Continuous Conduction Mode PFC Controller
NCP1653, NCP1653A
Compact, Fixed-Frequency,
Continuous Conduction
Mode PFC Controller
The NCP1653 is a controller desig...
Description
NCP1653, NCP1653A
Compact, Fixed-Frequency,
Continuous Conduction
Mode PFC Controller
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 output voltage in 67 or 100 kHz 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
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 / 150_C)
This is a Pb−Free Device
Typical Applications
TV & Monitors
PC Desktop SMPS AC Adapters SMPS
White Goods
AC Input
EMI Filter
Output
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