AN3109

AN3109 is a high performance current modePWM controller for offline flyback converter applications. The IC has built-in General Primary Side CC control, which simplifies isolated power supply design that requires CC regulation of the output. In AN3109, PWM switching frequency withshuffling is fixed to 65KHz and is trimmed to tight range. The IC has built-in green and burst mode control for light and zero loadings, which can achieve less than 75mW standby power...

AN3101

AN3101 is a high-performance PWM controller designed for offline flyback power supply. The chip integrates universal primary constant current control technology, which can support intermittent and continuous mode operation, suitable for isolated power supply applications with constant current output.AN3101 has a high-precision 65kHz switching frequency oscillator inside, and has a frequency jitter function to optimize EMI performance. The chip operates in green energy-saving mode and burp mode, which can achieve standby power consumption of less than 75mW. AN3101 integrates complete protection functions, including VDD undervoltage protection (UVLO), VDD overvoltage protection (OVP), cycle by cycle current limit, short circuit protection (SCP), overload protection (OLP), overheating protection, soft start, VDD clamping, and CS pin open circuit protection....