DESCRIPTION

The ST8835 is low cost, startup current, current mode PWM controller with green-mode power-saving operation. The integrated functions include the leading-edge blanking of the current sensing, internal slope compensation. It would provide the users a superior AC/DC power application of higher efficiency, low external compotation of higher efficiency, low external component counts, and lower cost solution for applications.

FATURES

* High-Voltage BiCNOS Process

* Very Low Startup Current (<20uA)

* Under Voltage Lockout (UVLO)

* Current Mode Control

* Non-audible-noise Green Mode Control Current Limiting

* LEB (Leading-Edge Blanking) on CS Pin

* OLP (Over Load Protection)

* OVP (Over Voltage Protection) on Vcc Pin

* Leading-Edge Blanking

* Programmable Switching Frequency

* Internal Slope Compensation

* Green-Mode Control for Power Saving

* 300mA Driving Capability

APPLICATUONS

* AC/DC Switching Power Adaptor

* Battery Charger

* PC 5V Standby Power

* Open-Farme Switching Power Supply