Delta Electronics Power Supply Series Q48SB User Manual

FEATURES  
High efficiency: 96% @ 12V/20A, 25A  
95.5% @ 10.8V/28A  
Standard footprint: 57.9x 36.8x 12.7mm  
(2.28”x1.45”x0.50”)  
Industry standard pin out  
Fully protected: UVLO, OTP, OCP, OVP  
2250V isolation  
Basic insulation  
No minimum load required  
ISO 9001, TL 9000, ISO 14001, QS 9000,  
OHSAS 18001 certified manufacturing  
facility  
UL/cUL 60950 (US & Canada), and TUV  
(EN60950) certified  
CE mark meets 73/23/EEC and 93/68/EEC  
directives  
Delphi Series Q48SB, 300W Bus Converter  
DC/DC Power Modules: 48V in, 12V/25A out  
OPTIONS  
The Delphi Series Q48SB, 48V input, single output, quarter brick,  
300W bus converters are 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 Delphi Series Q48SB operates from a nominal 48V  
input and provides up to 300W of power or 28A of output current in  
an industry standard quarter brick footprint. The Q48SB product  
currently supports two input ranges: the Q48SB120 features an input  
voltage range of 42V to 53V and provides an unregulated output of  
12V at 20A or 25A. The Q48SB108 features a wider input voltage  
range of 36V to 60V and provides an unregulated output of 10.8V at  
up to 28A. Typical efficiency for the 12V/25A module is 96%. 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.  
Positive On/Off logic  
Short pin lengths  
Heatsink available for extended  
operation  
APPLICATIONS  
Datacom / Networking  
Wireless Networks  
Optical Network Equipment  
Server and Data Storage  
Industrial/Testing Equipment  
DATABRIEF  
DB_Q48SB_10202006  
1
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