TIDA-020001

TIDA-020001

Design files

Overview

This local dimming backlight reference design conserves power, extends the life of liquid-crystal displays (LCDs), and enhances automotive display quality through high dynamic range (HDR) or localized dimming technology. Seven multi-channel constant-current LED drivers allow for 144-zone localized dimming via pulsewidth modulation (PWM) on-time and current-level brightness configuration. A single serial interface allows daisy-chaining of the LED drivers for brightness and configuration programming. Temperature and ambient light sensors enable sensing of the surrounding conditions to protect from overtemperature scenarios and adjust the global brightness based on ambient brightness.

Features
  • Individually dim backlight zones saves power, prevents backlight bleed, and realizes HDR and local dimming solutions
  • High-voltage transient and reverse battery protection
  • Ambient light sensing with excellent human eye spectral response matching with strong IR rejection (<1%)
  • Dynamically adjusts backlight brightness on logarithmic scale based on human eye and perception of brightness
  • Direct-lit backlight configuration
  • Single-chip sensing solutions without thermistors or photo-diodes
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Design files & products

Design files

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

TIDUEA1.PDF (5914 KB)

Reference design overview and verified performance test data

TIDRX86.PDF (435 KB)

Detailed overview of design layout for component placement

TIDRX85.PDF (37 KB)

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

TIDRX88.ZIP (2155 KB)

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

TIDCEW8.ZIP (1775 KB)

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

TIDRX87.PDF (3080 KB)

PCB layer plot file used for generating PCB design layout

TIDRX84.PDF (498 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

Analog temperature sensors

LMT87-Q1 — Automotive ±2.7°C 2.7V to 5.5V analog output temperature sensor with -13.6 mV/°C gain

Data sheet: PDF | HTML
Automotive LED drivers

TLC6C5716-Q1 — Automotive 16 channel Full diagnostics constant current RGB LED driver

Data sheet: PDF | HTML
Automotive LED drivers

TLC6C5724-Q1 — Automotive 24 channel Full diagnostics constant current RGB LED driver

Data sheet: PDF | HTML
DC/DC converters

LMR14030-Q1 — SIMPLE SWITCHER® Automotive 40-V, 3.5-A, 2.2-MHz step-down converter with 40-uA IQ

Data sheet: PDF | HTML
Ideal diode & ORing controllers

LM74700-Q1 — 3.2-V to 65-V, 80-uA IQ automotive ideal diode controller

Data sheet: PDF | HTML
Light sensors

OPT3001-Q1 — Automotive digital ambient light sensor (ALS) with high-precision human-eye response

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TPS7A52-Q1 — Automotive 2-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout (LDO) voltage regulator

Data sheet: PDF | HTML
Load switches

TPS22918-Q1 — 1-ch, 5.5-V, 2-A, 52-mΩ automotive load switch with adj. rise time and adj. output discharg

Data sheet: PDF | HTML

Start development

Hardware development

Development kit

LAUNCHXL-F28379D — F28379D LaunchPad™ development kit for C2000™ Delfino™ MCU

This local dimming backlight reference design conserves power, extends the life of liquid-crystal displays (LCDs), and enhances automotive display quality through high dynamic range (HDR) or localized dimming technology. Seven multi-channel constant-current LED drivers allow for 144-zone localized (...)
Supported products & hardware

Supported products & hardware

Hardware development
Reference design
TIDA-010025 — Three-phase inverter reference design for 200-480 VAC drives with opto-emulated input gate drivers TIDA-010026 — Robust interface reference design for EnDat2.2 absolute encoders TIDA-01401 — High EMC immunity RS-485 interface reference design for absolute encoders TIDA-01540 — Three-Phase Inverter Reference Design Using Gate Driver With Built-in Dead Time Insertion TIDA-01541 — High-Bandwidth Phase Current and DC-Link Voltage Sensing Reference Design for Three-Phase Inverters TIDA-01629 — 48V/500W Three-phase Inverter with Smart Gate Driver Reference Design for Servo Drives TIDA-01630 — High EMC Immunity RS485 Interface Reference Design for Tamagawa Encoders TIDA-01633 — Compact Programmable 4-20mA and +/-10V Analog Output Reference Design for AC/Servo Drives TIDA-020001 — Automotive 144-Zone Local Dimming Backlight Reference Design TIDA-060001 — SunSpec Rapid Shutdown Transmit and Receive Reference Design TIDM-02007 — Dual-axis motor drive using fast current loop (FCL) and SFRA on a single MCU reference design TIDM-1008 — EnDat 2.2 Absolute Encoder Master Interface Reference Design for C2000 MCUs TIDM-1010 — BiSS-C Absolute Encoder Master Interface Reference Design for C2000 MCUs TIDM-1011 — Tamagawa T-Format Absolute Encoder Master Interface Reference Design for C2000 MCUs
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LAUNCHXL-F28379D — F28379D LaunchPad™ development kit for C2000™ Delfino™ MCU

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Latest version
Version: null
Release date:
Hardware development
Reference design
TIDA-010025 — Three-phase inverter reference design for 200-480 VAC drives with opto-emulated input gate drivers TIDA-010026 — Robust interface reference design for EnDat2.2 absolute encoders TIDA-01401 — High EMC immunity RS-485 interface reference design for absolute encoders TIDA-01540 — Three-Phase Inverter Reference Design Using Gate Driver With Built-in Dead Time Insertion TIDA-01541 — High-Bandwidth Phase Current and DC-Link Voltage Sensing Reference Design for Three-Phase Inverters TIDA-01629 — 48V/500W Three-phase Inverter with Smart Gate Driver Reference Design for Servo Drives TIDA-01630 — High EMC Immunity RS485 Interface Reference Design for Tamagawa Encoders TIDA-01633 — Compact Programmable 4-20mA and +/-10V Analog Output Reference Design for AC/Servo Drives TIDA-020001 — Automotive 144-Zone Local Dimming Backlight Reference Design TIDA-060001 — SunSpec Rapid Shutdown Transmit and Receive Reference Design TIDM-02007 — Dual-axis motor drive using fast current loop (FCL) and SFRA on a single MCU reference design TIDM-1008 — EnDat 2.2 Absolute Encoder Master Interface Reference Design for C2000 MCUs TIDM-1010 — BiSS-C Absolute Encoder Master Interface Reference Design for C2000 MCUs TIDM-1011 — Tamagawa T-Format Absolute Encoder Master Interface Reference Design for C2000 MCUs

Software development

Application software & framework

TIDCEW9 — TIDA-020001 Source Code

Supported products & hardware

Supported products & hardware

Hardware development
Reference design
TIDA-020001 — Automotive 144-Zone Local Dimming Backlight Reference Design

TIDCEW9 — TIDA-020001 Source Code

close
Latest version
Version: 01.00.00.00
Release date: Oct 3, 2018
Hardware development
Reference design
TIDA-020001 — Automotive 144-Zone Local Dimming Backlight Reference Design

Release Information

The design resource accessed as www.ti.com/lit/zip/tidcew9 or www.ti.com/lit/xx/tidcew9/tidcew9.zip has been migrated to a new user experience at www.ti.com/tool/download/TIDCEW9. Please update any bookmarks accordingly.

Technical documentation

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* Design guide Automotive 144-Zone Local Dimming Backlight Reference Design Oct 4, 2018

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