Q48SE12025NRFA Datasheet, PDF (2/14 Pages) Delta Electronics, Inc. – Delphi Series Q48SE, Quarter Brick Family DC/DC Power Modules 38~75V in, 11.8V/25A out, 300W

TECHNICAL SPECIFICATIONS
(TA=25°C, airflow rate=300 LFM, Vin=48Vdc, nominal Vout unless otherwise noted;
PARAMETER
NOTES and CONDITIONS
Q48SE12025 (Standard)
Min.
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Continuous
Transient
100ms
Operating Ambient Temperature
-40
Storage Temperature
-55
Input/Output Isolation Voltage
INPUT CHARACTERISTICS
Operating Input Voltage
38
Input Under-Voltage Lockout
Turn-On Voltage Threshold
32.0
Turn-Off Voltage Threshold
30.0
Lockout Hysteresis Voltage
Maximum Input Current
100% Load, 38Vin
No-Load Input Current
Vin=48V, Io=0A
Off Converter Input Current
Inrush Current (I²t)
Vin=48V, Io=0A
Input Reflected-Ripple Current
P-P thru 12µH inductor, 5Hz to 20MHz
Input Voltage Ripple Rejection
120 Hz
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Vin=48V, Io=0, Tc=25°C
11.67
Output Voltage Regulation
Over Load
Vin=48V, Io=Io,min to Io,max
Over Line
Vin=38V to 75V, Io=Io min
Over Temperature
Vin=48V, Tc=-40°C to 85°C
Total Output Voltage Range
over sample load, line and temperature
11.44
Output Voltage Ripple and Noise
5Hz to 20MHz bandwidth
Peak-to-Peak
Full Load, 1µF ceramic, 10µF tantalum
RMS
Full Load, 1µF ceramic, 10µF tantalum
Operating Output Current Range
0
Output DC Current-Limit Inception
Output Voltage 10% Low
110
DYNAMIC CHARACTERISTICS
Output Voltage Current Transient
48V, 10µF Tan & 1µF Ceramic load cap, 0.1A/µs
Positive Step Change in Output Current
50% Io.max to 75% Io.max
Negative Step Change in Output Current
75% Io.max to 50% Io.max
Settling Time (within 1% Vout nominal)
Turn-On Transient
Start-Up Time, From On/Off Control
Start-Up Time, From Input
Maximum Output Capacitance
Low ESR CAP (OSCON), 100% load;
EFFICIENCY
100% Load
Vin=48V
60% Load
Vin=48V
ISOLATION CHARACTERISTICS
Input to Output
Isolation Resistance
10
Isolation Capacitance
FEATURE CHARACTERISTICS
Switching Frequency
ON/OFF Control, Negative Remote On/Off logic
Logic Low (Module On)
Von/off at Ion/off=1.0mA
0
Logic High (Module Off)
Von/off at Ion/off=0.0 µA
2
ON/OFF Control, Positive Remote On/Off logic
Logic Low (Module Off)
Von/off at Ion/off=1.0mA
0
Logic High (Module On)
Von/off at Ion/off=0.0 µA
2
ON/OFF Current (for both remote on/off logic)
Ion/off at Von/off=0.0V
Leakage Current (for both remote on/off logic)
Logic High, Von/off=15V
Output Over-Voltage Protection
Over full temp range; % of nominal Vout
115
GENERAL SPECIFICATIONS
MTBF(with heat spreader)
Io=100% of Io, max; Tc=40°C;Airflow=600LFM
Weight(without heat spreader)
Weight(with heat spreader)
Over-Temperature Shutdown ( Without heat spreader)
Refer to Figure 18 for Hot spot 1 location
(48Vin,80% Io, 200LFM,Airflow from Vin+ to Vin-)
Over-Temperature Shutdown (With heat spreader)
Refer to Figure 20 for Hot spot 2 location
(48Vin,80% Io, 200LFM,Airflow from Vin+ to Vin-)
Over-Temperature Shutdown ( NTC resistor )
Refer to Figure 18 for NTC resistor location
Note: Please attach thermocouple on NTC resistor to test OTP function, the hot spots’ temperature is just for reference.
Typ.
Max.
Units
80
Vdc
100
Vdc
85
°C
125
°C
2250
Vdc
48
75
Vdc
34.0
36.0
Vdc
32.0
34.0
Vdc
2
Vdc
11
A
160
mA
10
mA
1
A²s
10
mA
-30
dB
11.8
11.92
Vdc
±30
±80
mV
±50
mV
±100
mV
12.16
Vdc
120
mV
50
mV
25
A
140
%
300
300
300
70
80
95.2
94.7
1000
160
2.6
50.5
65.5
128
122
127
6000
2250
0.8
50
0.8
50
1
50
140
mV
mV
µs
ms
ms
µF
%
%
Vdc
MΩ
pF
kHz
V
V
V
V
mA
uA
%
M hours
grams
grams
°C
°C
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