NCP1294: PWM Controller for Flyback or Forward Converters

The NCP1294 fixed frequency flyback PWM controller contains all of the features necessary for basic flyback, forward or boost operation. This PWM controller has been optimized for high frequency primary side control operation. In addition, this device includes such features as: Soft Start, accurate duty cycle limit control, less than 50uA startup current, over and under voltage protection, and bidirectional synchronization. The NCP1294 is available in a SOIC-16 and TSSOP-16 surface mount packages.

技术特性
  • 1.0 MHz Frequency Capability
  • Fixed Frequency Voltage Mode Operation, with Feed Forward
  • Thermal Shutdown
  • Undervoltage Lock−Out
  • Accurate Programmable Max Duty Cycle Limit
  • 1.0 A Sink/Source Gate Drive
  • Programmable Pulse−By−Pulse Overcurrent Protection
  • Leading Edge Current Sense Blanking
  • 75 ns Shutdown Propagation Delay
  • Programmable Soft−Start
  • Undervoltage Protection
  • Overvoltage Protection with Programmable Hysteresis
  • Bidirectional Synchronization
  • 25 ns GATE Rise and Fall Time (1.0 nF Load)
  • 3.3 V 3% Reference Voltage Output
  • These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
    Compliant
应用
  • MPPT (Maximum Peak Power Tracking)
终端产品
  • Solar Power Battery Charger
封装图 PACKAGE DIMENSIONS

NCP1294封装图

订购信息 Ordering Information
产品 状况 Compliance 具体说明 封装 MSL* 容器 预算价格 (1千个数量的单价)
类型 外形 类型 数量
NCP1294EDBR2G Active
Pb-free
Halide free
PWM Controller for Flyback or Forward Converters TSSOP-16 948F-01 1 Tape and Reel 2500 $0.7
NCP1294EDR2G Lifetime 
Pb-free
Halide free
PWM Controller for Flyback or Forward Converters SOIC-16 751B-05 1 Tape and Reel 2500 $0.9466
数据资料DataSheet下载
概述 文档编号/大小 版本
PWM Controller for Flyback or Forward Converters NCP1294/D (94.0kB) 2