TIDA-01237

Automotive Multi-Switch Detection Interface (MSDI) Reference Design

TIDA-01237

Design files

Overview

This reference design shows example implementations of how to handle a variety of high-voltage (HV) switch inputs using a multi-switch detection interface (MSDI) device. This user's guide gives real-world examples of a MSDI device handling HV switch inputs for body control module (BCM), faceplate, and top column module (TCM) applications. In addition, the design utilizes a wide-VIN low-dropout (LDO) regulator for creating a fixed 3.3-V microcontroller supply voltage.

Features

This reference design shows example implementations of how to handle a variety of high-voltage (HV) switch inputs using a multi-switch detection interface (MSDI) device. This user's guide gives real-world examples of a MSDI device handling HV switch inputs for body control module (BCM), faceplate, and top column module (TCM) applications. In addition, the design utilizes a wide-VIN low-dropout (LDO) regulator for creating a fixed 3.3-V microcontroller supply voltage.

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

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

TIDUC45.PDF (12253 K)

Reference design overview and verified performance test data

TIDRPE5.PDF (619 K)

Detailed schematic diagram for design layout and components

TIDRPE6.PDF (66 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRPE7.PDF (294 K)

Detailed overview of design layout for component placement

TIDRPE9.ZIP (1106 K)

Files used for 3D models or 2D drawings of IC components

TIDCD25.ZIP (1863 K)

Design file that contains information on physical board layer of design PCB

TIDRPE8.PDF (1465 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Multi-switch detection interface (MSDI) ICs

TIC10024-Q1Automotive 35-V multi-switch detection interface (MSDI) with SPI

Data sheet document-pdfAcrobat PDF open-in-new HTML
Multi-switch detection interface (MSDI) ICs

TIC12400-Q1Automotive 35-V multi-switch detection interface (MSDI) with SPI & integrated ADC

Data sheet document-pdfAcrobat PDF open-in-new HTML
Linear & low-dropout (LDO) regulators

TPS7B67-Q1Automotive 450-mA, off-battery (40-V), high-PSRR, low-IQ, low-dropout voltage regulator with PG

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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* Design guide Automotive Multi-Switch Detection Interface Reference Design Dec. 04, 2016

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