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TIDA-00206

LED Display Driver with Serial Interface Reference Design

Design files

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
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Design files & products

Design files

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

download Test report — TIDA-00206
TIDU423.PDF (366 KB)

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

download Bill of materials (BOM) — TIDA-00206
TIDR831.PDF (109 KB)

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

download CAD/CAE symbol — TIDA-00206
TIDR832.ZIP (266 KB)

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

download Gerber file — TIDA-00206
TIDC494.ZIP (60 KB)

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

download Schematic — TIDA-00206
TIDR830.PDF (116 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

Stepper motor drivers

DRV8860 — 38V, 0.3A 8 channel low-side driver with open load detection

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 (...)

EVM user’s guide: PDF
Supported products & hardware

Supported products & hardware

Hardware development
Reference design
TIDA-00206 — LED Display Driver with Serial Interface Reference Design
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DRV8860EVM — DRV8860EVM - Evaluation Module for Octal, Low-Side Driver with Serial Interface

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TIDA-00206 — LED Display Driver with Serial Interface Reference Design
TI’s Standard Terms and Conditions for Evaluation Items apply.

Software

Firmware

TIDC495 — TIDA-00206 Firmware

Supported products & hardware

Supported products & hardware

Hardware development
Reference design
TIDA-00206 — LED Display Driver with Serial Interface Reference Design
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TIDC495 — TIDA-00206 Firmware

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Version: 01.00.00.00
Release date: Jun 25, 2014
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TIDA-00206 Firmware (zip)  — 53 K

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Reference design
TIDA-00206 — LED Display Driver with Serial Interface Reference Design

Release Information

The design resource accessed as www.ti.com/lit/zip/tidc495 or www.ti.com/lit/xx/tidc495/tidc495.zip has been migrated to a new user experience at www.ti.com/tool/download/TIDC495. Please update any bookmarks accordingly.

Technical documentation

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* Test report TIDA-00206 Test Results Jun 26, 2014

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