NCP1680: Totem Pole Critical Conduction Mode (CrM) Power Factor Correction Controller

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The NCP1680 is a CrM PFC controller IC designed to drive the bridgeless totem-pole PFC topology. The bridgeless totem-pole PFC is a power factor correction architecture that consists of a fast switching leg driven at the PWM switching frequency and a second leg that operates at the AC line frequency. This topology eliminates the diode bridge present at the input of a conventional PFC circuit, allowing significant improvement in the power stage efficiency.
特性   优势
     
  • Totem Pole PFC Topology Eliminates Input Diode Bridge
  
  • Enables High Efficiency & Compact Design
  • Critical Conduction Mode (CrM) Operation
  
  • Optimized Performance Across Power Levels
  • Discontinuous Conduction Mode (DCM) with Valley Turn On Under Light Load Condition
  
  • Optimized Performance Across Power Levels
  • Frequency Foldback in DCM With 25 kHz Minimum Frequency
  
  • Prevents Operation in Audible Range
  • Skip Mode in Very Light Load Condition
  
  • Complies with Energy Efficiency Regulatory Standards
  • Proprietary Current Sense Scheme
  
  • Cycle-by-Cycle Current Limit Without Hall Effect Sensor
  • Digital Voltage Loop Compensation
  
  • Simplifies Design & Reduces External Components
  • AC Line Monitoring Circuit & AC Phase Detection
  
  • Simplifies Design & Reduces External Components
  • Near Unity Power Factor in All Operating Modes
  
  • Complies with Energy Efficiency Regulatory Standards
  • PFC OK Indicator
  
  • Allows Communication with Downstream Converter to Optimize System Performance
应用   终端产品
  • Power Factor Correction
  • Offline Power Supply
  
  • Industrial Power Supplies
  • Telecom 5G Power
  • Networking Power
  • Gaming Console Power Supplies
  • UHD TV Power Supplies
  • Computing Power Supplies
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类型
数量
NCP1680AAD1R2G Active
Pb-free
Halide free
NCP1680, Totem Pole Critical Conduction Mode (CrM) Power Factor Correction Controller SOIC-16 751B-05 1 260 Tape and Reel 2500 $3.2952
NCP1680ABD1R2G Active
Pb-free
Halide free
NCP1680, Totem Pole Critical Conduction Mode (CrM) Power Factor Correction Controller SOIC-16 751B-05 1 260 Tape and Reel 2500 $2.024
市场订货至交货的时间(周) : Contact Factory
市场订货至交货的时间(周) : Contact Factory

Product
Description
Pricing ($/Unit)
Compliance
Status
PFC Mode
Frequency Operation
Control Mode
Topology
fSW Typ (kHz)
VCC Max (V)
Drive Cap. (mA)
UVLO (V)
Latch
UVP
Inhibition
Package Type
NCP1680AAD1R2G  
 NCP1680, Totem Pole Critical Conduction Mode (CrM) Power Factor Correction Controller 
 $3.2952 
Pb
H
 Active   
CRM
Variable
Current/Voltage Mode
Step-Up
Variable
30
100 / 100
10.5
Yes
Yes
No
SOIC-16
NCP1680ABD1R2G  
 NCP1680, Totem Pole Critical Conduction Mode (CrM) Power Factor Correction Controller 
 $2.024 
Pb
H
 Active   
CRM
Variable
Current/Voltage Mode
Step-Up
Variable
30
100 / 100
10.5
Yes
Yes
No
SOIC-16
外形
751B-05   
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