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

Request
Datasheet
Product Overview
View Material Composition
Product Change Notification
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.
Features   Benefits
     
  • 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
Applications   End Products
  • 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
Technical Documentation & Design Resources
Package Drawings (1) Videos (1)
Availability & Samples
Specifications
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
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 $1.43
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 $1.43
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : 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  
 $1.43 
Pb
H
 Active   
CRM
Variable
Current/Voltage Mode
Step-Up
25 kHz to 130 kHz
30
100 / 100
10.5
Yes
Yes
No
SOIC-16
NCP1680ABD1R2G  
 $1.43 
Pb
H
 Active   
CRM
Variable
Current/Voltage Mode
Step-Up
25 kHz to 275 kHz
30
100 / 100
10.5
Yes
Yes
No
SOIC-16
Case Outlines
751B-05   
Previously Viewed Products
Clear List

Featured Video
Power Factor Improvement Methods with Their Advantages & Disadvantages
Your request has been submitted for approval.
Please allow 2-5 business days for a response.
You will receive an email when your request is approved.
Request for this document already exists and is waiting for approval.