Green-Mode PWM Controller

ST6850

300mA Driving Capability

DESCRIPTION

The ST6850 is the current mode PWM controller with green-mode power-saving

operation which can meet the low standby-power needs for low power SMPS. This green-

mode function enables the power supply to easily meet even the strictest power conservation

requirements. The small package provides the high efficiency / low cost solution for SMPS

power applications.

ST6850 is processed by BiCMOS fabrication, that enables reducing the start-up current

and the operating current. ST6850 is available by SOT-23-6L / DIP-8P packages.

PIN CONFIGURATION

SOT-23-6L

DIP-8P

PART MARKING

SOT-23-6L

DIP-8P

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STANSON TECHNOLOGY

120 Bentley Square, Mountain View, Ca 94040 USA

TEL: (650) 9389294 FAX: (650) 9389295

APPLICATIONS

AC / DC Switching Power Adaptor

Battery Charger

PC 5V Standby Power

Open-Frame Switching Power Supply

FEATURE

High-Voltage BiCMOS Process

Very Low Startup Current( <25u )

Under Voltage Lockout( UVLO )

Current Mode Control

Current Limiting

Programmable Switching Frequency

Intermal Slope Compensation

Green-Mode Control for Power Saving

Non-audible-noise Green Mode Control

300mA Driving Capability

OVP (Over Voltage Protection) on Vcc

Pin

YYWW

ST6850