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PDF ( 数据手册 , 数据表 ) E48SR12007

零件编号 E48SR12007
描述 Eighth Brick Bus Converter DC/DC Power Modules
制造商 Delta Electronics
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E48SR12007 数据手册, 描述, 功能
Delphi Series E48SR12007, 84W Eighth Brick
DC/DC Power Modules: 48V in, 12V/7A outwww.DataSheet4U.com
The Delphi Series E48SR12007 Eighth Brick, 48V input, single output,
isolated DC/DC converter is the latest offering from a world leader in
power systems technology and manufacturing Delta Electronics,
Inc. This product provides 84 watts of power with 92.0% efficiency in
an industry standard footprint. With creative design technology and
optimization of component placement, this converter possesses
outstanding electrical and thermal performances, as well as extremely
high reliability under highly stressful operating conditions. All Delphi
E48SR models are fully protected from abnormal input/output voltage,
current, temperature conditions and also meet all safety requirements
with basic insulation.
FEATURES
High efficiency: 92.0% @ 12V/7A
Size: 58.4mmx22.80mmx8.35mm
(2.30”x0.90”x0.33”)
Standard footprint
Industry standard pin out
2:1 Input voltage range
Fixed frequency operation
Input UVLO, Output OCP, OVP, OTP
2250V isolation and basic insulation
No minimum load required
ISO 9001, TL 9000, ISO 14001, QS9000,
OHSAS18001 certified manufacturing
facility
UL/cUL 60950 (US & Canada)
recognized, and TUV (EN60950) certified
CE mark meets 73/23/EEC and
93/68/EEC directive
OPTIONS
Positive On/Off logic
Short pin lengths
SMD pin
APPLICATIONS
Telecom/Datacom
Wireless Networks
Optical Network Equipment
Server and Data Storage
Industrial/Test Equipment
DATASHEET
DS_E48SR12007_03022007







E48SR12007 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 (hiccup mode).
The modules 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.
Over-Voltage Protection
The modules include an internal output over-voltage
protection circuit, which monitors the voltage on the
output terminals. If this voltage exceeds the
over-voltage set point, the module will shut down
(Hiccup mode). The modules will try to restart after
shutdown. If the fault condition still exists, the module
will shut down again. This restart trial will continue until
the fault condition is corrected.
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.
The module will try to restart after shutdown. If the
over-temperature condition still exists during restart, the
module will shut down again. This restart trial will
continue until the temperature is within specification.
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 logic high.
Positive logic turns the modules on during logic high and
off during 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 floating.
E48SR12007_03022007
Vi(+) Vo(+)
Sense(+)
ON/OFF
Sense(-)
Vi(-) Vo(-)
Figure 16: Remote on/off implementation
Remote Sense
Remote sense compensates for voltage drops on the
output by sensing the actual output voltage at the point
of load. The voltage between the remote sense pins
and the output terminals must not exceed the output
voltage sense range given here:
[Vo(+) – Vo(–)] – [SENSE(+) – SENSE(–)] 10% × Vout
This limit includes any increase in voltage due to
remote sense compensation and output voltage set
point adjustment (trim).
Vi(+) Vo(+)
Sense(+)
Contact
Resistance
Sense(-)
Vi(-) Vo(-)
ContacLtoasnsdesDistribution
Figure 17: Effective circuit configuration for remote sense
operation
If the remote sense feature is not used to regulate the
output at the point of load, please connect SENSE(+) to
Vo(+) and SENSE(–) to Vo(–) at the module.
The output voltage can be increased by both the
remote sense and the trim; however, the maximum
increase is the larger of either the remote sense or the
trim, not the sum of both.
When using remote sense and trim, the output voltage
of the module is usually increased, which increases the
power output of the module with the same output
current.
Care should be taken to ensure that the maximum
output power does not exceed the maximum rated
power.
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