SG6859A Datasheet Low Cost Green-Mode PWM Controller

Manufacturer: Fairchild (now onsemi)

SG6859A low cost green-mode pwm controller by Fairchild (now onsemi) - Datasheet Preview

Datasheet Details

Part number	SG6859A
Manufacturer	Fairchild (now onsemi)
File Size	0.96 MB
Description	Low Cost Green-Mode PWM Controller
Download	SG6859A Download (PDF)

General Description

This highly integrated PWM controller provides several enhancements designed to meet the low standby-power needs of low-power SMPS.

To minimize standby power consumption, the proprietary green-mode function provides off-time modulation to linearly decrease the switching frequency under light-load conditions.

This green-mode function enables the power supply to meet even the strictest power conservation requirements.

Overview

SG6859A — Low Cost, Green-Mode PWM Controller for Flyback Converters SG6859A Low-Cost, Green-Mode PWM Controller for Flyback.

Key Features

Green-Mode PWM.
Supports the “Blue Angel” Standard.
Low Startup Current: 9 μA.
Low Operating Current: 3 mA.
300 mA Driving Capability.
Leading-Edge Blanking.
Constant Output Power Limit.
Universal Input.
Built-in Synchronized Slope Compensation.
Current-Mode Operation.
Cycle-by-cycle Current Limiting.
Under-Voltage Lockout (UVLO).
Programmable PWM Frequency with Frequency Hopping.
VDD Over-Voltage Protection (Auto Restart).

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