GP8672b

GP8672b is a constant-voltage, constant-current primary-side feedback QR turn-on control IC designed for chargers and adapters. It features a proprietary output line loss compensation technique that effectively compensates for the voltage drop caused by output current across the output cable. The built-in loop compensation circuit eliminates the need for external compensation components, ensuring excellent system stability and superior CV/CC characteristics while meeting standby power consumption requirements below 75mW. The IC integrates multiple protection functions, including open-circuit protection, overvoltage protection, and short-circuit protection, and is available in a SOP7 package.

Applications

• Portable device adapters and chargers
• LED driver power supplies
• Drop-in replacement for linear power supplies and RCC converters

Key features

• High primary-to-secondary withstand voltage tested, high chip reliability
• High constant-voltage and constant-current accuracy
• Standby power consumption approx. 75mW
• Adjustable output line-loss compensation
• Integrated multi-protection features: CS & FB pin open-circuit protection, CS & FB short-to-GND protection, secondary winding short-circuit protection, secondary Schottky reverse-connection & short-circuit protection, VDD OVP/UVP, output OVP/UVP, OTP