NCP1562B - High Performance Active Clamp/Reset PWM Controller

Product Overview

ON Semiconductor

Datasheet Details

Part number	NCP1562B
Manufacturer	ON Semiconductor
File Size	477.61 KB
Description	High Performance Active Clamp/Reset PWM Controller
Datasheet	NCP1562B Datasheet
Note	This datasheet PDF includes multiple part numbers: NCP1562B, NCP1562A. Please refer to the document for exact specifications by model.
Additional preview pages of the NCP1562B datasheet.

Product details

Description

Pin Symbol Description 1 Vin Connect the input line voltage directly to this pin to enable the internal startup regulator.A constant current source supplies current from this pin to the capacitor connected to the VAUX pin, eliminating the need for a startup resistor.The charge current is typically 10 mA.Maximum input voltage is 100 V.2 UVOV Input supply voltage is scaled down and sampled by means of a resistor divider.The same pin is used for both undervoltage (UV) and overvoltage (OV

Features

of the NCP1562 are soft- stop and a cycle skip current limit with a time threshold. Soft- stop circuitry powers down the converter in a controlled manner if a severe fault is detected. The cycle skip detector enables a soft- stop sequence if a continuous overcurrent condition is present. Additional features found in the NCP1562 include line feedforward, frequency synchronization up to 1.0 MHz, cycle- by- cycle current limit with leading edge blanking (LEB), independent under and overvoltage dete.

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Published: Jan 16, 2007 |