Data Sheet
ESTW025A0F Series Eighth-Brick Power Modules
36–75Vdc Input; 3.3Vdc Output; 25A Output
October 11, 2011
Feature Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions. See Feature Descriptions for additional information.
Parameter
Device
Symbol
Min
Typ
Max
Unit
Remote On/Off Signal Interface
(VIN=VIN, min to VIN, max ; open collector or equivalent,
Signal referenced to VIN- terminal)
Negative Logic: device code suffix “1”
Logic Low = module On, Logic High = module Off
Positive Logic: No device code suffix required
Logic Low = module Off, Logic High = module On
Logic Low - Remote On/Off Current
All
All
All
All
Ion/off
Von/off
Von/off
Ion/off
0.15
0.6
mA
Vdc
Vdc
μA
-0.7
2.4
Logic Low - On/Off Voltage
Logic High Voltage – (Typ = Open Collector)
Logic High maximum allowable leakage current
Turn-On Delay1 and Rise Times
15.0
25
(IO=IO, max , VIN=VIN, nom, TA = 25oC)
Case 1: Input power is applied for >1 second and then
the On/Off input is set to ON (Tdelay = time from instant
All
All
Tdelay
―
12
20
―
―
msec
msec
On/Off signal is ON until VO = 10% of VO, set
)
Case 2: On/Off input is set to Logic Low (Module
ON) and then input power is applied (Tdelay = time
Tdelay
―
―
at which VIN = VIN, min until Vo=10% of VO,set
Output voltage Rise time (time for Vo to rise from 10%
of Vo,set to 90% of Vo, set
)
All
All
Trise
4
―
msec
)
Output voltage overshoot – Startup
IO= IO, max; VIN=VIN, min to VIN, max, TA = 25 oC
Prebias Output Load Performance:
―
5
% VO, set
Output Start up characteristic
All
All
All
All
All
All
All
Monotonic
-15
Back Bias current drawn from output (Module Enabled)
Remote Sense Range
mAdc
% VO, set
% VO, set
Vdc
VSENSE
10
+10
5.1
Output Voltage Adjustment Range
Output Overvoltage Protection (CO=470μF)2
Overtemperature Protection – Hiccup Auto Restart
Input Undervoltage Lockout
Turn-on Threshold
-20
3.9
VO, limit
Tref
125
OC
VUVLO
34.0
32.0
2.0
35.5
Vdc
Vdc
Vdc
30.5
1.0
Turn-off Threshold
Hysteresis
1.
2.
The module has an adaptable extended Turn-On Delay interval, Tdelay, of 25mS. The extended Tdelay will occur when the module restarts
following the rapid cycling of Vin from normal levels to less than the Input Undervoltage Lockout (which causes module shutdown), and
then back to normal.
The module requires a minimum of 470 μF external output capacitor to prevent shutdown during full load to no load transients and to avoid
exceeding the OVP maximum limits during startup into open loop fault conditions.
LINEAGE POWER
4
LINEAGEPOWER [ LINEAGE POWER CORPORATION ]
