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ON Semiconductor NCP1632 power factor controller, interleaved, 2-phase

The NCP1632 integrated a dual MOSFET driver for interleaved PFC applications

ON Semiconductor NCP1632 product picture

The NCP1632 integrated a dual MOSFET driver for interleaved PFC applications. Interleaving consists of paralleling two small stages in lieu of a bigger one, more difficult to design. This approach has several merits like the ease of implementation, the use of smaller components or a better distribution of the heating. Also, Interleaving extends the power range of Critical Conduction Mode that is an efficient and cost-effective technique. Housed in a SOIC16 package, the circuit incorporates all the features necessary for building robust and compact interleaved PFC stages..

 

Key features

  • 180° out of phase operation
  • Frequency Clamped Critical conduction Mode (FCCrM) operation
  • Frequency foldback at low power
  • Integrated Overcurrent protection, Overvoltage protection, UVLO and brown-out protection

 

Additional features

  • 180° out of phase operation
  • Frequency Clamped Critical conduction Mode (FCCrM) operation
  • Frequency foldback at low power
  • Integrated Overcurrent protection, Overvoltage protection, UVLO and brown-out protection

 

Applications

  • All off line appliance requiring power factor correction
  • SMPS
  • Flat panel TVs
  • Computer Power supplies
  • LCD TV
  • Server power, networking power


Available tools

The NCP1632 integrated a dual MOSFET driver for interleaved PFC applications. Interleaving consists of paralleling two small stages in lieu of a bigger one, more difficult to design. This approach has several merits like the ease of implementation, the use of smaller components or a better distribution of the heating. Also, Interleaving extends the power range of Critical Conduction Mode that is an efficient and cost-effective technique (no need for low trr diodes). In addition, the NCP1632 drivers are 180o phase shifted for a significantly reduced current ripple. Housed in a SOIC16 package, the circuit incorporates all the features necessary for building robust and compact interleaved PFC stages, with a minimum of external components.

ON Semiconductor NCP1632 power factor controller | EBV Elektronik

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