Part SG6742MR
Description Highly Integrated Green-Mode PWM Controller
Manufacturer Fairchild Semiconductor
Size 936.14 KB
Fairchild Semiconductor
SG6742MR

Overview

The highly integrated SG6742ML/MR PWM controller 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 linearly decrease the switching frequency at light-load conditions.

  • High-Voltage Startup
  • Low Operating Current: 2.7mA
  • Linearly Decreasing PWM Frequency to 22KHz
  • Frequency Hopping to Reduce EMI Emission
  • Fixed PWM Frequency: 65KHz
  • Peak-Current-Mode Control
  • Cycle-by-Cycle Current Limiting
  • Leading-Edge Blanking
  • Synchronized Slope Compensation
  • Internal Open-Loop Protection