Wuxi Chipown Micro-electronics PN6370PSSC-R1B

PN6370P integrates an ultra-low standby power quasi-resonant primary-side controller with a 750V high avalanche capability smart power MOSFET, designed for high-performance chargers, adapters, and built-in power supplies with minimal peripheral components. Operating in primary-side feedback mode, the PN6370P eliminates the need for an optocoupler and TL431. The built-in high-voltage startup circuit enables a no-load chip power consumption of less than 30mW (at 230VAC). In constant voltage mode, quasi-resonant and multi-mode technologies are employed to improve efficiency and eliminate audio noise, enabling the system to meet Level VI energy efficiency standards; the adjustable output line compensation function provides excellent load regulation. In constant current mode, the output current and power can be adjusted via a resistor on the CS pin. The IC offers comprehensive intelligent protection features, including cycle-by-cycle overcurrent protection, overvoltage protection, open-loop protection, over-temperature protection, output short-circuit protection, and CS open/short-circuit protection, as well as integrated AC voltage overvoltage and undervoltage protection, adjustable via system voltage divider resistors.

PN6370P is a high-performance primary-side feedback controller. Operating in primary-side sensing and regulation mode, the PN6370P eliminates the need for an optocoupler and TL431. With constant voltage and constant current control loops, the PN6370P achieves high-accuracy CV/CC output to meet the requirements of most chargers and adapters. The built-in high-voltage startup circuit and ultra-low chip power consumption enable the system to meet stringent standby power consumption standards.

• Integrated 750V high avalanche capability smart power MOSFET
• Built-in high-voltage startup circuit, no-load power consumption less than 30mW (230VAC)
• Quasi-resonant and multi-mode technology for improved efficiency, meets Level VI energy efficiency standard
• ±5% CC/CV accuracy over full input voltage range
• Primary-side feedback eliminates optocoupler and TL431
• Adjustable CV, CC, and output line compensation
• No additional compensation capacitor required
• Audio noise free
• Intelligent protection features
  • Over Temperature Protection (OTP)
  • VDD Under-voltage & Over-voltage Protection (UVLO & OVP)
  • Cycle-by-cycle Over Current Protection (OCP)
  • CS Open/Short Circuit Protection (CS O/SP)
  • Open Loop Protection (OLP)
  • AC Over-voltage & Under-voltage Protection (OVP & BO)

• Switching power supply adapters
• Battery chargers
• Set-top box power supplies