Eighth-Brick Series
Single output
DC/DC CONVERTERS
•
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•
•
•
•
•
•
•
•
High Current, High Efficiency, Low Profile
NEW Product
1
Ultra-high efficiency topology
Industry standard eighth brick footprint (identical to quarter-brick pinout)
Low profile through-hole version
Low profile with 38% space savings over other quarter-brick brick converters
Wide 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
This is a new high efficiency, open-frame, low profile, 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.
All specifications are typical at nominal input, full load at 25 °C ambient unless otherwise stated
Patent No. 6,765,810
Other Patents Pending
2 YEAR WARRANTY
SPECIFICATIONS
OUTPUT SPECIFICATIONS
Voltage adjustability
Minimum load
Overshoot
Undershoot
Transient response
(See Note 1)
INPUT SPECIFICATIONS
Input voltage range
Input current
24 V nominal
48 V nominal
No load
Remote OFF
18-36 Vdc
36-75 Vdc
50 mA
5 mA
Open collector ref to -input
Open circuit or >2.4 Vdc
<0.4 Vdc
up
down
up
down
17.5
16.5
35.5
33.5
V (typ.)
V (typ.)
V (typ.)
V (typ.)
At turn-on and turn-off
80% to 110%
0%
None
None
60 mV to 150 mV typ. deviation
20 µs recovery
EMC CHARACTERISTICS
Immunity:
ESD air enclosure
Radiated field enclosure
Conducted
Input transients
EN61000-4-2 8 kV/6 kV(O/P within spec.)
EN61000-4-3 10 V/m (O/P within spec.)
EN61000-4-6 10 V
(O/P within spec.)
100 V, 100 ms
GENERAL SPECIFICATIONS
Basic insulation
Switching frequency
Approvals and
standards
Material flammability
Weight
MTBF
Input/output
Fixed
(See Note 3)
2250 Vdc
480 kHz
EN60950-1 VDE
UL/cUL 60950
UL94V-0
21 g (0.73 oz)
Telcordia Tech SR-332 4,034,120 hours
Active high remote ON/OFF
Logic compatibility
ON
OFF
Undervoltage Lockout
24 Vin
48 Vin
48 Vin Start-up time
(See Note 2)
Power
Power
Power
Power
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
Operating ambient.
temperature
Non-operating
-40 °C to +85 °C
-55 °C to +125 °C
PROTECTION
Shortcircuit
Overvoltage
Thermal
Continuous
Non-latching
125 ºC hot spot temperature with
automatic recovery
Power up
Remote ON/OFF
15 ms (typ.)
15 ms (typ.)
International Safety Standard Approvals
UL/cUL CAN/CSA 22.2 No. 60950-00 : UL 60950
File No. E135734/60950
VDE Certificate No. 40005017. File No. 10401-3336-0197
CB Report and Certificate to IEC60950, Certificate No. DE1-31103
File Name: eighth_brick.pdf Rev (07): 16 Nov 2005
Eighth-Brick Series
Single output
DC/DC CONVERTERS
High Current, High Efficiency, Low Profile
NEW Product
MODEL
NUMBER
(7,8)
2
For the most current data and application support visit www.artesyn.com/powergroup/products.htm
OUTPUT
VOLTAGE
INPUT
CURRENT
(MAX.)
(4)
INPUT
RIPPLE
CURRENT
(5)
OUTPUT
CURRENT
(MAX.)
REGULATION
EFFICIENCY
(TYP.)
SET POINT
ACCURACY
(MAX.)
±1.5%
±1.5%
±1.5%
±1.5%
±1.5%
±1.5%
±1.5%
±1.5%
±1.5%
±1.5%
±1.5%
±1.5%
±1.5%
±1.5%
±1.5%
±1.5%
±1.5%
LINE
LOAD
RIPPLE &
NOISE
(pk - pk)
60 mV
60 mV
60 mV
60 mV
60 mV
60 mV
60 mV
60 mV
60 mV
60 mV
60 mV
60 mV
60 mV
60 mV
60 mV
35 mV
60 mV
48 Vin VALUE MODELS
1.2 V
1.5 V
1.8 V
2.5 V
3.3 V
5.0 V
1.2 V
1.5 V
1.8 V
2.5 V
3.3 V
5.0 V
2.5 V
3.3 V
5.0 V
1.8 V
3.3 V
0.98 A
1.21 A
1.43 A
1.62 A
2.11 A
1.59 A
1.98 A
1.91 A
2.30 A
1.99 A
2.65 A
2.30 A
3.20 A
3.20 A
3.20 A
2.40 A
4.25 A
100 mA
100 mA
100 mA
150 mA
150 mA
100 mA
150 mA
150 mA
150 mA
200 mA
200 mA
150 mA
150 mA
150 mA
150 mA
50 mA
170 mA
25 A
25 A
25 A
20 A
20 A
10 A
50 A
40 A
40 A
25 A
25 A
15 A
40 A
30 A
20 A
20 A
20 A
88%
89.5%
90.5%
90%
91%
92%
86%
88.5%
90%
89.5%
90.5%
91.5%
91%
90.5%
92%
24 Vin MODELS
91%
90%
±0.1%
±0.1%
±0.2%
±0.2%
LES20A24-1V8J
LES20A24-3V3J
±0.1%
±0.1%
±0.1%
±0.1%
±0.1%
±0.1%
±0.1%
±0.1%
±0.1%
±0.1%
±0.1%
±0.1%
±0.1%
±0.1%
±0.1%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
±0.2%
LES25A48-1V2J
LES25A48-1V5J
LES25A48-1V8J
LES20A48-2V5J
LES20A48-3V3J
LES10A48-5V0J
LES50A48-1V2J
LES40A48-1V5J
LES40A48-1V8J
LES25A48-2V5J
LES25A48-3V3J
LES15A48-5V0J
LES40A48-2V5J
LES30A48-3V3J
LES20A48-5V0J
48 Vin PERFORMANCE MODELS
48 Vin ULTRA MODELS
Part Number System with Options
LES50A48-1V2RANJ
RoHS Compliance
(7)
J = Pb-free (RoHS 6/6 compliant)
Pin Length Options
Blank = 0.188” (4.78 mm)
N = 0.145” (3.68 mm)
K = 0.110” (2.79 mm)
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
Remote ON/OFF Logic
Blank = Positive
R = Negative
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)
Output Voltage
1V2 = 1.2 Volts, 1V5 = 1.5 Volts etc.
