NCP1028 Description
NCP1028 High-Voltage Switcher for Medium Power Offline SMPS Featuring Low Standby Power The NCP1028 offers a new solution targeting output power levels from a few watts up to 15 W in a universal mains flyback application. Our proprietary high−voltage technology lets us include a power MOSFET together with a startup current source, all directly connected to the bulk capacitor. To prevent lethal runaway in low input...
NCP1028 Key Features
- Built-in 700 V MOSFET with Typical RDS(on) of 5.8 W, TJ = 25°C
- Current-Mode Fixed Frequency Operation: 65 kHz and 100 kHz
- Fixed Peak Current of 800 mA
- Skip-Cycle Operation at Low Peak Currents
- Internal Current Source for Clean and Lossless Startup Sequence
- Auto-Recovery Output Short Circuit Protection with Timer-Based
- Programmable Brown-Out Input for Low Input Voltage Detection
- Programmable Over Power Protection
- Input to Permanently Latchoff the Part
- Internal Frequency Jittering for Improved EMI Signature
NCP1028 Applications
- Built−in 700 V MOSFET with Typical RDS(on) of 5.8 W, TJ = 25°C