SCYW99143 - Universal High Voltage Control Block
Detects AC line presence and activates X2 discharge circuitry with certain delay when the application is unplugged from the mains.
Initiates ultra low consumption mode (off *mode) when cross V_REM_off.
Open collector to grounding FB pin to disable the second controller Voltage input to detect
Customer Specific Device from ON Semiconductor SCYW99143 Universal High Voltage Control Block for SMPS Controllers with Extremely Low Stand-by Power Consumption Product Preview The SCYW99143 is an HV control circuit specifically designed for flyback and other SMPS controllers for applications with extremely low no load consumption.
The internal startup current source supplies the SCYW99143 DIE and slaved SMPS controller during start up.
This function greatly simplifies the des
SCYW99143 Features
* High Voltage Start Up
* Internal Brown
* Out Protection
* Buffered Brown
* Out Divider Output Available
* Automatic and Lossless X2 Capacitor Discharge Function
* Remote Input for Standby Operation Control
* Active ON or OFF Off
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