MAX25582

RECOMMENDED FOR NEW DESIGNS

38-Channel Local Dimming LED Driver with ASIL B Features

Data Sheet (Rev. 1) Product Selection Table
Viewing:

Overview

  • Flexible Configuration
    • Optional Individual Programmable Delays
    • Optional Pseudorandom Spread Spectrum on Each Output
  • 38 Low-Side Constant-Current Drivers
    • Up to 71mA Peak Output Current
    • 0.25V SNK_ Voltage Headroom
    • Very Narrow Minimum Current Pulse forMaximum Dimming Ratio
  • Extensive Diagnostics
    • LED Integrity Test
    • Shorted or Open LEDs
    • Shorted SNK_ to GND
    • Internal Clock Out-of-Range Detection
    • Bandgap Reference Out-of-Range
    • Undervoltage/Overvoltage Detection on All Supplies
    • Thermal Warning/Shutdown
  • FB Output to Control External DC-DC Converter
  • SPI Interface with CRC
  • VSYNC Synchronization Input (Programmable ActiveHigh/Low)
  • 7mm x 7mm, 48-Pin TQFN Package
  • AEC-Q100 Grade 1
  • ASIL B Compliant

The MAX25582 is a 38-channel low-side driver. The integrated current outputs can sink up to 71mA LED current each. Device power comes from an external 3.3V or 5V supply while the LED current-sink outputs can operate at up to 14V.

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 device is highly flexible due to its programmability using the SPI interface. Among the programmable parameters are LED current and individual PWM settings. The device features a high-speed interface for controlling up to 61 devices in a daisy-chain configuration.

The MAX25582 is available in a TQFN package and operates in the -40°C to +125°C temperature range.

Applications

  • Central Information Displays
  • Instrument Clusters
  • Interior Lighting
  • Exterior Rear Lighting
MAX25582
38-Channel Local Dimming LED Driver with ASIL B Features
MAX25582 Simplified Block Diagram MAX25582 Chip Illustration
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

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

Latest Discussions

No discussions on MAX25582 yet. Have something to say?

Start a Discussion on EngineerZone®

Recently Viewed