TIDA-00206

LED Display Driver with Serial Interface Reference Design

TIDA-00206

Design files

Overview

This reference design drives 8 seven-segment digits with brightness control using a low-cost MSP430 and two DRV8860 octal low-side drivers. The display module gains benefits from DRV8860 on wide-supply range, high-current capability, PWM brightness control, serial daisy-chain connection and expandable outputs for hundreds of LEDs. AThis reference design and six demo display patterns are provided with the on-board MCU program along with the integrated protection from short-circuit, under voltage, and over-temperature.

Features

Serial interface minimizes the number of signals
Drives eight characters with only two DRV8860 devices
Small PCB footprint
Extendable output current capability for super bright LEDs
Internal eight-level PWM duty for brightness control via serial interface
Six demo display patterns provided with the on-board MCU

Industrial

Personal electronics

AV receiver

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Design files & products

Design files

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

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Test report — TIDA-00206

TIDU423.PDF (365 K)

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

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Schematic — TIDA-00206

TIDR830.PDF (116 K)

Detailed schematic diagram for design layout and components

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Bill of materials (BOM) — TIDA-00206

TIDR831.PDF (108 K)

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

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CAD/CAE symbol — TIDA-00206

TIDR832.ZIP (265 K)

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

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Gerber file — TIDA-00206

TIDC494.ZIP (59 K)

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

Products

Includes TI products in the design and potential alternatives.

Stepper motor drivers

DRV8860 — 38-V, 0.3-A, octal low-side motor driver with serial control

Data sheet: PDF | HTML

MSP430 microcontrollers

MSP430G2302 — 16 MHz MCU with 4KB Flash, 256B SRAM, SPI/I2C, timer

Data sheet: PDF

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Hardware

Evaluation board

DRV8860EVM — DRV8860EVM - Evaluation Module for Octal, Low-Side Driver with Serial Interface

The DRV8860 provides an 8-channel low side driver with comprehensive protection and diagnosis. It offers flexible output configuration options to support different levels of load current with a simple Serial interface, which supports daisy-chain connection for multiple devices. Built-in (...)