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SG6859 Datasheet Low Cost Green-Mode PWM Controller

Manufacturer: Fairchild (now onsemi)

General Description

This highly integrated PWM controller provides several special 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 easily meet even the strictest power conservation requirements.

Overview

Low Cost Green-Mode PWM Controller for Flyback Converters Product.

Key Features

  • Green-Mode PWM.
  • Supports the “Blue Angel” Standard.
  • Low Start-up Current (9uA).
  • Low Operating Current (3mA).
  • 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 Protect.