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TECHNICAL SPECIFICATIONS
(T
=25°C, airflow rate=300 LFM, V
A
PARAMETER
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Continuous
Transient (100ms, non-operating)
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
2
Inrush Current (I
t)
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
ISOLATION CHARACTERISTICS
Input to Output
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 (not available on Exxx code)
Output Voltage Remote Sense Range (not available on Exxx)
Output Over-Voltage Protection
GENERAL SPECIFICATIONS
MTBF
Weight
Over-Temperature Shutdown
DS_Q48SP12017_05302008
=48Vdc, nominal Vout unless otherwise noted; mounted on board.)
in
NOTES and CONDITIONS
Refer to Figure 22 for the measuring point
P-P thru 12µH inductor, 5Hz to 20MHz
over sample load, line and temperature
Full Load, 1µF ceramic, 10µF tantalum
Full Load, 1µF ceramic, 10µF tantalum
48V, 10µF Tan & 1µF Ceramic load cap, 0.1A/µs
Full load; 5% overshoot of Vout at startup
Across Pins 9 & 5, Pout <= max rated power
Over full temp range; % of nominal Vout
Refer to Figure 22 for the measuring point
100ms
100% Load, 36Vin
120 Hz
Vin=48V, Io=Io.max, Ta=25C
Io=Io,min to Io,max
Vin=36V to 75V
Ta=-40C to135C
5Hz to 20MHz bandwidth
Output Voltage 10% Low
50% Io,max to 75% Io,max
75% Io,max to 50% Io,max
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
Pout <= max rated power
Io=80% of Io, max; Ta=25°C
Q48SP12017NRFA
Min.
Typ.
Max.
Units
-0.5
80
100
-40
120
-40
105
2250
36
48
75
33
34
36
30
32
34
1
2
3
7
140
11
1
10
50
11.8
12
12.2
6
24
6
24
32
60
11.6
12.4
150
50
0
18
19
21
24
300
300
400
8
6
0
`1500
92.5
2250
10
1000
300
0
1
2
15
1
50
-20
+10
0.5
13.5
16.5
2.40
M hours
45
grams
130
Vdc
Vdc
°C
°C
Vdc
Vdc
Vdc
Vdc
Vdc
A
mA
mA
2
A
S
mA
dB
Vdc
mV
mV
mV
V
mV
mV
A
A
mV
mV
uS
mS
mS
µF
%
Vdc
MΩ
pF
kHz
V
V
mA
uA
%
V
V
°C
2
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