Datasheet > UCC28C41-Q1

UCC28C41-Q1

更新时间： 2024-11-19 11:58:39

品牌	Logo	应用领域
德州仪器 - TI		控制器
页数	文件大小	规格书
20页	450K
描述
BiCMOS LOW-POWER CURRENT-MODE PWM CONTROLLERS

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UCC28C41-Q1 数据手册

UCC28C41-Q1, UCC28C43-Q1, UCC28C45-Q1

www.ti.com

SLUSA12 –DECEMBER 2009

BiCMOS LOW-POWER CURRENT-MODE PWM CONTROLLERS

Check for Samples: UCC28C41-Q1 UCC28C43-Q1 UCC28C45-Q1

FEATURES

•

Rail-to-Rail Output Swings With 25-ns Rise

and 20-ns Fall Times

•

Qualified for Automotive Applications

±1% Initial Trimmed 2.5-V Error Amplifier

Reference

•

Enhanced Replacements for UC2842A Family

With Pin-to-Pin Compatibility

•

Trimmed Oscillator Discharge Current

New Undervoltage Lockout Versions

•

1-MHz Operation

50-μA Standby Current, 100-μA Maximum

Low Operating Current of 2.3 mA at 52 kHz

APPLICATIONS

Fast 35-ns Cycle-by-Cycle Overcurrent

Limiting

•

Switch Mode Power Supplies

DC-to-DC Converters

Board Mount Power Modules

•

±1-A Peak Output Current

DESCRIPTION

The UCC28C4x family are high performance current-mode PWM controllers. They are enhanced BiCMOS

versions with pin-for-pin compatibility to the industry standard UC284xA family and UC284x family of PWM

controllers. In addition, a lower startup voltage versions of 7 V is offered as UCC28C41.

Providing necessary features to control fixed frequency, peak current mode power supplies, this family offers

several performance advantages. These devices offer high frequency operation up to 1 MHz with low start up

and operating currents, thus minimizing start up loss and low operating power consumption for improved

efficiency. The devices also feature a fast current sense to output delay time of 35 ns, and a ±1-A peak output

current capability with improved rise and fall times for driving large external MOSFETs directly.

The UCC28C4x family is offered in the 8-pin SOIC (D) package.

ORDERING INFORMATION⁽¹⁾

MAXIMUM

DUTY CYCLE

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

T_A

UVLO ON/OFF

PACKAGE⁽²⁾

100%

8.4 V / 7.6 V

7.0 V / 6.6 V

UCC28C43QDRQ1⁽³⁾

UCC28C45QDRQ1⁽³⁾

UCC28C41QDRQ1

PREVIEW

–40°C to 125°C

SOIC – D

Reel of 2500

PREVIEW

28C41Q

50%

(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI

web site at www.ti.com.

(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.

(3) Product Preview

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

UNLESS OTHERWISE NOTED this document contains

PRODUCTION DATA information current as of publication date.

Products conform to specifications per the terms of Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...20

中文翻译

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与UCC28C41-Q1相关器件

型号	品牌	获取价格	描述	数据表
UCC28C41QDRQ1	TI	获取价格	汽车类 20V 低功耗电流模式 PWM 控制器，7V/6.6V UVLO，50% 占空比
UCC28C42	TI	获取价格	BICMOS LOW POWER CURRENT MODE PWM CONTROLLER
UCC28C42D	TI	获取价格	BICMOS LOW POWER CURRENT MODE PWM CONTROLLER
UCC28C42DG4	TI	获取价格	BiCMOS LOW-POWER CURRENT-MODE PWM CONTROLLER
UCC28C42DGK	TI	获取价格	BICMOS LOW POWER CURRENT MODE PWM CONTROLLER
UCC28C42DGKG4	TI	获取价格	BiCMOS LOW-POWER CURRENT-MODE PWM CONTROLLER
UCC28C42DGKR	TI	获取价格	BiCMOS LOW-POWER CURRENT-MODE PWM CONTROLLER
UCC28C42DGKRG4	TI	获取价格	BiCMOS LOW-POWER CURRENT-MODE PWM CONTROLLER
UCC28C42DR	TI	获取价格	BiCMOS LOW-POWER CURRENT-MODE PWM CONTROLLER
UCC28C42DRG4	TI	获取价格	BiCMOS LOW-POWER CURRENT-MODE PWM CONTROLLER

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