81 3) 3335-8152 (Domestic/Interna-

tional), or 0120-61-1280 (Domestic Only)

Korea: (+65) 6755 1989

Singapore, Malaysia, Vietnam, Thailand,

Philippines, Indonesia: (+65) 6755 2044

Taiwan: (+65) 6755 1843

Data subject to change.

Obsoletes 5989-2138EN

April 21, 2005

5989-2940EN