深圳市中立信电子科技有限公司

NCP1654BD65R2G

Power Factor Controller for  Compact and Robust,  Continuous Conduction  Mode Pre-Converters

功率因数校正 - PFC NCP1654-65K-B-SOIC

The NCP1654BD65R2G NCP1654 is a controller for Continuous Conduction Mode  (CCM) Power Factor Correction step−up pre−converters. It controls  the power switch conduction time (PWM) in a fixed frequency mode  and in dependence on the instantaneous coil current.

NCP1654BD65R2G Features

• IEC61000−3−2 Compliant

• Average Current Continuous Conduction Mode

• Fast Transient Response

• Very Few External Components

• Very Low Startup Currents (< 75 A)

• Very Low Shutdown Currents (< 400 A)

• Low Operating Consumption

• ±1.5 A Totem Pole Gate Drive

• Accurate Fully Integrated 65/133/200 kHz Oscillator

• Latching PWM for cycle−by−cycle Duty−Cycle Control

• Internally Trimmed Internal Reference

• Undervoltage Lockout with Hysteresis

• Soft−Start for Smoothly Startup Operation

• Shutdown Function

• Pin to Pin Compatible with Industry Standard

• This is a Pb−Free Device

NCP1654BD65R2G Safety Features

• Inrush Currents Detection

• Overvoltage Protection

• Undervoltage Detection for Open Loop Detection or Shutdown

• Brown−Out Detection

• Soft−Start

• Accurate Overcurrent Limitation

• Overpower Limitation

NCP1654BD65R2G Typical Applications

• Flat TVs, PC Desktops

• AC Adapters

• White Goods, other Off−line SMPS