Product details

Imax (A) 3 Current limit (Min) (A) 0.7 Current limit (Max) (A) 5.8 Current limit type Adjustable Current limit accuracy +25/-25% Current sense accuracy +4/-4% @1A Features Adjustable current limit, Current sense/monitor, Inductive load compatibility, Inrush current control, Short circuit protection, Thermal shutdown, Under voltage lock out Rating Catalog
Imax (A) 3 Current limit (Min) (A) 0.7 Current limit (Max) (A) 5.8 Current limit type Adjustable Current limit accuracy +25/-25% Current sense accuracy +4/-4% @1A Features Adjustable current limit, Current sense/monitor, Inductive load compatibility, Inrush current control, Short circuit protection, Thermal shutdown, Under voltage lock out Rating Catalog
VQFN (RHF) 24 20 mm² 5 x 4 VQFN (RHF) 24

TPS272C45 is a dual-channel smart high-side switch designed to meet the requirements of industrial control systems. The low RDSON (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.

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.

TPS272C45 is a dual-channel smart high-side switch designed to meet the requirements of industrial control systems. The low RDSON (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.

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.

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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. A) 08 Dec 2021
Functional safety information TPS272C45 Functional Safety FIT Rate, FMD and Pin FMA 08 Dec 2021
User guide TPS272C45 Evaluation Module (Rev. A) 02 Dec 2021
Application note Common Application Use Cases for the TPS272C45 Smart Industrial High Side Switch 30 Jun 2021
Application note Enabling SPI Communication Using TI's Smart High Side Switches (Rev. A) 11 May 2021
Technical article Bulk up your 24-VDC power distribution with industrial high-side switches 04 May 2021
Application note TPS272C45 Enables Smart Power Management of Remote I/Os 17 Dec 2020

Design & development

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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 (...)

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Simulation model

TPS272C45A Unencrypted PSpice Transient Model

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

TPS272C45C PSpice Unencrypted Transient Model

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

TPS272C45B PSpice Unencrypted Transient Model

SLVMDJ7.ZIP (65 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 (...)
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VQFN (RHF) 24 View options

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