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STR-A6100Series

PRC, Auto Burst Standby, Current-Mode Control

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Low Power Off-line SMPS Primary Switcher

PRC Pulse Ratio Control : (8µs fixed off-time, variable on-time)

The switching frequency varies within an optimum range of 63kHz to 120kHz, according to load

variations, to create a quasi-jittering, low-EMI noise operation.

Auto burst standby: (No Load Consumption<100mW at AC264V)Enables very low power consumption at no load.

Typical results of a 5W universal input power supply are 35mW at AC110V and 43mW 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

600V BCD process allows direct connection of the STARTUP pin to the rectified high voltage rail. This reduces component 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

5

43

DrainDrain

78

21

VFB/OLPGNDVCCS/OCP

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, PC, LBP, Audio system and etc.

Ink jet printer, DVD Player/Recorder, VCR, Set Top Box and etc.Air conditioner, Refrigerator, Washer, Dish Washer and etc.