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Positive On/Off logic
Heatsink available for extended
operation
OTP and OCP mode (Auto restart
or latch)
PRELIMINRY DATABRIEF
DB_Q48SB12020NVFA_08312007
Delphi Series Q48SB, 240W Bus Converter
DC/DC Power Modules: 48V in, 12V/20A out
The Delphi Series Q48SB, 48V input, single output, vertically
mounted quarter brick, 240W 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 and devices. The Delphi Series Q48SB
operates from a nominal 48V input and provides up to 240W of
power or 20A of output current in an industry standard vertically
mounted quarter brick footprint. Typical efficiency for the 12V/20A
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.
FEATURES
Input voltage range: 38V~55V
High efficiency: 96.0% @ 12V/20A
Size: 63.5mm x 31.8mm x 11.4mm
(2.50” x 1.25” x 0.45”)
Industry standard pinout
Fully protected: Input UVLO, OVP, Output
OCP and OTP
Parallelable for higher output power
2250V isolation
Basic insulation
Monotonic startup
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) - pending
CE mark meets 73/23/EEC and 93/68/EEC
- pending
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APPLICATIONS
Datacom / Networking
Wireless Networks
Optical Network Equipment
Server and Data Storage
Industrial/Testing Equipment