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NCP4330: Secondary Side Synchronous Controller

Datasheet: Post Regulation Driver
Rev. 1 (166.0kB)
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»Product Change Notification (2)
Product Overview
Product Description
The NCP4330 houses a dual MOSFET driver intended to be used as a companion chip in AC−DC or DC−DC multi−output post regulated power supplies. Being directly fed by the secondary AC signal, the device keeps power dissipation to the lowest while reducing the surrounding part count. Furthermore, the implementation of a N−channel MOSFET gives NCP4330−based applications a significant advantage in terms of efficiency.
Features
 
  • Undervoltage Lockout
  • Thermal Shutdown for Overtemperature Protection
  • PWM Operation Synchronized to the Converter Frequency
  • High Gate Drive Capability
  • Bootstrap for NMOSFET HighSide Drive
  • OverLap Management for Soft Switching
  • Ideal for Frequencies up to 400 kHz
Applications
  • Offline Switch Mode Power Supplies such as ATX
  • Power DCDC Converters
Technical Documentation & Design Resources
Reference Designs (1) Package Drawings (1)
Data Sheets (1)  
Availability and Samples
Product
Status
Compliance
Description
Package
MSL*
Container
Budgetary Price/Unit
Type
Case Outline
Type
Qty.
NCP4330DR2G Obsolete
Pb-free
Halide free
Secondary Side Synchronous Controller SOIC-8 751-07 1 Tape and Reel 2500  
Moisture Sensitivity level (MSL) for surface mount devices (lead free measured at 260°C reflow, non lead free at 235°C reflow)
Market Leadtime (weeks) : Contact Factory
Previously Viewed Products
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New Products
 

NCP4305  Secondary Side Synchronous Rectification Driver for High Efficiency SMPS Topologies

  • Precise true secondary zero current detection with adjustable threshold
  • Self synchronization
  • Typical 20 ns turn off delay from current sense input to driver