Features and Benefits

  • Automotive Ready: AEC-Q100 Qualified
  • Six-Switch Matrix Manager Allows for Flexible Configuration
    • Single and Dual-String Configurations
    • Up to 6 Switches in Series for Single String
    • Up to 3 Switches in Series in Dual-String
    • Up to 3 LEDs per Switch
  • Robust Serial Interface
    • Multidrop UART Communication Interface
    • Up to 64 Addressable Devices
  • Optimal PWM Dimming Arrangement Provides Excellent Dimming Performance
    • Programmable 12-Bit PWM Dimming
    • Fade Transition Between PWM Dimming States
    • Internal Clock Generator or External Clock for PWM Dimming
  • EMI Mitigation
    • Programmable Slew Rate for EMI Control
    • Integrated Spread Spectrum Frequency Dithering
  • Protection Features and Package Improve Reliability
    • Open-LED Protection
    • Programmable Open and Short-LED Threshold
    • Open and Shorted-LED Fault Reporting
    • Open Trace Fault Reporting
    • Thermally Enhanced 20-Pin Side Wettable TQFN and 20-Pin TSSOP with Exposed Pad

Product Details

The MAX25606 6-switch matrix manager IC for automotive lighting applications includes a 6-switch array for bypassing individual LEDs in a single- or dual-string application. It features six individually controlled n-channel MOSFET switches with each switch having an on-resistance of 0.2Ω and rated to withstand 16V. A single current source can be used to power all the LEDs connected in series. Individual LEDs can be dimmed by turning on and off the bypass switches across each LED. The device can also be configured in two string applications with three switches in series per string. Each switch can be connected across one, two, or three LEDs in series. It also allows for parallel connection of two switches to bypass high-current LEDs. The IC also includes an internal charge pump that powers the gate drive for the switches.

The IC features a universal asynchronous receiver-transmitter (UART) communication interface. Each switch can be turned on, turned off, or PWM modulated with 12 bits of PWM duty cycle adjustment. Transitions between two different PWM settings can either happen instantly or a logarithmic fade transition can be applied. The logarithmic fade algorithm is built into the device and only requires a single software command. The IC features open-LED protection as well as open and short LED fault reporting through the serial interface. The device is available in a 20-pin 4x4mm side wettable TQFN and a 20-pin thin shrink small-outline package (TSSOP) with exposed pad. The device is AEC-Q100 grade 1 qualified and designed to operate over the full -40°C to +125°C temperature range.


  • Automotive Matrix LED Systems and Adaptive Drive Beam Lights

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.