DC/DC CONVERTERS High Current, High y, Low 1
2 YEAR WARRANTY
NEW Product
All are typical at nominal input, full load at 25 °C ambient unless otherwise stated SPECIFICATIONS
File Name: eighth_brick.pdf Rev (07): 16 Nov 2005
•Ultra-high e ciency topology
•
Industry standard eighth brick footprint (identical to quarter-brick pinout)
•Low pr through-hole version
•
Low pr with 38% space savings over other quarter-brick brick converters
•Wi de ambient temperature range, -40 ºC to +85 ºC
•80% to 110% output trim
•Monotonic start-up in normal and prebiased loads
•Basic insulation system
•Overvoltage and overtemperature protection
•Secondary side control, no optocouplers,
fast transient response
•100 V, 100 ms input voltage transient rated
•Available RoHS compliant
Eighth-Brick Series
S i ngle outpu t
This is a new high e ciency, open-frame, low pr single board, isolated dc-dc
converter series in an industry standard eight-brick footprint that provides up to 100 W of
output power. The series delivers very high output current at low voltages, and excellent
useable power for today’s high performance applications. The series features an input
voltage range of 18 Vdc to 36 Vdc and 36 Vdc to 75 Vdc and is available with output voltages of
1.2 V, 1.5 V 1.8 V, 2.5 V, 3.3 V and 5.0 V. The output voltage is adjustable from 80% to 110% of
the nominal value. The series also has a remote ON/OFF capability. Overcurrent, overvoltage and
overtemperature protection features are included as standard. Full international safety approval
including EN60950-1 VDE and UL/cUL60950, reduces compliance costs and time to market.
EMC CHARACTERISTICS
Immunity:
ESD air enclosure EN61000-4-2 8 kV/6 kV(O/P within spec.)
Radiated enclosure EN61000-4-3 10 V/m (O/P within spec.)
Conducted EN61000-4-6 10 V (O/P within spec.)
Input transients 100 V, 100 ms
GENERAL SPECIFICATIONS
Basic insulation Input/output 2250 Vdc
zHk 084dexiFycneuqerf gnihctiwS
Approvals and (See Note 3) EN60950-1 VDE
05906 LUc/LU sdradnats
0-V49LUytilibammalf lairetaM
W )zo 37.0( g 12thgie
MTBF Telcordia Tech SR-332 4,034,120 hours
ENVIRONMENTAL SPECIFICATIONS
Thermal performance Operating ambient. -40 °C to +85 °C
temperature
Non-operating -55 °C to +125 °C
PROTECTION
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gnihctal-noN egatlovrevO
htiw erutarepmet tops toh Cº 521 lamrehT
automatic recovery
International Safety Standard Approvals
UL/cUL CAN/CSA 22.2 No. 60950-00 : UL 60950
File No. E135734/60950
VDE No. 40005017. File No. 10401-3336-0197
CB Report and to IEC60950, No. DE1-31103
OUTPUT SPECIFICATIONS
V %011 ot %08ytilibatsujda egatlo
%0daol muminiM
Overshoot At turn-on and turn-o None
enoNtoohsrednU
Transient response 60 mV to 150 mV typ. deviation
yrevocer sµ 02)1 etoN eeS(
INPUT SPECIFICATIONS
Input voltage range 24 V nominal 18-36 Vdc
48 V nominal 36-75 Vdc
Am 05daol oNtnerruc tupnI
Remote OFF 5 mA
Active high remote ON/OFF
Logic compatibility Open collector ref to -input
cdV 4.2> ro tiucric nepONO
cdV 4.0<FFO
Undervoltage Lockout
24 Vin Power up 17.5 V (typ.)
Power down 16.5 V (typ.)
48 Vin Power up 35.5 V (typ.)
Power down 33.5 V (typ.)
48 Vin Start-up time Power up 15 ms (typ.)
(See Note 2) Remote ON/OFF 15 ms (typ.)
For the most current data and application support visit www.artesyn.com/powergroup/products.htm
DC/DC CONVERTERS High Current, High Efficiency, Low Profile 2
NEW Product
File Name: eighth_brick.pdf Rev (07): 16 Nov 2005
LES50A48-1V2RANJ
Part Number System with Options
L= Low Profile
E= 1/8 Brick
Number of outputs
S = Single
Rated Output Current
10 A = 10 Amps, 15 A = 15 Amps etc.
Nominal Rated Input Voltage
24 = 24 Volts (18 Vdc to 36 Vdc range)
48 = 48 Volts (36 Vdc to 75 Vdc range)
Body Height, Package Type and Pin Length
A = 0.300” (7.62 mm), Through Hole,
0.188” (4.78 mm) Pins
E = 0.340” (8.64 mm), Through Hole,
0.188” (4.78 mm) Pins
S= Surface Mount
Eighth-Brick Series
Single output
Notes
1di/dt = 1 A/µs, Vin = 24 or 48 Vdc, Tc = 25 °C, load change = 50% to
75% lo max. and 75% to 50% lo max. Deviation varies by model. For
further details see long form data sheets.