Notes
1
di/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.
Start-up into resistive load.
This product is only for inclusion by professional installers within other
equipment and must not be operated as a stand alone product.
Recommended input fusing is up to 10 A HRC 200 V rated fuse.
Peak to peak measured with no external Pi filter. Significant reduction
possible with external filter. See Application Note 138 for further details.
6
7
8
2
3
4
5
Active 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.
TSE RoHS 5/6 (non Pb-free) compliant versions may be available on
special request, please contact your local sales representative for details.
NOTICE: 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.
File Name: eighth_brick.pdf Rev (07): 16 Nov 2005
Eighth-Brick Series
Single output
DC/DC CONVERTERS
High Current, High Efficiency, Low Profile
NEW Product
3
For the most current data and application support visit www.artesyn.com/powergroup/products.htm
2.30 (58.4)
2.000 (50.80)
0.145
±0.020
(3.68
±0.51)
0.300
(7.62)
0.300
(7.62)
1
8
7
6
5
4
ø
0.040
±0.002
(
ø
1.02
±0.05)
(6 pls)
DIMENSION OPTIONS
OPTION
CLEARANCE
±0.016 (0.41)
HEIGHT
+0.022 (0.56)
-0.030 (0.76)
0.300 (7.62)
0.340 (8.64)
0.90
(22.9)
TOP VIEW
2
3
0.150
(3.81)
0.150
(3.81)
A
E
HEIGHT
See Option Table
0.030 (0.76)
0.070 (1.78)
0.45
(11.4)
ø
0.062
±0.002
(
ø
1.57
±0.05)
(2 pls)
0.188 (4.78)
CLEARANCE
See Option Table
2.30 (58.4)
2.000 (50.80)
0.145
±0.020
(3.68
±0.51)
0.300
(7.62)
0.300
(7.62)
1
2
3
8
7
6
5
4
ø
0.058
±0.008
(
ø
1.47
±0.02)
(6 pls)
Ref IPC-2222 Level B
PIN CONNECTIONS
PIN NUMBER
1
FUNCTION
+Vin
ON/OFF
-Vin
-Vout
PIN NUMBER
5
6
7
8
FUNCTION
-Sense
Trim
+Sense
+Vout
0.90
(22.9)
0.150
(3.81)
0.150
(3.81)
2
Dimensions in Inches (mm)
Tolerances (unless otherwise specified)
x.xx
±0.02
(x.x
±0.5)
x.xxx
±0.010
(x.xx
±0.25)
0.45
(11.4)
ø
0.080
±0.008
(
ø
2.03
±0.02)
(2 pls)
Ref IPC-2222 Level B
3
4
RECOMMENDED HOLE PATTERN
Through-hole Mechanical Drawing, Dimension Options and Pinout Table
2.30
(58.4)
0.057±0.020
(1.45±0.51)
2.186
(55.52)
0.055 (1.40) x 0.105 (2.67)
(7 pls)
0.150
(3.81)
0.90
(22.9)
0.300
(7.62)
0.300
(7.62)
1
TOP VIEW
2
3
8
7
6
5
4
0.450±0.020
(11.43±0.51)
0.150
(3.81)
PIN CONNECTIONS
HEIGHT
0.28 (7.1)
PIN NUMBER
1
CLEARANCE
0.015 (0.38)
ø0.080±0.008
(ø2.03±0.02)
(2 pls)
Ref IPC-2222 Level B
2.30
(58.4)
2.186
(55.52)
0.057±0.020
(1.45±0.51)
1
TOP VIEW
0.300
(7.62)
2
3
0.145±0.020
(3.68±0.51)
2.000
(50.80)
8
7
6
5
4
0.067(1.70) x 0.118(3.00)
(8 pls)
FUNCTION
+Vin
ON/OFF
-Vin
-Vout
PIN NUMBER
5
6
7
8
FUNCTION
-Sense
Trim
+Sense
+Vout
2
3
4
ø0.058±0.008
(ø1.47±0.02)
(6 PLS)
Ref IPC-2222 Level B
0.150
(3.81)
Lead coplanarity within 0.006 [0.15] MAX
0.90
(22.9)
0.300
(7.62)
0.450±0.020
(11.43±0.51)
0.150
(3.81)
Dimensions in Inches (mm)
Tolerances (unless otherwise specified)
x.xx
±0.02
(x.x
±0.5)
x.xxx
±0.010
(x.xx
±0.25)
Surface-mount Mechanical Drawing and Pinout Table
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
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