NCP1653: Compact Fixed-Frequency Current-Mode Power Factor Correction Controller

Datasheet: CCM Power Factor Correction Controller Rev. 7 (235.0kB)

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The NCP1653 is a controller designed for Continuous Conduction Mode (CCM) Power Factor Correction (PFC) boost circuits. It operates in the follower boost or constant voltage in 67 kHz (NCP1653A) or 100 kHz (NCP1653) fixed switching frequency. Follower boost offers the benefits of reduction of output voltage and hence reduction in the size and cost of the inductor and power switch. Housed in a DIP-8 or SO-8 package, the circuit minimizes the number of external components and drastically simplifies the CCM PFC implementation. It also integrates high safety protection features. The NCP1653 is a driver for robust and compact PFC stages.

Features
IEC61000-3-2 Compliant
Continuous Conduction Mode
Average Current-Mode or Peak Current-Mode Operation
Constant Output Voltage or Follower Boost Operation
Very Few External Components
67 or 100 kHz Fixed Switching Frequency
Soft-Start Capability
VCC Undervoltage Lockout with Hysteresis (8.7 / 13.25 V)
Overvoltage Protection (107% of Nominal Output Level)
Undervoltage Protection or Shutdown (8% of Nominal Output Level)
Programmable Overcurrent Protection
Programmable Overpower Limitation
Thermal Shutdown with Hysteresis (120/ 150 °C)

Applications
Flat TVs Desktop PCs AC Adapters SMPS White Goods

Technical Information
Design & Development Tools (1)	Reference Manuals (1)
Reference Designs (2)	Selector Guides (1)
Application Notes (5)	Data Sheets (1)
Simulation Models (2)	Package Drawings (2)