MAX25503

推荐用于新设计

4 x 24 Automotive LED Matrix Driver

数据手册 (Rev. 0) 产品选型表
产品技术资料帮助

ADI公司所提供的资料均视为准确、可靠。但本公司不为用户在应用过程中侵犯任何专利权或第三方权利承担任何责任。技术指标的修改不再另行通知。本公司既没有含蓄的允许，也不允许借用ADI公司的专利或专利权的名义。本文出现的商标和注册商标所有权分别属于相应的公司。
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概述

  • Flexible Configuration
    • Programmable Multiplex Ratio between 4:1 and1:1
    • ntegrated Column Drivers
    • Programmable Dither for Enhanced Resolution
    • Optional Individual Programmable Delays
    • Optional Pseudorandom Spread Spectrum onEach Output
  • 24 Row Drivers
    • Up to 65mA Peak Output Current
    • Very Narrow Minimum Current Pulse forMaximum Dimming Ratio
    • Optional Ghosting Elimination
  • Extensive Diagnostics
    • Shorted or Open LEDs
    • Programmable VLED Overvoltage Detection withFlag
    • Shorted SNK_ or SRC_ to GND
    • ISET out of Range
    • Thermal Warning/Shutdown
  • FB Output to Control External DC-DC Converter
  • High-Speed SPI Interface
  • VSYNC Synchronization Input (Programmable ActiveHigh/Low)
  • •48-Lead TQFN and TSSOP Packages
  • AEC-Q100 Grade 1

The MAX25503 is a 4 x 24-channel modular matrix driver. The integrated current outputs can sink up to 65mA LED current each. The source drive pins provide current to the columns of the matrix on a multiplexed basis. 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 the LED current, individual PWM settings, and multiplex ratio.

The high-speed interface can be used to control up to 16 devices.

The MAX25503 is available in TQFN and TSSOP packages and operates in the -40°C to +125°C temperature range.

APPLICATIONS

  • Central Information Displays
  • Instrument Clusters
  • Interior Lighting
  • Exterior Rear Lighting
MAX25503
4 x 24 Automotive LED Matrix Driver
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参考资料

数据手册 1

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