Automotive load short-circuit reliability and accurate current sensing reference design
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.

Description & Features

Technical documentation

Support & Training

Order Now

See the Important Notice and Disclaimer covering reference designs and other TI resources.

Key Document


This reference design addresses the design challenges of providing power to the two actuators in a variable displacement A/C compressor. In designing circuits for these two loads, design engineers not only have the challenge of managing different current levels but also have to sense the current accurately to control the actuators and protect the circuits against faults. This reference design is able to surpass all of these challenges using a singular chip. The design guide will walk through all of the key specifications for controlling the variable compressor actuators. Finally it will show the testing of the loads for each of the scenarios discussed and how TI's smart high-side switch portfolio allows robust protection of these automotive loads. The automotive loads tested in this reference design represent a subsection of all of the total loads present on a body control module board. For more information about driving different types of loads see the How To Drive Resistive, Inductive, Capacitive, and Lighting Loads With Smart High Side Switches Application Report.

  • Short circuit reliability due to adjustable current limiting
  • High-accuracy current sensing

See the Important Notice and Disclaimer covering reference designs and other TI resources.


Schematic/Block Diagram

Quickly understand overall system functionality.

Download Schematic

Design Guide

Get results faster with test and simulation data that's been verified.

Download Design Guide

Design Files

Download ready-to-use system files to speed your design process. Get Viewer.

Download Design Files

TI Devices (2)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
TPS2HB50-Q1  40-V, 50-mΩ, 2-ch automotive smart high-side switch with adjustable current limit  Power switches  Sample & Buy View Design Kits & Evaluation Modules
TPS7B82-Q1  Automotive 300-mA, off-battery (40-V), ultra-low-IQ, low-dropout voltage regulator with enable  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
TPS2HB50-Q1 Download Download
TPS7B82-Q1 Download
Download Download
Download Download

Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.

Step 1: Download and install the free download.

Step 2: Download the Symbol and Footprint from the CAD.bxl file table.

Technical documentation

See the Important Notice and Disclaimer covering reference designs and other TI resources.

Datasheet (1)
Title Type Size (KB) Date
PDF 1703 05 Apr 2019
User guide (1)
Title Type Size (KB) Date
PDF 2957 11 Dec 2016
Design files (6)
Title Type Size (KB) Date
PDF 55 03 Aug 2018
ZIP 736 03 Aug 2018
PDF 93 02 Aug 2018
PDF 486 02 Aug 2018
ZIP 1982 02 Aug 2018
PDF 172 02 Aug 2018

Support & training

Search our extensive online knowledge base where millions of technical questions and answers are available 24/7.

Search answers from TI experts

Content is provided 'AS IS' by the respective TI and Community contributors and does not constitute TI specifications.
See terms of use.

If you have questions about quality, packaging, or ordering TI products visit our Support page.

Technical articles