![](http://datasheet.mmic.net.cn/30000/LES20A48-3V3RAJ_datasheet_2303633/LES20A48-3V3RAJ_2.png)
Rev.09.10.07
eighth-brick series
2 of 31
TechnicalReferenceNote-EIGHTH-BRICKSERIES
Single Output Value Products
Absolute Maximum Ratings
Input Characteristics
Stresses in excess of the maximum ratings can cause permanent damage to the device. Operation of the device is not implied at these or any other
conditions in excess of those given in the specification. Exposure to absolute maximum ratings can adversely affect device
reliability.
All specifications are typical at nominal input Vin = 48 V and full rated resistive load at 25 C ambient unless otherwise specified.
Characteristic
Symbol
Min
Typ
Max
Units
Notes and Conditions
Input voltage - operating
Vin (oper)
36
48
75
Vdc
Input current - no load
lin
50
mAdc
Vin (min) - Vin (max), enabled
Input current - Quiescent
lin (off)
6
mAdc
Converter disabled
Inrush current (i2t)
linrush
0.01
A2s
Inrush current ratio
It/Im
22
Input ripple rejection
50
dB
Frequency <1 kHz
Input fuse
10
A
Slow Blow/Antisurge HRC
recommended 200 V Rating.
See Application Note 138
Turn On/Off
Characteristic
Symbol
Min
Typ
Max
Units
Notes and Conditions
Input voltage - turn on
Vin (on)
35.5
36
Vdc
Input voltage - turn off
Vin (off)
33
33.5
Vdc
Turn on delay - enabled,
Tdelay
10
15
ms
With the Remote ON/OFF signal
then power applied
(power)
asserted, time from when Vin >
Vin (oper) until Vout is within
total regulation band
Turn on delay - power
Tdelay
10
15
ms
With Vin = Vin (nom), then
applied, then enabled
(enable)
Remote ON/OFF asserted,
time until Vo is within total error
band
Rise time
Trise
2
3
ms
From 10% to 90%, full resistive
load, no external capacitance
Characteristic
Symbol
Min
Typ
Max
Units
Notes and Conditions
Input voltage - continuous
Vin (cont)
-0.3
75
V dc
Vin(+) - Vin(-)
Input voltage - peak/surge
Vin (peak)
-0.3
100
V dc
Transients of 100 ms or less,
in duration
Input voltage - remote pin
Vrem (peak)
-0.3
75
V dc
Peaks of any duration
Operating temperature
Top
-40
85
C
Measured at ambient
Storage temperature
Tstorage
-55
125
C
Output power (LES25A48-1V2J)
Pout (max)
30
W
Output power (LES25A48-1V5J)
Pout (max)
37.5
W
Output power (LES25A48-1V8J)
Pout (max)
45
W
Output power (LES20A48-2V5J)
Pout (max)
50
W
Output power (LES20A48-3V3J)
Pout (max)
66
W
Output power (LES10A48-5V0J)
Pout (max)
50
W