NCP1377B, NCP1377 - PWM Current-Mode Controller

ON Semiconductor

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NCP1377B Datasheet Preview — This datasheet PDF includes multiple part numbers: NCP1377B, NCP1377. Please refer to the document for exact specifications by model.

Datasheet Details

Part number	NCP1377B, NCP1377
Manufacturer	ON Semiconductor
File Size	640.72 KB
Description	PWM Current-Mode Controller
Datasheet	NCP1377_ONSemiconductor.pdf
Note	This datasheet PDF includes multiple part numbers: NCP1377B, NCP1377. Please refer to the document for exact specifications by model.

NCP1377B Product details

Description

Pin Symbol Function 1 Demag Core reset detection and OVP 2 FB Sets the peak current setpoint 3 CS Current sense input and skip cycle level selection 4 GND 5 Drv 6 VCC 7 NC 8 HV The IC ground Driving pulses Supplies the IC High voltage pin Description The auxiliary FLYBACK signal ensures discontinuous operation and offers a fixed overvoltage detection level of 7.2 V.By connecting an optocoupler to this pin, the peak current setpoint is adjusted accordingl

Features

a sampling time of 4.5 ms whereas it is 1.5 ms for the B version. The NCP1377 also features an efficient protective circuitries which, in presence of an overcurrent condition, disables the output pulses and enters a safe burst mode, trying to restart. Once the default has gone, the device auto.
recovers. Finally an internal 1.0 ms Soft.
Start eliminates the traditional startup stress. Features.
Free.
Running Borderline/Critical Mode Quasi.
Resonant Operation.

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Published: Jul 2, 2014 |