ON Semiconductor NCP1x High-Voltage Switchers

ON Semiconductor NCP1x High-Voltage Switchers integrate a fixed frequency current mode controller with a 700V MOSFET. NCP1x are available in a PDIP-7, SOIC-10 or SOIC-16 package. They offer a high level of integration, including soft-start, frequency-jittering, short-circuit protection, skip-cycle, adjustable peak current set point, ramp compensation and a Dynamic Self-Supply (eliminating the need for an auxiliary winding).

Features
Built−in 700V MOSFET with RDS(on) of 34W (NCP1060) and 11.4W (NCP1063)
Built−in 700V MOSFET with RDS(on) of 4.7W (NCP1076/77)/11W (NCP1072/75)/22W (NCP1070/71)
Large Creepage Distance Between High-voltage Pins
Current−Mode Fixed Frequency Operation - 60kHz or 100kHz (130kHz on demand)
Adjustable Peak Current
Fixed Ramp Compensation
Direct Feedback Connection for Non-isolated Converter
Internal and Adjustable Over Power Protection (OPP) Circuit
Skip-Cycle Operation at Low Peak Currents Only
Dynamic Self-Supply: No Need for an Auxiliary Winding
Internal 1ms or 4ms Soft-Start
Auto-Recovery Output Short Circuit Protection with Timer-Based Detection
Auto-Recovery Overvoltage Protection with Auxiliary Winding Operation
Frequency Jittering for Better EMI Signature, Including Frequency Foldback Mode
No Load Input Consumption < 50mW
Frequency Foldback to Improve Efficiency at Light Load
Internal Temperature Shutdown
These are Pb-Free Devices

Applications
Auxiliary, Standby Isolated and Non-isolated Power Supplies, White Goods, Smart Meter, E-Meter
Power Meter SMPS
Wide Vin Low Power Industrial SMPS

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