NCP1236 Просмотр технического описания (PDF) - ON Semiconductor

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Компоненты Описание

производитель

NCP1236

Fixed Frequency Current Mode Controller for Flyback Converters

ON Semiconductor 

HV stop

Brown-out

or AC OVP

detected

VCC

VCC(on)

VCC(min)

DRV

NCP1236

Waits next

VCC(on) before

starting

time

time

Figure 32. Brown−out Timing Diagram

time

When VHV crosses the VHV(start) threshold, the controller

can start immediately. When it crosses VHV(stop), it triggers

a timer of duration tHV: this ensures that the controller

doesn’t stop in case of line cycle drop−out.

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