MAX21610

PRODUCTION

16-Channel Automotive Local-Dimming Backlight Driver with SPI Interface

16-Channel 100mA LED Local Dimming Driver Provides Full Diagnostics through SPI

Data Sheet (Rev. 7) Product Selection Table
Viewing:

Overview

  • High Integration
    • Complete 16-Channel Solution with Independent Dimming and Daisy-Chain Option
    • SPI Control for Minimum Parts Count
  • Robust and Low EMI
    • Programmable Spread Spectrum On Outputs
    • Slew-Rate Controlled Switching On LED Outputs
    • Programmable Phase Shift Between Outputs
  • Relative Dimming Ratio Between Strings Up to 32768:1
  • Latch Input (RST_LAT) for Synchronization to Video Frame
  • FB Output to Control External Power Supply for Minimum System Power Dissipation
  • 1% Accurate Output Current
  • Complete Diagnostics
    • LED Open/Short Detection and Protection
    • Power Supply Overvoltage Protection
    • Thermal Warning
    • Thermal Shutdown
  • Compact 32-Pin TQFN 5mm x 5mm Package

The MAX21610 is a 16-channel modular backlight driver for use with automotive displays. The integrated current outputs can sink up to 100mA LED current, each depending on the ambient temperature. Device power comes from an external 3.3V or 5V supply, while the LED current-sink outputs can operate at up to 17V.

A feedback output pin (FB) is provided to control an external DC-DC converter so that voltage headroom can be optimized and the overall system power dissipation reduced.

The global LED current for all strings is set through a serial peripheral interface (SPI), with individual PWM settings for each of the channels. The PWM frequency can be determined using the internal oscillator or by synchronizing to the external CLKIO input.

The device features a high-speed SPI interface for control. Up to 10 devices can be daisy-chained to reduce connection complexity.

The MAX21610 is available in a TQFN package and operates in the -40 to 125°C temperature range.

Applications

  • Central Information Displays
  • Infotainment Displays
  • Instrument Clusters
MAX21610
16-Channel Automotive Local-Dimming Backlight Driver with SPI Interface
pdp-image-unavailable
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project
Ask a Question

Documentation

Data Sheet 1

Technical Articles 4

Request an NDA

Complete documentation is available upon completion of a Non-Disclosure Agreement (NDA).

Request an NDA
Learn More
Add to myAnalog

Add media to the Resources section of myAnalog, to an existing project or to a new project.

Create New Project

Software Resources

Can't find the software or driver you need?

Request a Driver/Software

Tools & Simulations

Software Development 1

Evaluation Kits

MAX21610EVKIT

Evaluation Kit for the MAX21610

Buy Now View Details

Features and Benefits

  • SPI Programmability
  • Dedicated GUI
  • Proven PCB and Thermal Design
  • Fully Assembled and Tested

Product Details

The MAX21610 evaluation kit (EV kit) demonstrates the MAX21610 16-channel automotive local-dimming backlight driver with SPI interface for automotive displays.

The EV kit operates from a DC supply voltage between 3V and 5V (VSUPPLY) while the external LEDs can be powered either from the on-board MAX20077 buck converter or from the on-board MAX20048 buck-boost converter. An external power supply connected to EXTVDDLED can also be used. The EV kit can be configured to operate alone or with other MAX21610 EV kits in a daisy-chain arrangement.

The EV kit also demonstrates short-LED, open-LED, VDDLED undervoltage, overvoltage, and overtemperature fault protection.

The EV kit provides an SPI interface that can operate in conjunction with the MINIQUSB+* adapter board or a thirdparty SPI master. The EV kit also includes Windows®- compatible software that provides a simple graphical user interface (GUI) for exercising the features of the IC.

*Note: To be ordered separately.

Applications

  • Central Information Displays
  • Infotainment Displays
  • Instrument Clusters
MAX21610EVKIT
Evaluation Kit for the MAX21610

Latest Discussions

No discussions on MAX21610 yet. Have something to say?

Start a Discussion on EngineerZone®

Recently Viewed