--PN8147T

一、General Description
PN8147T is internally integrated with PWM controllers and power MOSFET, dedicated to high performance and peripheral components with streamlined AC / DC switching power supplies. The core
The chip provides extremely comprehensive and excellent performance of intelligent protection, including periodic overcurrent protection (external adjustable), overload protection, overvoltage protection, and CS short-circuit protection,
Soft start function. Through Hi-mode, Eco-mode, Burst-mode three pulse power adjustment mode, hybrid technology and special device, low power structure technology is realized
Ultra low standby power dissipation, optimum efficiency under full voltage range. The good EMI performance is fully guaranteed by frequency modulation technology and Soft Driver technology. The chip is also built in
Intelligent high voltage starting module. PN8147T provides an advanced implementation platform for high cost performance flyback switching power supply system with ultra-low standby power consumption. It is very suitable for flyback switching power supply system
Applications of smart meters, Eur2.0 and energy star.

二、Features
Power MOSFET with built in 1000V high avalanche capability
- Hi-mode (60kHz PWM)
- Eco-mode (dynamic PFM)
- Burst-mode (intermittent 25kHz mode)
- improve the frequency modulation technology EMI
- standby power < 50 mW @230VAC
- soft start technology
- internal high voltage startup circuit
- built-in line voltage compensation and slope compensation
- excellent comprehensive protection function
Over temperature protection (OTP)
Overload protection (OLP)
External resistance adjustable periodic overcurrent protection (OCP)
Overvoltage protection (OVP)
CS short-circuit protection

三、Applications

In the switching power supply adapter and battery charger
In the white goods, personal computer, audio and other auxiliary power supply
Smart meters

五、Typical Circuit

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