onsemi PMIC - AC DC Converters, Offline Switchers FSCM0565RGWDTU

The FSCM0565RGWDTU is an integrated Pulse Width Modulator (PWM) and SenseFET designed for high-performance offline Switch Mode Power Supplies (SMPS). It features an internal avalanche rugged SenseFET, low start-up current (maximum 40 µA), and low power consumption of under 1 W at 240 VAC with a 0.4 W load. The device operates at a fixed frequency of 66 kHz and includes frequency modulation to minimize electromagnetic interference (EMI). This converter incorporates several protective features, including pulse-by-pulse current limiting, over voltage protection (OVP), over load protection (OLP), thermal shutdown (TSD), and under voltage lockout (UVLO) with hysteresis. It also has a built-in soft start function with a duration of 15 ms, enhancing reliability during operation. The FSCM0565RGWDTU is suitable for applications such as adapters, and SMPS for devices like VCRs, set-top boxes (STBs), and LCD monitors. Its design aims to reduce component count, size, and weight while improving efficiency and system reliability, making it a cost-effective solution for flyback converter designs.