STR-A61xx Datasheet | Sanken

STR-A6100 Series PRC, Auto Burst Standby, Current-Mode Control w t ew N Ne ct u uc d d o o r P Pr Low Power Off-line SMPS Primary Switcher Features PRC Pulse Ratio Control : (8 µs fixed off-time, variable on-time) The switching frequency varies within an optimum range of 63k Hz to 120k Hz, according to load variations, to create a quasi-jittering, low-EMI noise operation. Auto burst standby: (No Load Consumption < 100 m W at AC 264V) Enables very low power consumption at no load. Typical results of a 5W universal input power supply are 35m W at AC110V and 43m W at AC220V. Auto bias function This function stabilizes operation during Auto Burst Standby mode, by preventing a Hiccup mode. The Auto Bias function forces the IC to turn on before the VCC voltage reaches VCC (OFF) , thereby stabilizing the entire power supply operation. Integrated startup circuit 600 V BCD process allows direct connection of the STARTUP pin to the rectified high voltage rail. This reduces ponent count and improves overall efficiency. Current mode control Leading edge blanking Not required the external Low-pass filter circuit which prevent the malfunction due to the leading edge spike current. Avalanche energy guaranteed MOSFET with high VDSS The built-in power MOSFET simplifies the surge absorption circuit since the MOSFET guarantees the avalanche energy. No VDSS de-rating is required. Various protecting functions - Over current protection ------------ pulse by pulse - Over voltage protection ------------ with latch - Overload protection ---------------- Auto restart - Thermal shutdown ------------------ with latch Package (DIP-8) Outline (TOP VIEW) Startup 4 3 VFB/OLP GND VCC S/OCP Drain Drain 7 8 2 1 Applications Battery Charger ---------------------Standby Power Supply --------------S.M.P.S. -------------------------------Controller Power Supply -----------Cell Phone, Digital Still Camera, Camcorder, Shaver, Emergency light, Guidance light, and etc. Various TV applications,...