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TPS272C45

ACTIVE

36-V, 45-mΩ, 3-A, 2-ch, Industrial high-side switch with adjustable current limit

Product details

Number of channels 2 Operating voltage (max) (V) 36 Operating voltage (min) (V) 6 Ron (typ) (mΩ) 45 Imax (A) 3 Current limit (min) (A) 0.7 Current limit (max) (A) 5.8 Current limit type Adjustable TI functional safety category Functional Safety-Capable Current limit accuracy +25/-25% Current sense accuracy +4/-4% @1A FET Internal Features Adjustable current limit, Current sense/monitor, Inductive load compatibility, Inrush current control, Short circuit protection, Thermal shutdown, Under voltage lock out Operating temperature range (°C) -40 to 125 Function Adjustable current limit, Current monitoring, Inductive load compatibility, Inrush current control, Short circuit protection, Thermal shutdown Rating Catalog
Number of channels 2 Operating voltage (max) (V) 36 Operating voltage (min) (V) 6 Ron (typ) (mΩ) 45 Imax (A) 3 Current limit (min) (A) 0.7 Current limit (max) (A) 5.8 Current limit type Adjustable TI functional safety category Functional Safety-Capable Current limit accuracy +25/-25% Current sense accuracy +4/-4% @1A FET Internal Features Adjustable current limit, Current sense/monitor, Inductive load compatibility, Inrush current control, Short circuit protection, Thermal shutdown, Under voltage lock out Operating temperature range (°C) -40 to 125 Function Adjustable current limit, Current monitoring, Inductive load compatibility, Inrush current control, Short circuit protection, Thermal shutdown Rating Catalog
VQFN (RHF) 24 20 mm² 5 x 4

The TPS272C45 is a dual-channel smart high-side switch designed to meet the requirements of industrial control systems. The low on-resistance (R DS(on) of 45 mΩ) minimizes device power dissipation driving a wide range (100 mA to 3 A) of output load current. The device 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.

The TPS272C45 device 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.

The TPS272C45 device is available in a small 24-pin, 5 mm × 4 mm QFN leadless package with 0.5 mm pin pitch minimizing the PCB footprint.

The TPS272C45 is a dual-channel smart high-side switch designed to meet the requirements of industrial control systems. The low on-resistance (R DS(on) of 45 mΩ) minimizes device power dissipation driving a wide range (100 mA to 3 A) of output load current. The device 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.

The TPS272C45 device 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.

The TPS272C45 device is available in a small 24-pin, 5 mm × 4 mm QFN leadless package with 0.5 mm pin pitch minimizing the PCB footprint.

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Technical documentation

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Type Title Date
* Data sheet TPS272C45 45-mΩ, Dual-Channel Smart High-Side Switch With Diagnostics datasheet (Rev. C) PDF | HTML 09 May 2023
Application brief Faster Switching of Large Inductive Loads in Digital Output Modules PDF | HTML 15 Jul 2022
Application brief High-Side Switch Open-Load Detection in ON-State PDF | HTML 05 Jul 2022
Application brief Implementation of Test Pulses in Digital Output Modules PDF | HTML 04 Mar 2022
Application note Using TPS272C45C High-Side Switch with 60-V Tolerance, Surge, and Inductive Load PDF | HTML 11 Feb 2022
Functional safety information TPS272C45 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 08 Dec 2021
User guide TPS272C45 Evaluation Module (Rev. A) PDF | HTML 02 Dec 2021
Application note Common Application Use Cases for the TPS272C45 Smart Industrial High Side Switch PDF | HTML 30 Jun 2021
Application note Enabling SPI Communication Using TI's Smart High Side Switches (Rev. A) PDF | HTML 11 May 2021
Technical article Bulk up your 24-VDC power distribution with industrial high-side switches PDF | HTML 04 May 2021
Application brief TPS272C45 Enables Smart Power Management of Remote I/Os PDF | HTML 17 Dec 2020

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPS272C45EVM — TPS272C45 evaluation module for 45-mΩ, 4-A, dual-channel, industrial smart high-side switch

The TPS272C45 evaluation module (EVM) is used to demonstrate and showcase all of the features of the underlying TPS272C45 industrial high-side switch. This evaluation board provides an easy way to connect a set of power supplies to the inputs of the TPS272C45, connect a load to the output, and (...)

User guide: PDF | HTML
Not available on TI.com
Support software

SLVC825 TPS272C45 Common Use Cases Code Examples Using MSP430

Supported products & hardware

Supported products & hardware

Products
High-side switches
TPS272C45 36-V, 45-mΩ, 3-A, 2-ch, Industrial high-side switch with adjustable current limit
Simulation model

TPS272C45A Unencrypted PSpice Transient Model

SLVMDJ0.ZIP (66 KB) - PSpice Model
Simulation model

TPS272C45B PSpice Unencrypted Transient Model

SLVMDJ7.ZIP (65 KB) - PSpice Model
Simulation model

TPS272C45C PSpice Unencrypted Transient Model

SLVMDJ3.ZIP (66 KB) - PSpice Model
Simulation model

TPS272C45D Unencrypted PSpice Transient Model

SLVMDP8.ZIP (35 KB) - PSpice Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Package Pins Download
VQFN (RHF) 24 View options

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