NCP1207B, NCP1207A Datasheet - ON Semiconductor

NCP1207B PWM Controller

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Pin PinName Function ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 1 Demag Core reset detection and OVP Description The auxiliary FLYBACK signal ensures discontinuous operation and offers a fixed overvoltage detection level of 7.2 V. 2 F.

DATA SHEET www.onsemi.com PWM Current-Mode Controller for Free Running Quasi-Resonant Operation NCP1207A, NCP1207B The NCP1207A/B combines a true current mode modulator and a demagnetization detector to ensure full borderline/critical Conduction Mode in any load/line conditions and minimum drain voltage switching (Quasi Resonant operation). Due to its inherent skip cycle capability, the controller enters burst mode as soon as the power demand falls below a predetermined level. As this h.

NCP1207B Features

* Free

* Running Borderline/Critical Mode Quasi

* Resonant Operation

* Current

* Mode with Adjustable Skip

* Cycle Capability

* No Auxiliary Winding VCC Operation

* Auto

* Recovery Overcurrent Protection

* Latching Overvoltage Pro

NCP1207A_ONSemiconductor.pdf