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NCP1344: QR PWM Controller for AC-DC Power Supplies and USB Power Delivery

Datasheet: Quasi-Resonant Flyback Controller with HV section for Offline Power Supplies
Rev. 0 (348kB)
Product Overview
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The NCP1344 is a quasi-resonant controller (QR) which implements valley switching mode with valley lockout for improved efficiency and noise-free operation. The NCP1344 QR PWM controller is optimized for USB PD applications with the integration of high-voltage start-up, auto-tuning OCP, and low loss dynamic self-supply to reduce external BOM count.
Features   Benefits
     
  • Auto-Tuning OCP
 
  • OCP Adjusts with Variable Vout
  • Low Loss Self-Bias (DSS)
 
  • Enables wide output voltage range for USB PD
  • Valley Switching with VLO
 
  • Valley Lockout Option
  • Quiet Skip
 
  • Reduces Audible Noise in Skip Mode
Applications   End Products
  • USB Power Delivery Adapters
  • Battery Charging
  • AC-DC Power Supply
 
  • Notebook and Mobile Adapters
  • E-Bike
  • Display Power
Technical Documentation & Design Resources
Data Sheets (1) Evaluation Board Documents (2)
Package Drawings (2)  
Evaluation/Development Tool Information
Product Status Compliance Short Description Action
NCP1344PD45WGEVB Active
Pb-free
NCP1344PD45WGEVB - 45W evaluation board
Availability & Samples
Specifications
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
NCP1344BD1R2G Active
Pb-free
Halide free
NCP1344, NCP1344 SOIC-7 751U 1 260 Tape and Reel 2500 Contact Sales Office
Market Leadtime (weeks) : 13 to 16
ON Semiconductor   (2020-09-02 00:00) : 40,000

Product
Description
Pricing ($/Unit)
Compliance
Status
Topology
Control Mode
fsw Typ (kHz)
Stand-by Mode
UVLO (V)
Short Circuit Protection
Latch
Soft Start
VCC Max (V)
Drive Cap. (mA)
Package Type
NCP1344BD1R2G  
Pb
H
 Active   
Flyback
Current Mode
65
No
10.5
Yes
Yes
Yes
30
300 / 500
SOIC-7
Case Outlines
751BP    751U   
Previously Viewed Products
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