概览

优势和特点

  • Robustness and Smart Diagnostics
    • 65V Absolute Maximum Supply Range
    • Internal Clamps for Fast Inductive Load Demagnetization
    • CRC Error Checking on the SPI Interface
    • Watchdog Timer
    • Open-Wire Detection, Both with Switches On and Off
    • Undervoltage Detection with UVLO
    • Loss of VDD or GND Protection
    • Thermal Shutdown Protection
    • Integrated ±1kV/42Ω IEC61000-4-5 Surge Protection
    • -40°C to +125°C Operating Ambient Temperature
  • Reduces Power and Heat Dissipation
    • 250mΩ (max) On-Resistance at TA = 125°C
    • 2mA (typ) Supply Current
    • Accurate Output Current Limiting
  • Flexibility
    • Addressable SPI Interface Reduces Isolation Cost
    • SYNCH Input for Simultaneous Update of Switches
    • LED Driver Matrix for 16 LEDs, Powered by 24V, 5V, or 3.3V
    • Flexible Logic Voltage Interface from 2.5V to 5.5V
  • Compact 6mm x 6mm QFN Package

产品详情

The MAX14916 has eight high-side switches specified to deliver up to 1.1A (min) continuous current per channel. The two adjacent channels can be paralleled to form four 2.4A high-side switches. The high-side switches have on-resistance of 250mΩ (max) at 125°C ambient temperature.

The SPI interface has a built-in chip addressing decoder, allowing communication with multiple MAX14916s utilizing a common SPI chip select (active-low CS pin pulled low).

The SPI interface provides flexibility for global and per-channel configuration and diagnostic, including undervoltage detection, open wire/load detection, overload and current limiting reporting, thermal conditions reporting, and more.

Open load detection detects both open-wire/open-load conditions with switches in the on and off states. LED drivers provide indication of per-channel fault, status, and supply undervoltage conditions. Internal active clamps allow for fast turn-off of inductive loads.

Integrated line-to-ground and line-to-line surge protection only requires a TVS on VDD. Integrated surge protection works for quad and octal configuration.

The MAX14916 is available in a compact 48-pin 6mm x 6mm QFN package.

Applications

  • Industrial Digital Outputs
  • PLC Systems

产品分类

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