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Delta Electronics
Delta Electronics


Q48SB9R650NNFA

DC/DC Power Modules



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Q48SB9R650NNFA pdf
Delphi Series Q48SB, 500W Bus Converter
DC/DC Power Modules: 48V in, 9.6V/55A outwww.DataSheet4U.com
The Delphi Series Q48SB, 48V input, single output, quarter brick, 500W
bus converter is the latest offering from a world leader in power systems
technology and manufacturing -- Delta Electronics, Inc. This product
family supports intermediate bus architectures and powers multiple
downstream non-isolated point-of-load (POL) converters. The
Q48SB9R6 (5:1) operates from a nominal 48V input and provides up to
500W of power or up to 63A (@ 38Vin) of output current in an industry
standard quarter brick footprint. The Q48SB 5:1 bus converter operates
with 500W constant output power, hence when input voltage drops, the
output current will increase accordingly. Typical efficiency for the
9.6V/50A output is 96.8%. With optimized component placement,
creative design topology, and numerous patented technologies, the
Q48SB bus converter delivers outstanding electrical and thermal
performance. An optional heatsink is available for harsh thermal
requirements.
FEATURES
High Efficiency: 96.8% @9.6V/50A
Standard footprint: 58.4 x 36.8 x12.3mm
(2.30”x1.45”x0.48’’)
Industry standard pinout
Input OVP, UVLO; output OCP and OTP
1500V isolation
Basic insulation
Monotonic startup into normal load and
pre-bias loads
No minimum load required
Constant 500W output power
Parallelable for higher power output
ISO 9001, TL 9000, ISO 14001, QS9000,
OHSAS18001 certified manufacturing
facility
UL/cUL 60950 (US & Canada), and TUV
(EN60950) pending
CE mark Pending
OPTIONS
Positive On/Off logic
Heatspreader available for
extended operation
Latch mode output OCP and OTP
APPLICATIONS
Datacom / Networking
Wireless Networks
Optical Network Equipment
Server and Data Storage
Industrial/Testing Equipment
DATASHEET
DS_Q48SB9R650_07102006



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Q48SB9R650NNFA pdf
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
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<Vin42V
42V<Vin55V
Output DC Powert-Limit Inception
38VVin55V
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
-40
-55
36
32.5
30.5
59
57
80
47
0.1
6.8
0
0
48
34
32
2
60.5
58.5
2
12
20
0.47/4.4
100
0.2
9.6
400
80
25
120%
57
124
125
1500
57
35.5
33.5
62
60
13.5
200
15
1
40
600
3.8
400
11.5
120
50
480
500
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
%
95.4
95.8
95.8
10
96.4
96.8
96.8
1000
130
300
300
200
35
35
10000
5000
10000
8000
1500
mV
mV
us
ms
ms
µF
µF
µF
µF
%
%
%
Vdc
M
pF
kHz
-0.7 0.8 V
2 18 V
-0.7 0.8
2 18
0.25
0.3
50
V
V
mA
uA
TBD
54
129
M hours
grams
°C
DS_Q48SB9R650_07102006
2



Part Number Q48SB9R650NNFA
Description DC/DC Power Modules
Maker Delta Electronics - Delta Electronics
Total Page 12 Pages
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