SG6846
Features
- Low Startup Current: 8µA
- Low Operating Current: 3.7m A
- 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 ponents
- Programmable Over-Temperature Protection (OTP)
Applications
General-purpose switch-mode power supplies and flyback power converters, including:
- Power Adapters
- Open-Frame SMPS
- SMPS with Surge-Current Output, such as for
Printers, Scanners, Motor Drivers
Description
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...
