Q48SB9R650NRFA Datasheet, PDF (2/12 Pages) Delta Electronics, Inc. – Delphi Series Q48SB, 500W Bus Converter DC/DC Power Modules: 48V in, 9.6V/55A out

TECHNICAL SPECIFICATIONS
(T_A=25°C, airflow rate=300 LFM, V_in=48Vdc, nominal Vout unless otherwise noted.)
PARAMETER
NOTES and CONDITIONS
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Continuous
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
Input Over-Voltage Lockout
Turn-Off Voltage Threshold
Turn-On Voltage Threshold
Lockout Hysteresis Voltage
Maximum Input Current
No-Load Input Current
Off Converter Input Current
Inrush Current(I²t)
Input Reflected-Ripple Current
Internal input filter component value
Recommend external input capacitor for system stability
Capacitance
ESR
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 Power Range
38V<Vin≤42V
42V<Vin≤55V
Output DC Powert-Limit Inception
38V≤Vin≤55V
Current share accuracy (2 units in parallel)
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
Single module operation
Single module operation
2 pcs Parallel module operation
2 pcs Parallel module operation
EFFICIENCY
55A
50A
33A
ISOLATION CHARACTERISTICS
Input to Output
Isolation Resistance
Isolation Capacitance
FEATURE CHARACTERISTICS
Switching Frequency
ON/OFF Control for single module operation
Negative Remote On/Off logic
Logic Low (Module On)
Logic High (Module Off)
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)
GENERAL SPECIFICATIONS
MTBF
Weight (open frame)
Over-Temperature Shutdown
Refer to Fig.17 for the measuring point
100% Load, 38V Vin
With 100uF external input capacitor
P-P thru 12µH inductor, 5Hz to 20MHz
L/C
100KHz -40oC to 100oC
Vin=48V, Io=no load, Ta=25°C
Io=Io,min to Io,max
Vin=38V to 55V
Tc=-40°C to 100°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% lower
% of rated output current
48V, 10µF Tan & 1µF Ceramic load cap, 1A/µs
50% Io.max to 75% Io.max
75% Io.max to 50% Io.max
Start up with 20A Load
Start up with 55A Load
Start up with 20A Load
Start up with 110A Load
Ion/off at Von/off=0.0V
Logic High, Von/off=15V
Io=80% of Io, max; Ta=25°C; 300LFM airflow
Refer to Fig.17 for the measuring point
Q48SB9R650NRFA
Min.
Typ.
Max.
Units
57
-40
124
-55
125
1500
36
48
57
32.5
34
35.5
30.5
32
33.5
2
59
60.5
62
57
58.5
60
2
13.5
80
200
12
15
1
20
40
0.47/4.4
47
100
0.1
0.2
9.6
400
600
3.8
400
6.8
11.5
80
120
25
50
0
480
0
500
120%
130%
10
Vdc
°C
°C
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
A
mA
mA
A²s
mA
uH/uF
uF
ohm
Vdc
mV
V
mV
V
mV
mV
W
W
W
%
300
mV
300
mV
200
us
35
ms
35
ms
10000
µF
5000
µF
10000
µF
8000
µF
95.4
96.4
%
95.8
96.8
%
95.8
96.8
%
1500
Vdc
10
MΩ
1000
pF
130
kHz
-0.7
0.8
V
2
18
V
-0.7
0.8
V
2
18
V
0.25
0.3
mA
50
uA
TBD
54
129
M hours
grams
°C
DS_Q48SB9R650_07102006
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