Onsemi NCP1060

Description

The NCP1060 integrate a fixed frequency current mode controller with a 700 V MOSFET. Available in a PDIP−7 and SOIC-10 package, the NCP1060 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).Unlike other monolithic solutions, the NCP1060 is quiet by nature: during nominal load operation, the part switches at one of the available frequencies (60 or 100 kHz). When the output power demand diminishes, the IC automatically enters frequency foldback mode and provides excellent efficiency at light loads. When the power demand reduces further, it enters into a skip mode to reduce the standby consumption down to a no load condition.Protection features include: a timer to detect an overload or a short−circuit event, Overvoltage Protection with auto−recovery and AC input line voltage detection (A version).The ON proprietary integrated Over Power Protection (OPP) lets you harness the maximum delivered power without affecting your standby performance simply via external resistors.The NCP1060/NCP1063 family can be seamlessly used both in non-isolated and in isolated topologies.

Features

• Built−in 700 V MOSFET with RDS(on) of 34  (NCP1060) and 11.4  (NCP1063)
• Large Creepage Distance Between High−voltage Pins
• Current−Mode Fixed Frequency Operation – 60 kHz or 100 kHz (130 kHz on demand)
• Adjustable Peak Current: see below table
• 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 4 ms 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
• No Load Input Consumption < 50 mW
• Frequency Foldback to Improve Efficiency at Light Load
• These are Pb−Free DevicesTypical Applications
• Auxiliary / Standby Isolated and Non−isolated Power Supplies
• Power Meter SMPS
• Wide Vin Low Power Industrial SMPS

Typical applications

• Power Meter SMPS
• Wide Vin Industrial low power SMPS
• White goods (Washing, Cold, Aircon ,...)
• LED Lighting systems
• Auxiliary Power Supply Isolated and Non-isolated

More information

• Datasheet
• IC product information