Part SG6849
Description Green-Mode PWM Flyback Power Controller
Manufacturer Fairchild Semiconductor
Size 955.55 KB
Fairchild Semiconductor
SG6849

Overview

This highly integrated PWM controller provides several features to enhance the performance of low-power flyback converters. To minimize standby power consumption, the proprietary green-mode function provides off-time modulation to linearly decrease the switching frequency under light-load and zero-load conditions.

  • Linearly Decreasing PWM Frequency
  • Green-Mode Under Light-Load and Zero-Load Conditions
  • Constant Voltage (CV) and Constant Current (CC)
  • No Secondary Feedback
  • Low Startup Current: 5μA
  • Low Operating Current: 3.6mA
  • Leading-Edge Blanking (LEB)
  • Constant Power Limit
  • Universal AC Input Range
  • Synchronized Slope Compensation