LES25A48-1V2J Datasheet, PDF (1/3 Pages) Artesyn Technologies – DC/DC CONVERTERS

Eighth-Brick Series
Single output
DC/DC CONVERTERS High Current, High
y, Low
• 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
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.
All
are typical at nominal input, full load at 25 °C ambient unless otherwise stated
1
NEW Product
2 YEAR WARRANTY
SPECIFICATIONS
OUTPUT SPECIFICATIONS
Voltage adjus tability
80% to 110%
Minimum load
0%
Overshoot
At turn-on and turn-o None
Unders hoot
None
Transient response
(S ee Note 1)
60 mV to 150 mV typ. deviation
20 µs recovery
INPUT SPECIFICATIONS
Input voltage range
24 V nominal
48 V nominal
18-36 Vdc
36-75 Vdc
Input current
No load
Remote OFF
50 mA
5 mA
Active high remote ON/OFF
Logic compatibility
ON
OFF
Open collector ref to -input
Open circuit or >2.4 Vdc
<0.4 Vdc
Undervoltage Lockout
24 Vin
48 Vin
Power up
Power down
Power up
Power down
17.5 V (typ.)
16.5 V (typ.)
35.5 V (typ.)
33.5 V (typ.)
48 Vin Start-up time
(See Note 2)
Power up
Remote ON/OFF
15 ms (typ.)
15 ms (typ.)
EMC CHARACTERISTICS
Immunity:
ESD air enclosure
Radiated 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
Input/output
2250 Vdc
S witching frequency
F ix ed
480 kHz
Approvals and
s tandards
(See Note 3)
EN60950-1 VDE
UL/cUL 60950
Material flammability
U L 9 4 V- 0
Weight
21 g (0.73 oz)
MTBF
Telcordia Tech SR-332 4,034,120 hours
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
Operating ambient.
temperature
Non-operating
-40 °C to +85 °C
-55 °C to +125 °C
PROTECTION
S hortcircuit
O ve rvolta ge
T herma l
C ontinuous
N on- la tc hing
125 ºC hot s pot temperature with
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
File Name: eighth_brick.pdf Rev (07): 16 Nov 2005