NCP81178 driver equivalent, secondary synchronous rectifier driver.
* N−Channel Synchronous Rectifier MOSFET Driver
* PWM Input Derived from a Winding on the Main Transformer or
Directly from a Pulse Transformer
* Internally G.
* High−Efficiency Isolated DC/DC Power Supplies
* Server Power, 48 V Telecom and Data−com Applications
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Pin No.
Pin Name
Description
1
SDDET
Primary shutdown detection. When the voltage on this pin exceeds the shutdown threshold, the driver
shuts down. If valid PWM pulses resume and VCC is above UVLO threshold, the driver will go through a
rest.
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