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L36SA12004NRFA 参数 Datasheet PDF下载

L36SA12004NRFA图片预览
型号: L36SA12004NRFA
PDF下载: 下载PDF文件 查看货源
内容描述: 德尔福系列L36SA , 2 ×1.6 , 50W系列DC / DC电源模块: 18 〜 75V的, 12V / 4A出来 [Delphi Series L36SA, 2 x 1.6, 50W Family DC/DC Power Module: 18~75V in, 12V/4A out]
分类和应用: 电源电路
文件页数/大小: 13 页 / 662 K
品牌: DELTA [ DELTA ELECTRONICS, INC. ]
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FEATURES DESCRIPTIONS  
Vi(+)  
Vo(+)  
Over-Current Protection  
Sense(+)  
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).  
ON/OFF  
Sense(-)  
Vi(-)  
Vo(-)  
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.  
Figure 16: Remote on/off implementation  
Remote Sense  
Over-Voltage Protection  
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:  
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.  
[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).  
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.  
Vi(+) Vo(+)  
Sense(+)  
Sense(-)  
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.  
Vi(-) Vo(-)  
Contact  
Resistance  
Contact and Distribution  
Losses  
Remote On/Off  
Figure 17: Effective circuit configuration for remote sense  
operation  
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.  
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.  
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.  
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.  
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.  
Care should be taken to ensure that the maximum  
output power does not exceed the maximum rated  
power.  
DS_L36SA12004_02142007  
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