TIDA-00144

Automotive HVAC Damper Motor Control

TIDA-00144

Design files

Overview

TIDA-00144 reference design consists of a 1.6A, dual H-bridge motor driver and a small number of external components that can drive up to two brushed DC motors found in automotive HVAC damper motor applications. This design features off battery capabilities with 45V maximum operating supply voltage. Along with, internal shutdown functions provided for overcurrent protection, short circuit protection, under voltage lockout and over temperature.

Features

Wide Vin (42V Load dump capable)
Simple, 2 pin control interface for motor operation
On-chip protection enables higher system reliability
Sleep function minimizes power consumption (battery drain)

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Design files & products

Design files

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

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Design guide — TIDA-00144

TIDU289.PDF (268 K)

Reference design overview and verified performance test data

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Test report — TIDA-00144

TIDU288A.PDF (1018 K)

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

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Schematic — TIDA-00144

TIDC368.ZIP (551 K)

Detailed schematic diagram for design layout and components

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Schematic — TIDA-00144

TIDR521.PDF (440 K)

Detailed schematic diagram for design layout and components

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Schematic — TIDA-00144

TIDR522.PDF (220 K)

Detailed schematic diagram for design layout and components

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Bill of materials (BOM) — TIDA-00144

TIDR523.PDF (125 K)

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

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Gerber file — TIDA-00144

TIDC367.ZIP (226 K)

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

Products

Includes TI products in the design and potential alternatives.

Linear & low-dropout (LDO) regulators

TPS777 — 750-mA, 10-V, low-dropout voltage regulator with enable & RESET with delay

Data sheet: PDF

MSP430 microcontrollers

MSP430F1612 — 8 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

DRV8802 — 45-V, 1.6-A dual H-bridge motor driver with current regulation

Data sheet: PDF | HTML

Start development

Hardware

Evaluation board

DRV8802EVM — DRV8802 Evaluation Module

The DRV8802 evaluation module consists of a 1.6A, dual H-bridge motor driver and a small number of external components that can drive up to two brushed DC motors. The on-board MSP430 MCU plus software & GUI provide all the necessary signaling and control. With this EVM, designers can quickly and (...)

User guide: PDF