的GreenChip III开关电源控制IC GreenChip III SMPS control IC
General description
The is a low cost Switched Mode Power Supply SMPS controller IC intended for flyback topologies. It operates in fixed frequency mode. To reduce ElectroMagnetic Interference EMI, frequency jitter has been implemented. Slope compensation is integrated for Continuous Conduction Mode CCM operation.
Features
SMPS controller IC enabling low-cost applications
Large input voltage range 12 V to 30 V
Very low supply current during start-up and restart typically 10 A
Low supply current during normal operation typically 0.5 mA without load
Overpower or high/low line compensation
Adjustable overpower time-out
Adjustable overpower restart timer
Fixed switching frequency with frequency jitter to reduce EMI
Frequency reduction with fixed minimum peak current to maintain high-efficiency at low output power levels
Slope compensation for CCM operation
Low and adjustable OverCurrent Protection OCP trip level
Adjustable soft start operation
Two protection inputs e.g. for input UVP and OVP, OTP and output OVP
IC overtemperature protection
Applications
All applications requiring efficient and cost-effective power supply solutions up to 75 W.