Industrial Octal High-Side Switch

Industry's Smallest Octal Industrial High Side Switch

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The MAX14917 has eight high-side switches specified to deliver up to 700mA (min) continuous current per channel. The high-side switches have on-resistance of 120mΩ (typ) at 25°C ambient temperature.

The device has an SPI interface that can be daisy chained, allowing communication with multiple MAX14917 devices utilizing a common SPI chip select (active-low CS). There are also per-channel overload diagnostics provided through the SPI interface. Two watchdog timers provide an additional safety check of the master-to-device connectivity.

The MAX14917 features a 4 x 4 LED cross-bar matrix, which provides a visual indication of channel status and overload conditions for each channel, and an integrated line-to-ground and line-to-line surge protection provides robustness to the electrical stress as per IEC 61000-4-5 and requires only one TVS on VDD. The MAX14917 is available in a compact 48-pin 6mm x 6mm FC2QFN package.

MAX14917: Simplified Block Diagram MAX14917: Simplified Block Diagram Enlarge+

Key Features

  • Robust Solutions
    • 65V Absolute Maximum Supply Range
    • CRC Error Checking on the SPI Interface
    • Watchdog Timers for Monitoring SPI and SYNCH
    • Per Channel Overload Diagnostic and Protection
    • Loss of VDD or GND Protection
    • Thermal Shutdown Protection
    • Integrated ±1kV / 42Ω IEC 61000-4-5 Surge Protection
    • ±7kV / IEC 61000-4-2 Contact Discharge Method
    • ±30kV / IEC 61000-4-2 Air Discharge Method
    • -40° C to +125°C Operating Ambient Temperature
  • Reduces Power and Heat Dissipation
    • 120mΩ (typ) On-Resistance at TA = 25°C
    • 2.5mA (typ) Supply Current
    • Accurate Output Current Limiting
  • Flexible
    • SYNCH Input for Simultaneous Update of Switches
    • LED Driver Matrix for 16 LEDs, Powered from 3.0V to 36V
    • Internal Clamps for Fast Inductive Load Demagnetization
    • Daisy Chainable SPI
    • Flexible Logic Voltage Interface from 2.5V to 5.5V
    • Pin Compatible with the MAX14915 and MAX14916 in Daisy-Chain Configuration
  • Compact 6mm x 6mm FC2QFN Package


  • Industrial Digital Outputs
  • PLC Systems
  • Factory Automation
  • Building Automation
  • Industrial IoT

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX14917EVKIT: Evaluation Kit for the MAX14917
Request Reliability Report for: MAX14917 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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Related Resources

High-Side Switch Controller with Current Limiting

  • +9V to +70V Operating Supply Range
  • 5V / 50mA Integrated Linear Regulator
  • -40°C to +125°C Ambient Temperature Operating Range

Industrial Octal High-Side Switch

  • Robust Solutions
  • Reduces Power and Heat Dissipation
  • Flexible