PN8571P
description
The PN8571P consists of a Low Standby-Power Primary Side controller and BJT, specifically designed for a high performance AC/DC charger or adaptor with minimal external ponents.
PN8571P operates in primary-side sensing and regulation, so opto-coupler and TL431 could be eliminated. In CV mode, multi-mode technique is utilized to achieve high efficiency, avoid audible noise and make the system meeting Energy star level VI. Good load regulation is achieved by the built-in cable drop pensation. In CC mode, the current and output power setting can be adjusted externally by the sense resistor at CS pin.
PN8571P offers plete protections including Cycle-by Cycle current limiting protection (OCP), over voltage protection (OVP), open loop protection (OLP), over temperature protection (OTP) and CS open or short protection (CS O/SP) etc.
Application
- Switch AC/DC Adapter
- Battery Charger
- Set-top box power supply
Output Features
Vo 100%
±5%
60%
±5%
Features
- Internal BJT switch...
