Datasheet > TPS272C45CRHFR

TPS272C45CRHFR

更新时间： 2024-11-05 02:49:27

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
59页	2545K
描述
TPS272C45 45-mÎ©, Dual-Channel Smart High-Side Switch With Diagnostics

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TPS272C45CRHFR 数据手册

TPS272C45

SLVSF24A – DECEMBER 2020 – REVISED DECEMBER 2021

TPS272C45 45-mΩ, Dual-Channel Smart High-Side Switch With Diagnostics

1 Features

3 Description

•

Low R_ON(45-mΩ typical) high-side switch for 24-V

industrial applications

Wide DC operating voltage range: 6 V to 36 V

Low quiescent current (Iq) of 0.5 mA per channel

(typical) from 24-V supply

Fixed (5.8 A) and adjustable (0.7 A to 4 A with

external resistor) current limiting

Drive inductive, capacitive, and resistive loads

– Integrated output clamp to support inductive

load discharge

– Capacitive load drive minimizing peak inrush

current through dual threshold current limiting

Robust output protection

– Thermal shutdown

– Protection against short to ground events

– Configurable fault handling

TPS272C45 is a dual-channel smart high-side switch

designed to meet the requirements of industrial

control systems. The low R_DSON(45 mΩ) minimizes

device power dissipation driving a wide range (100

mA to 3 A) of output load current. TPS272C45

provides an additional low voltage supply (3.3 V to

5 V) input pin to minimize no-load power dissipation.

The device integrates protection features such as

thermal shut down, output clamp, and overcurrent

limit. These features improve system robustness

during fault events such as short circuit.

•

TPS272C45 implements an adjustable threshold

current limiting circuit that improves the reliability

of the system by reducing inrush current when

driving large capacitive loads and minimizing overload

current. The device also implements a configurable

inrush current time period with a higher level of

allowed current to drive high inrush current loads like

lamps or for fast charging of capacitive loads. The

device also provides an accurate load current sense

that allows for improved load diagnostics enabling

better predictive maintenance.

•

Enhanced diagnostic feature

– Output load current measurement

– Open load (off-state) detection

Package: 24-pin QFN (5 mm × 4 mm)

Functional Safety-Capable

– Documentation available to aid functional safety

system design

•

TPS272C45 is available in a small 24-pin, 5 mm ×

4 mm QFN leadless package with 0.5 mm pin pitch

minimizing the PCB footprint.

2 Applications

•

Industrial PLC systems

– Digital output modules

– IO-Link master ports

Motor drives

Device Information⁽¹⁾

PART NUMBER

PACKAGE

BODY SIZE (NOM)

•

TPS272C45

QFN (24)

5 mm × 4 mm

Building automation systems

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

24-V Power Supply

5-V/3.3-V Power

Supply (Optional)

TPS272C45

UV/OV

Detection

Internal Power

Supply

FET Vds Clamp

VDD

GND

VDD

GND

EN1

EN2

EN1

EN2

VOUT1

VOUT2

Gate Driver

Power FET

Channel 1/2

FLT

OUT1

MCU

DIA_EN

SEL

LATCH

ILIM1

ILIM2

ILIMD

Current Limit

To Inductive,

SNS

Thermal

Shutdown

Capacitive and

Resistive Load

R_SNS

FLT

DIA_EN

SEL

ILIM1

ILIM2

ILIMD

OUT2

Open-load

detection

Fault Indication

SNS

R_ILIM1

R_ILIM2

SNS Mux

Current Sense

R_ILIMD

GND

Typical Application Schematic

Functional Block Diagram

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. UNLESS OTHERWISE NOTED, this document contains PRODUCTION

DATA.

12 3 4 5 6 7...59

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与TPS272C45CRHFR相关器件

型号	品牌	获取价格	描述	数据表
TPS272C45D	TI	获取价格	TPS272C45 45-mÎ©, Dual-Channel Smart High-Sid
TPS272C45DRHFR	TI	获取价格	TPS272C45 45-mÎ©, Dual-Channel Smart High-Sid
TPS274160	TI	获取价格	具有可调节电流限制的 36V、160mΩ、1.35A、4 通道工业高侧开关
TPS274160ARLHR	TI	获取价格	具有可调节电流限制的 36V、160mΩ、1.35A、4 通道工业高侧开关 \| RLH \|
TPS274160BRLHR	TI	获取价格	具有可调节电流限制的 36V、160mΩ、1.35A、4 通道工业高侧开关 \| RLH \|
TPS274C65	TI	获取价格	具有 SPI 接口和集成式 ADC 的 12V 至 36V 65mΩ 四通道高侧开关
TPS274C65CP	TI	获取价格	12V 至 36V、65mΩ 四通道高侧开关
TPS274C65CPRHAR	TI	获取价格	12V 至 36V、65mΩ 四通道高侧开关 \| RHA \| 40 \| -40 to 12
TPS27S100	TI	获取价格	具有可调节电流限制的 40V、80mΩ、4A、单通道工业高侧开关
TPS27S100APWPR	TI	获取价格	具有可调节电流限制的 40V、80mΩ、4A、单通道工业高侧开关 \| PWP \| 14 \|

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