Compact Industrial Octal 1A/Quad 2A High-Side Switch with Diagnostics

Industry's Smallest Octal Industrial 1A/Quad 2A High Side Switch with Diagnostics

Please check latest availability status for a specific part variant.


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.

MAX14916: Simplified Block Diagram MAX14916: Simplified Block Diagram Enlarge+

Key Features

  • 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


  • Industrial Digital Outputs
  • PLC Systems
Part NumberDigital Input/OutputµC Interface TypeChannelsVSUPPLY
Output Current
Driver TypeLTH Delay
HTL Delay
FeaturesOper. Temp.
minmaxtypmintyptyptypSee Notes
MAX14916 NEW!Digital OutputSerial8103621.1120High-Side1111
Low Power
Small Size
-40 to +125
$4.53 @1k
See All Digital I/O (12)
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.

MAX14916EVKIT: Evaluation Kit for the MAX14916

Quality and Environmental Data

Request Reliability Report for: MAX14916 
Lead-Free Package Tin (Sn) Whisker Reports
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

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.

Quality Management System >
Environmental Management System >


Related Resources

Compact Industrial Octal 1A/Quad 2A High-Side Switch with Diagnostics

  • Robustness and Smart Diagnostics
  • Reduces Power and Heat Dissipation
  • Flexibility