NCP1294ED16G

更新时间： 2024-11-29 05:52:03

品牌	Logo	应用领域
安森美 - ONSEMI		控制器
页数	文件大小	规格书
13页	224K
描述
Enhanced Voltage Mode PWM Controller

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NCP1294ED16G 数据手册

NCP1294

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Enhanced Voltage Mode

PWM Controller

The NCP1294 fixed frequency feed forward voltage mode PWM

controller contains all of the features necessary for basic voltage mode

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 50mA startup current, over and undervoltage protection, and

bidirectional synchronization. The NCP1294 is available in a 16 lead

SOIC narrow surface mount package.

http://onsemi.com

SOIC−16

D SUFFIX

CASE 751B

TSSOP−16

DTB SUFFIX

CASE 948F

Features

• 1.0 MHz Frequency Capability

• Fixed Frequency Voltage Mode Operation, with Feed Forward

• Thermal Shutdown

PIN CONNECTIONS AND

MARKING DIAGRAM

• 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

GATE

PGND

SENSE

SYNC

REF

LGND

COMP

R C

SET

• 25 ns GATE Rise and Fall Time (1.0 nF Load)

• 3.3 V 3% Reference Voltage Output

• Pb−Free Packages are Available*

NCP1294= Specific Device Code

= Assembly Location

WL, L = Wafer Lot

YY, Y = Year

WW, W = Work Week

= Pb−Free Package

ORDERING INFORMATION

†

Device

Package

Shipping

NCP1294ED16

SOIC−16 48 Units / Rail

NCP1294ED16G

SOIC−16 48 Units / Rail

(Pb−Free)

NCP1294EDR16

SOIC−16 2500 Tape & Reel

NCP1294EDR16G

SOIC−16 2500 Tape & Reel

(Pb−Free)

NCP1294EDTB16G TSSOP−16 96 Units / Rail

(Pb−Free)

NCP1294EDTB16R2GTSSOP−16 2500 Tape & Reel

(Pb−Free)

*For additional information on our Pb−Free strategy and soldering details, please

download the ON Semiconductor Soldering and Mounting Techniques

Reference Manual, SOLDERRM/D.

†For information on tape and reel specifications,

including part orientation and tape sizes, please

refer to our Tape and Reel Packaging Specifications

Brochure, BRD8011/D.

This document contains information on a product under development. ON Semiconductor

reserves the right to change or discontinue this product without notice.

Publication Order Number:

April, 2009 − Rev. P0

NCP1294/D

12 3 4 5 6 7...13

中文翻译

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NCP1294EDR2G	ONSEMI	获取价格	Flyback, Boost, Forward PWM Controller
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