SG6846A
Overview
The SG6846A is especially designed for SMPS with surge-current output, incorporated with a two-level OCP function. Besides the cycle-by-cycle current limiting, if the switching current is higher than two thirds the peakcurrent threshold for 1700ms, over-current protection is activated such that the SG6846A is latched off.
- 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 OCP Delay: 1600ms
- Output Short-Circuited Delay Time: 100ms
