UC3846

更新时间： 2024-11-23 11:54:47

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		控制器
页数	文件大小	规格书
10页	69K
描述
SMPS Controller

阅读下载

中文翻译

获取价格

数据手册
替代型号

如果您发现信息不准确，欢迎纠错

UC3846 数据手册

www.fairchildsemi.com

UC3846

SMPS Controller

Features

Description

• Automatic Feed Forward Compensation

• Programmable Pulse by Pulse Current Limiting

• Automatic Symmetry Correction in Push-Pull

Configuration

• Enhanced Load Response Characteristics

• Parallel Operation Capability for Modulator Power

Systems

• Differential Current Sense Amplifier with Common Mode

Range

• Double Pulse Suppression

• 200mA Totem-Pole Outputs

• ±2% Band gap Reference

• Under-Voltage Lockout

• Soft-Start Capability

• Shutdown Terminal

The UC3846 control IC provides all of the necessary fea-

tures to implement fixed frequency, current mode control

schemes while maintaining a minimum external parts count.

The superior performance of this technique can be measured

in improved line regulation, enhanced load response char-

acteristics, and a simpler, easier-to-design control loop.

Topological advantages include inherent pulse-by-pulse cur-

rent limiting capability, automatic symmetry correction for

push-pull converters, and the ability to parallel “power

module^,,while maintaining equal current sharing. Protection

circuitry includes built-in-under-voltage lockout and pro-

grammable current limit in addition to soft-start capability. A

shutdown function is also available which can initiate either

a complete shutdown with automatic restart or latch the

supply off. Other features include fully latched operation,

double pulse suppression, deadtime adjust capability, and

±2% trimmed bandgap reference. The UC3846 features low

outputs in the OFF state.

• 500KHz Operation

16-DIP

Internal Block Diagram

Rev. 5.0

12 3 4 5 6 7...10

中文翻译

下载PDF

UC3846 替代型号

型号	品牌	替代类型	描述	数据表
LT3846N	Linear	功能相似	Current Mode PWM Controller

与UC3846相关器件

型号	品牌	获取价格	描述	数据表
UC3846_15	UTC	获取价格	CURRENT MODE PWM CONTROLLER
UC3846DW	ROCHESTER	获取价格	0.5 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16, GREEN, SOIC-16
UC3846DW	TI	获取价格	Current Mode PWM Controller
UC3846DWG4	TI	获取价格	Current Mode PWM Controller
UC3846DWTR	TI	获取价格	Current Mode PWM Controller
UC3846DWTRG4	TI	获取价格	Current Mode PWM Controller
UC3846FN	ETC	获取价格	Current-Mode SMPS Controller
UC3846G-D08-T	UTC	获取价格	LOW COST POWER-SAVING MODE PWM CONTROLLER FOR FLYBACK CONVERTERS
UC3846G-D16-T	UTC	获取价格	CURRENT MODE PWM CONTROLLER
UC3846G-S16-R	UTC	获取价格	CURRENT MODE PWM CONTROLLER