Automotive Adaptive Front Light Positioning Stepper Motor


Design files


This TIDA-00146 reference design provides an integrated motor driver solution intended to drive a bipolar stepper motor in an automotive adaptive front light positioning application. This design features off battery capabilities with 45V maximum operating supply voltage. Along with, internal shutdown functions provided for overcurrent protection, short circuit protection, undervoltage lockout and overtemperature. This design incorporates the DRV8824EVM board to create the solution.

  •  Wide Vin (42V Load dump capable)
  •  1/32 Microstepping built in indexer (smooth quiet motion)
  •  DRV8824 On-chip protection enables higher system reliability
  •  VM sleep mode minimizes power consumption (battery drain)
  •  Step / Direction control interface (2x GPIO pins)
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Design files & products

Design files

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

TIDU316.PDF (270 K)

Reference design overview and verified performance test data

TIDU315.PDF (1217 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

TIDC397.ZIP (428 K)

Detailed schematic diagram for design layout and components

TIDR563.PDF (440 K)

Detailed schematic diagram for design layout and components

TIDR564.PDF (82 K)

Detailed schematic diagram for design layout and components

TIDR565.PDF (128 K)

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

TIDC395.ZIP (226 K)

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


Includes TI products in the design and potential alternatives.

Linear & low-dropout (LDO) regulators

TPS777750-mA, 10-V, low-dropout voltage regulator with enable & RESET with delay

Data sheet: PDF
MSP430 microcontrollers

MSP430F16128 MHz MCU with 55KB Flash, 5KB SRAM, 12-bit ADC, Dual 12-bit DAC, comparator, DMA, I2C/SPI/UART

Data sheet: PDF
Stepper motor drivers

DRV882445-V, 1.6-A bipolar stepper motor driver with current regulation and 1/32 microstepping  

Data sheet: PDF | HTML

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Evaluation board

DRV8824EVM — DRV8824 Evaluation Module

The DRV8824EVM is a stepper motor controller evaluation module that includes device, cabling and software to ease the evaluation of the device when driving a customer's motor.

User guide: PDF
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Technical documentation

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Type Title Date
* Design guide TIDA-00146 Overview Apr. 29, 2014
Test report TIDA-00146 Test Results Apr. 29, 2014

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