Q48SK12025NRFA Datasheet, PDF (2/13 Pages) Delta Electronics, Inc. – Delphi Series Q48SK, Quarter Brick Family DC/DC Power Modules: 36~75V in, 12V/25A out, 300W

TECHNICAL SPECIFICATIONS
(TA=25°C, airflow rate=300 LFM, Vin=48Vdc, nominal Vout unless otherwise noted;
PARAMETER
NOTES and CONDITIONS
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Continuous
Transient
Operating Hot Spot Temperature (Without heat spreader)
Operating Case Temperature (With heat spreader)
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
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
Settling Time (within 1% Vout nominal)
Turn-On Transient
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
Isolation Resistance
Isolation Capacitance
FEATURE CHARACTERISTICS
Switching Frequency
ON/OFF Control, Negative Remote On/Off logic
Logic Low (Module On)
Logic High (Module Off)
ON/OFF Control, Positive Remote On/Off logic
Logic Low (Module Off)
Logic High (Module On)
ON/OFF Current (for both remote on/off logic)
Leakage Current (for both remote on/off logic)
Output Over-Voltage Protection
GENERAL SPECIFICATIONS
MTBF(with heat spreader)
Weight(without heat spreader)
Weight(with heat spreader)
Over-Temperature Shutdown ( Without heat spreader)
Over-Temperature Shutdown (With heat spreader)
100ms
Refer to figure 18 for measuring point
Refer to figure 20 for measuring point
100% Load, 36Vin
Vin=48V, Io=0A
Vin=48V, Io=0A
P-P thru 12µH inductor, 5Hz to 20MHz
120 Hz
Vin=48V, Io=0, Tc=25°C
Vin=48V, Io=Io,min to Io,max
Vin=36V to 75V, Io=Io min
Vin=48V, Tc=-40°C to 85°C
over sample load, line and temperature
5Hz to 20MHz bandwidth
Full Load, 1µF ceramic, 10µF tantalum
Full Load, 1µF ceramic, 10µF tantalum
Output Voltage 10% Low
48V, 10µF Tan & 1µF Ceramic load cap, 0.1A/µs
50% Io.max to 75% Io.max
75% Io.max to 50% Io.max
Full load;
Vin=48V
Vin=48V
Von/off at Ion/off=1.0mA
Von/off at Ion/off=0.0 µA
Von/off at Ion/off=1.0mA
Von/off at Ion/off=0.0 µA
Ion/off at Von/off=0.0V
Logic High, Von/off=15V
Over full temp range; % of nominal Vout
Io=100% of Io, max; Tc=40°C;Airflow=600LFM
Refer to figure 18 for measuring point
Refer to figure 20 for measuring point
Q48SK12025 (Standard)
Min.
Typ.
Max.
Units
80
Vdc
100
Vdc
-40
118
°C
-40
112
°C
-55
125
°C
2250
Vdc
36
48
75
Vdc
32.0
34.0
36.0
Vdc
30.0
32.0
34.0
Vdc
2
Vdc
11
A
160
mA
10
mA
1
A²s
10
mA
-30
dB
11.4
11.7
12.0
Vdc
30
80
mV
50
mV
100
mV
11.2
12.0
Vdc
120
mV
50
mV
0
25
A
110
140
%
300
mV
300
mV
300
µs
70
ms
80
ms
20000
µF
95.2
%
94.7
%
2250
Vdc
10
MΩ
1000
pF
160
kHz
0
0.8
V
2
50
V
0
0.8
V
2
50
V
1
mA
50
uA
115
140
%
2.6
M hours
50.5
grams
65.5
grams
126
°C
122
°C
DS_Q48SK12025_07012010
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