CT5601 is a high performance current mode PWM controller for offline flyback converter applications. The CT5601 has built-in General Primary Side CC control, which simplifies isolated power supply design that requires CC regulation of the output.
In CT5601, PWM switching frequency with shuffling is fixed to 65 KHz and is trimmed to tight range. The CT5601 has built-in green and burst mode control for light and no load condition, which can achieve less than 75mW standby power for sub 30W applications.
The CT5601 integrates functions and protections of Under Voltage Lockout (UVLO), VCC over Voltage Protection (VCC OVP), Cycle-by-cycle Current Limiting (OCP), Short Circuit Protection (SCP), Over Load Protection (OLP), On-Chip Thermal Shutdown (OTP), Soft Start, VCC clamping and CS Pin Float Protection, etc