Onsemi NCP1653

Description

The NCP1653 is a controller designed for Continuous ConductionMode (CCM) Power Factor Correction (PFC) boost circuits. Itoperates in the follower boost or constant output voltage in 67 or 100kHz fixed switching frequency. Follower boost offers the benefits ofreduction of output voltage and hence reduction in the size and costof the inductor and power switch. Housed in a DIP−8 or SO−8package, the circuit minimizes the number of external componentsand drastically simplifies the CCM PFC implementation. It alsointegrates high safety protection features. The NCP1653 is a driverfor robust and compact PFC stages.

Features

• IEC1000−3−2 Compliant
• Continuous Conduction Mode
• Average Current−Mode or Peak Current−Mode Operation
• Constant Output Voltage or Follower Boost Operation
• Very Few External Components
• Fixed Switching Frequency: 67 kHz = NCP1653A,Fixed Switching Frequency: 100 kHz = NCP1653
• 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 / 150C)
• This is a Pb−Free Device

Typical applications

• AC Adapters SMPS
• White Goods
• TV & Monitors
• PC Desktop SMPS

More information

• Datasheet
• IC product information