Preliminary Datasheet CURRENT MODE PWM CONTROLLER FOR BJT AP3720 General Description The AP3720 is a low startup current, current mode PWM controller with green-mode operation.
The PWM switching frequency at normal operation is 65k, but when the output power drops below the specifically level, the device enters the frequency-drop mode and the typical operating frequency is 20kHz (no audible noise).
Additionally, when the load drops to a very low level or zero, the IC operates in so called ‘burst mode’ to minimize switching loss.
The IC integrated a lot of functions such as the Lead-Edge Blanking (LEB) of the current sensing, internal slope compensation, line compensation, and several prot...

Since 2006. D4U Semicon,
Electronic Components Datasheet Search Site. (Privacy Policy & Contact)