NCP1253 - Current-Mode PWM Controller

Product Overview

ON Semiconductor

Datasheet Details

Part number	NCP1253
Manufacturer	ON Semiconductor
File Size	396.64 KB
Description	Current-Mode PWM Controller
Datasheet	NCP1253 Datasheet
Additional preview pages of the NCP1253 datasheet.

Product details

Description

Pin No. Feedback pin 3 NC Non connected pin 4 CS Current sense + ramp compensation 5 VCC Supplies the controller protects the IC 6 DRV Driver output Description The controller ground.Hooking an optocoupler collector to this pin will allow regulation.The pin is electrically inert and can be grounded if necessary This pin monitors the primary peak current but also offers a means to introduce slope compensation.This pin

Features

Fixed.
Frequency 65 kHz or 100 kHz Current.
Mode Control Operation.
Frequency Foldback Down to 26 kHz and Skip.
Cycle in Light Load Conditions.
Adjustable Ramp Compensation.
Internally Fixed 4 ms soft.
start.
Timer.
based Auto.
Recovery or Latched Short.
Circuit Protection.
Frequency Jittering in Normal and Frequency Foldback Modes.
Latched OVP on VCC.
Up to 28 V VCC Operation.
Extremely Low No.

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Published: Apr 29, 2017 |