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PDF ( 数据手册 , 数据表 ) Q48SB9R650NNFA

零件编号 Q48SB9R650NNFA
描述 DC/DC Power Modules
制造商 Delta Electronics
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Q48SB9R650NNFA 数据手册, 描述, 功能
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







Q48SB9R650NNFA pdf, 数据表
FEATURES DESCRIPTIONS
Over-Current Protection
The modules include an internal output over-current
protection circuit, which will endure current limiting for an
unlimited duration during output overload. If the output
current exceeds the OCP set point, the modules will
automatically shut down, and enter latch mode or hiccup
mode, which is optional.
For hiccup mode, the module will try to restart after
shutdown. If the overload condition still exists, the
module will shut down again. This restart trial will
continue until the overload condition is corrected.
For latch mode, the module will latch off once it
shutdown. The latch is reset by either cycling the input
power or by toggling the on/off signal for one second.
Over-Temperature Protection
The over-temperature protection consists of circuitry that
provides protection from thermal damage. If the
temperature exceeds the over-temperature threshold the
module will shut down, and enter latch mode or
auto-restart mode, which is optional.
For auto-restart mode, the module will monitor the
module temperature after shutdown. Once the
temperature is within the specification, the module will be
auto-restart,
For latch mode, the module will latch off once it
shutdown. Either cycling the input power or toggling the
on/off signal for one second can reset the latch.
Remote On/Off
The remote on/off feature on the module can be either
negative or positive logic. Negative logic turns the
module on during a logic low and off during a logic high.
Positive logic turns the modules on during a logic high
and off during a logic low.
Remote on/off can be controlled by an external switch
between the on/off terminal and the Vi(-) terminal. The
switch can be an open collector or open drain.
For negative logic if the remote on/off feature is not
used, please short the on/off pin to Vi(-). For positive
logic if the remote on/off feature is not used, please
leave the on/off pin to floating.
Vi(+)
Vo(+)
ON/OFF
Vi(-) Vo(-)
Figure 15: Remote on/off implementation
R
Load
DS_Q48SB9R650_07102006
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