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UCD7230RGW

更新时间： 2024-10-14 03:24:31

品牌	Logo	应用领域
德州仪器 - TI		驱动器放大器
页数	文件大小	规格书
19页	337K
描述
Digital Control Compatible Synchronous Buck 【4-A Drivers with Current Sense Conditioning Amplifier

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UCD7230RGW 数据手册

UCD7230

www.ti.com

SLUS741–NOVEMBER 2006

Digital Control Compatible Synchronous Buck ±4-A Drivers with Current Sense

Conditioning Amplifier

FEATURES

APPLICATIONS

•

Digitally-Controlled Synchronous-Buck Power

Stages for Single and Multi-Phase

Applications

•

Input from Digital Controller Sets Operating

Frequency and Duty Cycle

•

Up to 2-MHz Switching Frequency

•

Especially Suited for Use with UCD91xx or

UCD95xx Contollers

High-Current Multi-Phase VRM/EVRD

Regulators for Desktop, Server, Telecom and

Notebook Processors

Dual Current Limit Protection with

Independently Adjustable Thresholds

•

Fast Current Sense Circuit with 25-ns

Propagation Delay and Adjustable Blanking

Interval Prevents Catastrophic Current Levels

•

Digitally-Controlled Synchronous-Buck Power

Supplies Using µCs or the TMS320TM DSP

Family

•

Digital Output Current Limit Flag

Low Offset, Gain of 25, Differential Current

Sense Amplifier

DESCRIPTION

•

3.3-V, 10-mA Internal Regulator

The UCD7230 is part of the UCD7K family of digital

control compatible drivers for applications utilizing

digital control techniques or applications requiring

fast local peak current limit protection.

Dual ±4-A TrueDrive™ High-Current Drivers

10-ns Typical Rise/Fall Times with 2.2-nF

Loads

•

25-ns Input-to-Output Propagation Delay

25-ns Current Sense-to-Output Propagation

Delay

•

4.5-V to 15.5-V Supply Voltage Range

V_IN

V_OUT

VDD

CS+

BST

OUT1

PVDD

OUT2

PGND

BIAS

0.6 V

UVLO

I_DLY

POS

NEG

25x

DriveandDead-Time

ControlLogic

(D;1-D)

Enable

3V3

REG

3V3

BIAS

Blank

AGND

I_LOAD

PWM

SRE

Over

Current

ILIM

CLF

SRE

DLY

I_MAX

Current

Limit Logic

ILIM/10

I_DLY

CLF

UCD7230

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.

TrueDrive, PowerPAD are trademarks of Texas Instruments.

PRODUCT PREVIEW information concerns products in the

formative or design phase of development. Characteristic data and

other specifications are design goals. Texas Instruments reserves

the right to change or discontinue these products without notice.

12 3 4 5 6 7...19

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与UCD7230RGW相关器件

型号	品牌	获取价格	描述	数据表
UCD7230RGWR	TI	获取价格	Digital Control Compatible Synchronous Buck Gate Drivers with Current Sense Conditioning A
UCD7230RGWRG4	TI	获取价格	Digital Power Compatible Synchronous Buck Driver 20-VQFN -40 to 105
UCD7230RGWT	TI	获取价格	Digital Control Compatible Synchronous Buck Gate Drivers with Current Sense Conditioning A
UCD7230RGWTG4	TI	获取价格	Digital Power Compatible Synchronous Buck Driver 20-VQFN -40 to 105
UCD7231	TI	获取价格	Digital Control Compatible Synchronous-Buck Gate Driver With Current Sense and Fault Prote
UCD7231RTJR	TI	获取价格	Digital Control Compatible Synchronous-Buck Gate Driver With Current Sense and Fault Prote
UCD7231RTJT	TI	获取价格	Digital Control Compatible Synchronous-Buck Gate Driver With Current Sense and Fault Prote
UCD7232	TI	获取价格	Digital Control Compatible Synchronous-Buck Gate Driver With Current
UCD7232RTJ	TI	获取价格	SWITCHING CONTROLLER, 2000kHz SWITCHING FREQ-MAX, PQCC20
UCD7232RTJR	TI	获取价格	Digital Control Compatible Synchronous-Buck Gate Driver With Current

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