2Start-up into resistive load.
3This product is only for inclusion by professional installers within other
equipment and must not be operated as a stand alone product.
4Recommended input fusing is up to 10 A HRC 200 V rated fuse.
5Peak to peak measured with no external Pi filter. Significant reduction
possible with external filter. See Application Note 138 for further details.
6Active low Remote ON/OFF is available. Standard product is Active
High. When ordering active low parts, designate with the Suffix ‘R’ e.g.
LES50A48-1V2RAJ.
7TSE RoHS 5/6 (non Pb-free) compliant versions may be available on
special request, please contact your local sales representative for details.
8NOTICE: Some models do not support all options. Please contact your
local Artesyn representative or use the on-line model number search tool
at http://www.artesyn.com/powergroup/products.htm to find a suitable
alternative.
Pin Length Options
Blank = 0.188” (4.78 mm)
N = 0.145” (3.68 mm)
K = 0.110” (2.79 mm)
OUTPUT
INPUT INPUT OUTPUT
EFFICIENCY
REGULATION
MODEL
VOLTAGE
CURRENT RIPPLE CURRENT
(TYP.) SET POINT
LINE LOAD
RIPPLE &
NUMBER (7,8)
(MAX.) (4) CURRENT (5) (MAX.) ACCURACY NOISE
(MAX.) (pk - pk)
48 Vin VALUE MODELS
1.2 V 0.98 A 100 mA 25 A 88% ±1.5% ±0.1% ±0.2% 60 mV LES25A48-1V2J
1.5 V 1.21 A 100 mA 25 A 89.5% ±1.5% ±0.1% ±0.2% 60 mV LES25A48-1V5J
1.8 V 1.43 A 100 mA 25 A 90.5% ±1.5% ±0.1% ±0.2% 60 mV LES25A48-1V8J
2.5 V 1.62 A 150 mA 20 A 90% ±1.5% ±0.1% ±0.2% 60 mV LES20A48-2V5J
3.3 V 2.11 A 150 mA 20 A 91% ±1.5% ±0.1% ±0.2% 60 mV LES20A48-3V3J
5.0 V 1.59 A 100 mA 10 A 92% ±1.5% ±0.1% ±0.2% 60 mV LES10A48-5V0J
48 Vin PERFORMANCE MODELS
1.2 V 1.98 A 150 mA 50 A 86% ±1.5% ±0.1% ±0.2% 60 mV LES50A48-1V2J
1.5 V 1.91 A 150 mA 40 A 88.5% ±1.5% ±0.1% ±0.2% 60 mV LES40A48-1V5J
1.8 V 2.30 A 150 mA 40 A 90% ±1.5% ±0.1% ±0.2% 60 mV LES40A48-1V8J
2.5 V 1.99 A 200 mA 25 A 89.5% ±1.5% ±0.1% ±0.2% 60 mV LES25A48-2V5J
3.3 V 2.65 A 200 mA 25 A 90.5% ±1.5% ±0.1% ±0.2% 60 mV LES25A48-3V3J
5.0 V 2.30 A 150 mA 15 A 91.5% ±1.5% ±0.1% ±0.2% 60 mV LES15A48-5V0J
48 Vin ULTRA MODELS
2.5 V 3.20 A 150 mA 40 A 91% ±1.5% ±0.1% ±0.2% 60 mV LES40A48-2V5J
3.3 V 3.20 A 150 mA 30 A 90.5% ±1.5% ±0.1% ±0.2% 60 mV LES30A48-3V3J
5.0 V 3.20 A 150 mA 20 A 92% ±1.5% ±0.1% ±0.2% 60 mV LES20A48-5V0J
24 Vin MODELS
1.8 V 2.40 A 50 mA 20 A 91% ±1.5% ±0.1% ±0.2% 35 mV LES20A24-1V8J
3.3 V 4.25 A 170 mA 20 A 90% ±1.5% ±0.1% ±0.2% 60 mV LES20A24-3V3J
Output Voltage
1V2 = 1.2 Volts, 1V5 = 1.5 Volts etc.
