Cr6267sh is a high-performance PWM switch controlled by primary edge detection, and the standby power consumption is less than 75MW. Cr6267sh internally adopts the efficiency equalization technology of multi-mode control to optimize the standby power consumption and improve the efficiency of the chip system. At the same time, it adopts the primary inductance compensation technology and the internally integrated output line voltage compensation technology to ensure the CC / CV output accuracy of the chip in the process of mass production. The built-in full voltage power adaptive compensation technology ensures that the system is in the full voltage range Output constant power within (90vac ~ 264Vac).
Cr6267sh integrates a variety of functions and protection features, including undervoltage locking (UVLO), VDD overvoltage protection (OVP), soft start, over temperature protection (OTP), cycle by cycle current limit (OCP), CS pin suspension protection, output short circuit protection, and built-in leading edge blanking circuit, so that the chip has higher reliability.
main features
Standby less than 75MW
Primary edge detection topology without optocoupler and TL431
High precision constant voltage and constant current output in full voltage range
Programmable CC / CV mode control
Efficiency equalization technology using multi-mode control
Built in output line voltage compensation function
Built in primary inductance deviation compensation function
Built in full voltage power adaptive compensation function
Built in over temperature protection function
Built in CS open circuit protection function
Built in output short circuit protection function
Built in leading edge blanking
Overvoltage protection and clamping protection at VDD end
Cycle by Cycle OCP
4 pin heat dissipation
Sop-8l green package
Basic application
● low power adapter
● cellular telephone charger
● digital camera charger
