NCP1280 Description
NCP1280 Active Clamp Voltage Mode PWM Controller for Off-Line Applications The NCP1280 provides a highly integrated solution for off−line power supplies requiring high−efficiency and low parts count. This voltage mode controller provides control outputs for driving a forward converter primary MOSFET and an auxiliary MOSFET for active clamp circuit. The second output with its programmable delay can also be used for...
NCP1280 Key Features
- Internal High Voltage Startup Regulator (25 V to 700 V)
- Dual Control Outputs with Adjustable Overlap Delay
- Programmable Maximum Duty Cycle Control
- Single Resistor Oscillator Frequency Setting
- Fast Line Feedforward
- Line Under/Overvoltage Lockout
- Dual Mode Overcurrent Protection
- Programmable Soft-Start
- Precision 5.0 V Reference
- This is a Pb-Free Device
NCP1280 Applications
- Internal High Voltage Startup Regulator (25 V to 700 V)
- Dual Control Outputs with Adjustable Overlap Delay