NCP1205 Description
NCP1205 Single Ended PWM Controller Featuring QR Operation and Soft Frequency Foldback The NCP1205 bines a true Current Mode Control modulator and a demagnetization detector to ensure full Discontinuous Conduction Mode in any load/line conditions and minimum drain voltage switching (Quasi--Resonant operation, also called critical conduction operation). With its inherent Variable Frequency Mode (VFM), the controller...
NCP1205 Key Features
- Natural Drain Valley Switching for Lower EMI and Quasi--Resonant
- Smooth Frequency Foldback for Low Standby and Minimum Ripple
- Adjustable Maximum Switching Frequency
- Internal 200 ns Leading Edge Blanking on Current Sense
- 250 mA Sink and Source Driver
- Wide Operating Voltages: 8.0 to 30 V
- Wide UVLO Levels: 7.2 to 15 V Typical
- Auto--Recovery Internal Short--Circuit Protection (OCP)
- Integrated 3.0 mA Typ Startup Source
- Current Mode Control