Part FAN6862H
Description Highly Integrated Green-Mode PWM Controller
Manufacturer Fairchild Semiconductor
Size 722.13 KB
Fairchild Semiconductor

FAN6862H Overview

Description

A highly integrated PWM controller, FAN6862H(HR) provides several features to enhance the performance of flyback converters. To minimize standby power consumption, a proprietary Green-Mode function provides off-time modulation to continuously decrease the switching frequency under light-load conditions.

Key Features

  • Low Startup Current: 8µA
  • Low Operating Current in Green Mode: 2mA
  • Peak-Current Mode Operation with Cycle-by-Cycle Current Limiting
  • PWM Frequency Continuously Decreasing with Burst Mode at Light Loads
  • VDD Over-Voltage Protection (OVP)
  • Constant Output Power Limit (Full AC Input Range)
  • Internal Latch Circuit (FAN6862H) for OVP, OTP
  • Fixed PWM Frequency (100KHz) with Frequency Hopping
  • Feedback Open-Loop Protection with 56ms Delay
  • Soft Startup Time: 5ms