RoHS Compliance (7)
J = Pb-free (RoHS 6/6 compliant)
Remote ON/OFF Logic
Blank = Positive
R = Negative
For the most current data and application support visit www.artesyn.com/powergroup/products.htm
DC/DC CONVERTERS High Current, High Efficiency, Low Profile 3
NEW Product
Datasheet © Artesyn Technologies
®
2005
The information and specifications contained in this datasheet are believed to be correct at time of publication. However, Artesyn Technologies accepts no responsibility for consequences arising
from printing errors or inaccuracies. The information and specifications contained or described herein are subject to change in any manner at any time without notice. No rights under any patent
accompany the sale of any such product(s) or information contained herein.
Please consult our website for the following items: ✔ Application Note ✔ Longform Data Sheets www.artesyn.com
File Name: eighth_brick.pdf Rev (07): 16 Nov 2005
Eighth-Brick Series
Single output
DIMENSION OPTIONS
OPTION CLEARANCE HEIGHT
±0.016 (0.41) +0.022 (0.56)
-0.030 (0.76)
A0.030 (0.76) 0.300 (7.62)
E0.070 (1.78) 0.340 (8.64)
2.30 (58.4)
2.000 (50.80)
0.300
(7.62)
0.45
(11.4) ø 0.062 ±0.002
(ø1.57 ±0.05) (2 pls)
1
4
5
6
7
8
3
2
TOP VIEW
ø0.040 ±0.002
(ø1.02 ±0.05) (6 pls)
0.90
(22.9)
0.150
(3.81)
0.300
(7.62)
0.145 ±0.020
(3.68 ±0.51)
0.188 (4.78)
CLEARANCE
See Option Table
HEIGHT
See Option Table
Dimensions in Inches (mm)
Tolerances (unless otherwise specified)
x.xx ±0.02 (x.x ±0.5)
x.xxx ±0.010 (x.xx ±0.25)
2.30 (58.4)
2.000 (50.80)
0.300
(7.62)
ø 0.080 ±0.008
(ø2.03 ±0.02) (2 pls)
Ref IPC-2222 Level B
1
4
5
6
7
8
3
2
ø0.058 ±0.008
(ø1.47 ±0.02) (6 pls)
Ref IPC-2222 Level B
0.300
(7.62)
0.145 ±0.020
(3.68 ±0.51)
RECOMMENDED HOLE PATTERN
0.150
(3.81)
0.150
(3.81)
0.150
(3.81)
0.90
(22.9)
0.45
(11.4)
Dimensions in Inches (mm)
Tolerances (unless otherwise specified)
x.xx ±0.02 (x.x ±0.5)
x.xxx ±0.010 (x.xx ±0.25)
CLEARANCE
0.015 (0.38)
0.300
(7.62)
0.300
(7.62)
0.450±0.020
(11.43±0.51)
0.90
(22.9)
0.300
(7.62)
ø0.058±0.008
(ø1.47±0.02)
(6 PLS)
0.450±0.020
0.90
(22.9)
0.300
(7.62)
0.057±0.020
(1.45±0.51)
0.150
(3.81)
8
1
2.000
TOP VIEW
0.145±0.020
(3.68±0.51)
2
3
5
4
6
7
2.186
(55.52)
2.30
(58.4)
0.057±0.020
(1.45±0.51)
0.150
(3.81)
0.067(1.70) x 0.118(3.00)
(8 pls)
ø0.080±0.008
(ø2.03±0.02)
(2 pls)
0.150
(3.81)
TOP VIEW
3
2
1
4
5
8
6
7
0.150
(3.81)
2.186
(55.52)
2.30
(58.4) 0.055 (1.40) x 0.105 (2.67)
(7 pls)
(50.80)
(11.43±0.51)
HEIGHT
0.28 (7.1)
Lead coplanarity within 0.006 [0.15] MAX
Ref IPC-2222 Level B
Ref IPC-2222 Level B
Through-hole Mechanical Drawing, Dimension Options and Pinout Table
PIN CONNECTIONS
PIN NUMBER FUNCTION PIN NUMBER FUNCTION
1+Vin5-Sense
2ON/OFF 6 Trim
3-Vin7+Sense
4-Vout 8 +Vout
Surface-mount Mechanical Drawing and Pinout Table
PIN CONNECTIONS
PIN NUMBER FUNCTION PIN NUMBER FUNCTION
1+Vin5-Sense
2ON/OFF 6 Trim
3-Vin7+Sense
4-Vout 8 +Vout
