Datasheet > TPS40054_14

TPS40054_14

更新时间： 2024-11-07 02:58:23

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德州仪器 - TI		输入元件
页数	文件大小	规格书
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描述
WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER

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TPS40054_14 数据手册

TPS40054

TPS40055

TPS40057

www.ti.com

SLUS593H –DECEMBER 2003–REVISED JULY 2012

WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER

Check for Samples: TPS40054, TPS40055, TPS40057

FEATURES

CONTENTS

•

Operating Input Voltage 8 V to 40 V

Device Ratings

Input Voltage Feed-Forward Compensation

< 1 % Internal 0.7-V Reference

Electrical Characteristics

Pin Descriptions

Programmable Fixed-Frequency Up to 1-MHz

Voltage Mode Controller

Application Information

Design Examples

•

Internal Gate Drive Outputs for High-Side and

Synchronous N-Channel MOSFETs

Additional References

•

16-Pin PowerPAD™ Package (θ_JC= 2°C/W)

Thermal Shutdown

DESCRIPTION

The TPS4005x is a family of high-voltage, wide input

(8 V to 40 V), synchronous, step-down controllers.

The TPS4005x family offers design flexibility with a

variety of user-programmable functions, including

soft-start, UVLO, operating frequency, voltage feed-

Externally Synchronizable

Programmable High-Side Sense Short-Circuit

Protection

•

Programmable Closed-Loop Soft-Start

TPS40054 Source Only

forward,

high-side

current

limit,

and

loop

compensation.

TPS40055 Source/Sink

The TPS4005x uses voltage feed-forward control

techniques to provide good line regulation over the

wide (4:1) input voltage range, and fast response to

input line transients. Near-constant modulator gain

with input variation eases loop compensation. The

externally programmable current limit provides pulse-

by-pulse current limit, as well as hiccup mode

operation utilizing an internal fault counter for longer

duration overloads.

TPS40057 Source/Sink With V_OPrebias

APPLICATIONS

•

Power Modules

Networking/Telecom

Industrial/Servers

TPS4005xPWP

KFF

ILIM

VIN

V_IN

BOOST 14

HDRV 13

BP5

SYNC

–

SGND

SS/SD

VFB

V_O

–

BP10 11

LDRV 10

PGND

COMP

UDG-03179

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.

PowerPAD is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...35

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与TPS40054_14相关器件

型号	品牌	获取价格	描述	数据表
TPS40054MPWPREP	TI	获取价格	SWITCHING CONTROLLER, 1000kHz SWITCHING FREQ-MAX, PDSO16, PLASTIC, HTSSOP-16
TPS40054PWP	TI	获取价格	WIDE INPUT SYNCHRONOUS BUCK CONTROLLER
TPS40054PWPR	TI	获取价格	WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER
TPS40054QPWPRQ1	TI	获取价格	SWITCHING CONTROLLER, 1000kHz SWITCHING FREQ-MAX, PDSO16, PLASTIC, HTSSOP-16
TPS40055	TI	获取价格	WIDE INPUT SYNCHRONOUS BUCK CONTROLLER
TPS40055-EP	TI	获取价格	WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER
TPS40055MPWPREP	TI	获取价格	WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER
TPS40055MPWPREPG4	TI	获取价格	WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER
TPS40055PWP	TI	获取价格	WIDE INPUT SYNCHRONOUS BUCK CONTROLLER
TPS40055PWPG4	TI	获取价格	具有拉/灌电流能力且频率高达 1MHz 的宽输入（8V 至 40V）同步降压控制器 \| P

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