Q48DW3R312NRFA Datasheet, PDF (2/14 Pages) Delta Electronics, Inc. – Delphi Series Q48DW, 45W Quarter Brick, Dual Output DC/DC Power Modules: 1.2V/13A and 3.3V/8A

TECHNICAL SPECIFICATIONS (T_A=25°C, airflow rate=200 LFM, V_in=48Vdc, nominal Vout unless otherwise noted.)
PARAMETER
NOTES and CONDITIONS
Q48DW3R312NRFA
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Continuous
Transient (100ms)
Operating Temperature
Storage Temperature
Input/Output Isolation Voltage
INPUT CHARACTERISTICS
Operating Input Voltage
Input Under-Voltage Lockout
Turn-On Voltage Threshold
Turn-Off Voltage Threshold
Lockout Hysteresis Voltage
Maximum Input Current
No-Load Input Current
Off Converter Input Current
Inrush Current(I²t)
Input Reflected-Ripple Current
Input Voltage Ripple Rejection
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Output Voltage Regulation
Over Load
Over Line
Cross Regulation
Over Temperature
Total Output Voltage Range
Output Voltage Ripple and Noise
Peak-to-Peak
RMS
Operating Output Current Range
Output DC Current-Limit Inception
DYNAMIC CHARACTERISTICS
Output Voltage Current Transient
Positive Step Change in Output Current
Negative Step Change in Output Current
Cross dynamic
Settling Time (within 1% Vout nominal)
Turn-On Transient
Delay Time, From On/Off Control
Delay Time, From Input
Start-up Time, From On/Off Control
Start-up Time, From Input
Maximum Output Capacitance
EFFICIENCY
100% Load
60% Load
ISOLATION CHARACTERISTICS
Input to Output
Input to Case
Output to Case
Isolation Resistance
Isolation Capacitance
FEATURE CHARACTERISTICS
Switching Frequency
ON/OFF Control, (Logic Low-Module ON)
Logic Low
Logic High
ON/OFF Current
Leakage Current
Output Voltage Trim Range
Output Boltage Remoote Sense Range
Output Over-Voltage Protection
GENERAL SPECIFICATIONS
MTBF
Weight
Over-Temperature Shutdown
<100ms
Refer to Figure 27 for measuring point
<1 minute
Min.
-40
-55
1500
36
33
31
1
P-P thru 12µH inductor, 5Hz to 20MHz
120Hz
Vin=48V, Io=Io.max, Tc=25℃
Vout 1
Vout 2
Io1=Io, min to Io, max, Io2=0A
Vout 1
Io2=Io, min to Io, max, Io1=0A
Vout 2
Vin=36V to 75V,Io1=Io2=full load
Vout 1
Vout 2
Worse Case
Tc=-40℃ to 110℃
Over sample load, line and temperature
5Hz to 20MHz bandwidth
Io1, Io2 Full Load, 1µF ceramic, 10µF tantalum
Vout 1
Vout 2
Io1, Io2 Full Load, 1µF ceramic, 10µF tantalum
Vout 1
Vout 2
Vout 1
Vout 2
Vout 1
Vout 2
48V, 10µF Tan & 1µF Ceramic load cap, 0.1A/µs
Iout1and Iout2 from 50% Io, max to 75% Io, max
Vout 1
Vout 2
Iout2 and Iout1 from 75% Io, max to 50% Io, max
Vout 1
Vout 2
1.200
3.300
0
0
14.5
9.5
Full load; 5% overshoot of Vout at startup
Vout 1
Vout 2
Iout1, Iout2 full load, 48vdc Vin
Iout1, Iout2 60% of full load, 48vdc Vin
<1 minute
1500
10
Von/off at Ion/off=1.0mA
0
Von/off at Ion/off=0.0 µA
Ion/off at Von/off=0.0V
Logic High, Von/off=15V
Just trim Vout1, Pout ≦ max rated power
-10
No Remote Sense Function
Over full temp range; %of nominal Vout
120
Io=80% of Io, max; Ta=25°C
Refer to Figure 27 for measuring point
Typ.
Max.
80
100
118
125
48
34
32
2
40
5
0.015
5
66
1.240
3.330
±5
±3
±5
±15
±30
30
30
15
15
75
35
33
3
1.8
60
10
10
1.260
3.360
±15
±10
±15
±50
±85
50
50
30
30
13
8
Units
Vdc
Vdc
°C
°C
Vdc
Vdc
Vdc
Vdc
Vdc
A
mA
mA
A²s
mA
dB
Vdc
mV
mV
mV
mV
mV
mV
mV
A
A
100
100
mV
100
100
mV
100
mV
100
us
5
ms
5
ms
10
ms
10
ms
10000
5000
µF
85.3
%
86.5
%
Vdc
MΩ
2000
pF
300
kHz
0.8
V
18
V
1
mA
1
mA
+10
%
135
150
%
2.69
M hours
25
grams
120
°C
DS_Q48DW3R312_07202006
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