SG6741A
Overview
The highly integrated SG6741A series of PWM controllers 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: 4mA Linearly Decreasing PWM Frequency to 18kHz Frequency Hopping to Reduce EMI Emissions Peak-current-mode Control Cycle-by-cycle Current Limiting Leading-edge Blanking (LEB) Synchronized Slope Compensation GATE Output Maximum Voltage Clamp: 18V VDD Over-voltage Protection (Auto Restart) VDD Under-voltage Lockout (UVLO) Internal Open-loop Protection Constant Power Limit (Full AC Input Range)
