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參數資料
| 型號： | LES25A48-2V5REJ |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 封裝： | ROHS COMPLIANT |
| 文件頁數： | 1/23頁 |
| 文件大小： | 763K |
| 代理商： | LES25A48-2V5REJ |
DC/DC CONVERTERS
High Current, High Efficiency, Low Profile
1
2 YEAR WARRANTY
NEW Product
All specifications 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 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 C to +85 C
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
Single output
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.
EMC CHARACTERISTICS
Immunity:
ESD air enclosure
EN61000-4-2 8 kV/6 kV(O/P within spec.)
Radiated field 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
Switching frequency
Fixed
480 kHz
Approvals and
(See Note 3)
EN60950-1 VDE
standards
UL/cUL 60950
Material flammability
UL94V-0
Weight
21 g (0.73 oz)
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
Shortcircuit
Continuous
Overvoltage
Non-latching
Thermal
125 C hot spot temperature with
automatic recovery
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
Patent No. 6,765,810
Other Patents Pending
OUTPUT SPECIFICATIONS
Voltage adjustability
80% to 110%
Minimum load
0%
Overshoot
At turn-on and turn-off
None
Undershoot
None
Transient response
60 mV to 150 mV typ. deviation
(See Note 1)
20 s recovery
INPUT SPECIFICATIONS
Input voltage range
24 V nominal
18-36 Vdc
48 V nominal
36-75 Vdc
Input current
No load
50 mA
Remote OFF
5 mA
Active high remote ON/OFF
Logic compatibility
Open collector ref to -input
ON
Open circuit or >2.4 Vdc
OFF
<0.4 Vdc
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.)
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