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参数资料
| 型号： | DSIW2037 |
| 元件分类： | 电源模块 |
| 英文描述： | DC-DC REG PWR SUPPLY MODULE |
| 封装： | PLASTIC, SMD-12/24 |
| 文件页数： | 5/9页 |
| 文件大小： | 307K |
| 代理商： | DSIW2037 |
5
Design & Feature Considerations
Maximum Capacitive Load
The DSIW2000 series has limitation of maximum
connected capacitance at the output. The power
module may be operated in current limiting mode
during start-up, affecting the ramp-up and the startup
time.
Output Ripple Reduction
A good quality low ESR capacitor placed as close as
practicable across the load will give the best ripple and
noise performance.
To reduce output ripple, it is recommended to use
3.3uF capacitors at the output.
+Out
-Out
+Vin
-Vin
Load
DC Power
Source
+
-
Cout
Single Output
DC / DC
Converter
+Out
-Out
+Vin
-Vin
Load
DC Power
Source
+
-
Cout
Com.
Dual Output
DC / DC
Converter
Remote On/Off
The DSIW200 has positive remote on/off logic. Positive
logic remote on/off turns the module on during a logic
high voltage on the remote on/off pin, and off during a
logic low.
Remote on/off can be controlled by an external switch
between the on/off terminal and the -Vin terminal. The
switch can be an open collector or equivalent.
Vo(+)
Vo(-)
Vi(+)
Vi(-)
ON/OFF
Overcurrent Protection
To provide protection in a fault (output overload)
condition, the unit is equipped with internal current
limiting circuitry and can endure current limiting for an
unlimited duration. At the point of current-limit inception,
the unit shifts from voltage control to current control.
The unit operates normally once the output current is
brought back into its specified range.
Soldering and Cleaning Considerations
Post solder cleaning is usually the final board
assembly process before the board or system
undergoes electrical testing. Inadequate cleaning
and/or drying may lower the reliability of a power
module and severely affect the finished circuit board
assembly test. Adequate cleaning and/or drying is
especially important for un-encapsulated and/or open
frame type power modules. For assistance on
appropriate soldering and cleaning procedures, please
contact Delta’s technical support team.
Notes:
1. These power converters require a minimum output
load to maintain specified regulation (please see
page 6 for the suggested minimum load). Operation
under no-load conditions will not damage these
modules; however, they may not meet all
specifications listed above.
2. These DC/DC converters should be externally fused
at the front end for protection.
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