High performance PWM controller

CT1002 series

High performance, low-power secondary feedback switching power supply controller

 Product Introduction 

The CT1002 series is a high-performance PWM controller designed for isolated flyback ACDC switching power supplies. The chip integrates GaN high electron mobility power switching transistor. CT1003 also integrates into boost and forward power supply modes, achieving wide output voltage at low cost.

The CT1002 series has extremely low starting and working currents, as well as the Burst Mode function under light or no-load conditions, which can effectively reduce the standby power consumption of the switching power supply system and improve power conversion efficiency. The built-in synchronous slope compensation and front edge blanking of feedback pins not only reduce the number of components in the switching power supply system, but also increase the stability of the system and avoid the generation of harmonic oscillations. The optimized control mode enables the chip to have higher efficiency, faster transient response, and lower standby power consumption. Simultaneously using internal frequency jitter technology can better handle EMI.

The CT1002 series integrates comprehensive protection mechanisms, such as cycle by cycle peak current limitation, VCC overvoltage protection and undervoltage locking, output short circuit protection, internal over temperature protection function, and soft start function, which can effectively protect devices and avoid device damage.

 Product Features 

★ Current mode operation

★ Built in cutting-edge blanking

★ Bottom locking working mode

★ Light load Burst Mode function

★ Low standby power consumption

★ Built in frequency jitter function to improve EMI performance

★ Integrated GaN power switch tube

★ Gate driven output voltage clamp

★ Comprehensive protection mechanism

 application field 

★ PD and other fast charging chargers

★ Other battery chargers and adapter power supplies

 Technical configuration and performance