OB6573 Overview
OB6573 is a 8-pin active power factor correction (PFC) controller designed to operate in continuous conduction mode (CCM) with average current control. It provides near unity power factor for universal input line voltage (85VAC 265VAC) with no need to sense the line input voltage. The IC allows major reductions in Bill of Materials (BOM) ponent count, PCB area and design time pared to traditional solutions.
OB6573 Key Features
- 8-Pin Solution without Sensing Line Voltage
- Average Current Continuous Control Mode
- Fixed 65KHz Frequency with Frequency
- Wide-range Universal AC Input Voltage
- Very Low Shutdown Currents (Typical 200uA)
- Maximum Duty Cycle of 97%
- Trimmed Internal Reference
- Input Brown-out Protection
- Cycle by Cycle Over Current Limit
- Soft Over Current Protection