IR1150 Description
The µPFC IR1150 is a power factor correction (PFC) control IC designed to operate in continuous conduction mode (CCM) over a wide range input line voltages. The IR1150 is based on IR's proprietary "One Cycle Control" (OCC) technique providing a cost effective solution for PFC. The proprietary control method allows major reductions in ponent count, PCB area and design time while delivering the same high system...
IR1150 Key Features
- PFC with IR proprietary “One Cycle Control”
- Continuous conduction mode (CCM) boost type PFC
- No line voltage sense required
- Programmable switching frequency (50kHz-200kHz)
- Programmable output overvoltage protection
- Brownout and output undervoltage protection
- Cycle-by-cycle peak current limit
- Soft start
- User initiated micropower “Sleep Mode”
- Open loop protection Maximum duty cycle limit of 98% User programmable fixed frequency operation Min. off time of 150-35