Datasheet
DS_DIM3R3400_08142013 E-mail: DCDC@delta.com.tw
http://www.deltaww.com/dcdc
P2
TECHNICAL SPECIFICATIONS
(T
A
=25°C, airflow rate=300 LFM, V
in
=-48Vdc, nominal Vout unless otherwise noted;)
PARAMETER
NOTES and CONDITIONS
DIM3R3400 (Standard)
Min.
Typ.
Max.
Units
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Continuous
-75
Vdc
Transient
1ms
-100
Vdc
Reverse polarity
No damage,Low current
+75
Vdc
Operating Ambient Temperature
-40
85
°C
Storage Temperature
-55
125
°C
ISOLATION
Input to SHELF_GND Voltage
1500
Vdc
Input to LOGIC_GND Voltage
2000
Vdc
MAIN INPUT (DUAL FEED) CHARACTERISTICS
Operation Input Voltage Range
-36
-75
V
Input UVLO
Turn-On Voltage Threshold
VRTN_OUT open load
27
Vdc
Turn-Off Voltage Threshold
VRTN_OUT open load
25
Vdc
Off Converter Input Current
Vin < UVLO voltage
35
mA
Maximum Input Current
Po=400W, 3.3V=0,Vin=-36 to -75V
12
A
Over Current Protection Setpiont
14
15.5
17
A
POWER & MAIN OUTPUT (-48V output)
Input Power, Maximum Allowable
400
W
Efficiency
Po=400W, 3.3V/5.0V no load,Vin=-48V
98.5
%
Efficiency
Po=400W, 3.3V/5.0V no load,Vin=-48V
98.2
%
Management Power, Maximum Deliverable
12
W
Module Standby Current
Pout=0W, 3.3V=0W, 5.0V=0W
Vin=-48V,
60
mA
Main Output External Output Filter Capacitance
80
680
F
HOT SWAP
Inrush Transient
Po=400W, Vin=-75V, 3.3V=0W, 5.0V=0W
2
A
INPUT A/B FEED LOSS / FUSE ALARM
Alarm ON Input Voltage Threshold
-36.4
-38.4
-40.4
V
Transistor Collector to Emitter Voltage
40
Vdc
Transistor Collector to Emitter Current
50
mA
Transistor Collector Saturation Voltage
0.2
0.4
V
HOLD UP CAPACITANCE INTERFACE
Hold-up Capacitor Voltage trim range
-50
-90
-95
V
Hold-up Capacitor Voltage Accuracy
-87.2
-90
-92.8
V
Hold-up Capacitor Charge Current
10
mA
Maxmum Hold-up Capacitance (C_HOLD)
1000
F
To initiate hold up ,Input Voltage Threshold
-32.4
-34.5
-36.4
V
To arm hold up ,Input Voltage Threshold
-32.4
-34.5
-36.4
V