SG6846
Overview
The highly integrated SG6846 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 continuously decrease the switching frequency under light-load conditions.
- Low Startup Current: 8µA
- Low Operating Current: 3.7mA
- Peak-Current Mode of Operation with Cycle-by- Cycle Current Limiting
- PWM Frequency Continuously Decreasing with Burst Mode at Light Loads
- VDD Over-Voltage Protection (OVP)
- AC Input Brownout Protection with Hysteresis
- Constant Output-Power Limit (Full AC Input Range)
- Internal Latch Circuit for OVP, OTP, and OCP
- Two-level Over-Current Protection (OCP) with 96ms Delay Time
- Very Few External Components
