Octal, High-Speed, Industrial, High-Side Switch

Industry's Lowest Latency and Fastest 24V Driver, Capable of 100kHz Switching Rate, Improves Factory Throughput

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The MAX14900E is an octal power switch that features per-channel configuration for high-side or push-pull operation. Low propagation delay, high-rate load-switching makes the device suitable for next-generation highspeed PLC systems. Each high-side switch sources 850mA continuous current with a low 165mΩ (max) on-resistance at 500mA at TA = +125°C. The high-side switches feature 2μs (max) input-to-output propagation delay when driving resistive loads. Long cables can be driven with switching rates of up to 100kHz for PWM/PPO control in push-pull operation. Multiple high-side switches can be connected in parallel to achieve higher drive currents. The device features a wide supply input range of 10V to 36V.

The MAX14900E is configured, monitored, and driven by an SPI and/or parallel interface. In parallel mode, eight logic inputs directly control the outputs and the serial interface can be used for configuration/monitoring. Serial mode utilizes the serial interface for both setting and configuration, and features CRC error detection to ensure robust SPI communication.

Current limiting and per-channel thermal shutdown protect each switch/driver. The device features a global diagnostics output as well as per-channel diagnostics and monitoring through the serial interface.

The MAX14900E is available in a 48-pin (7mm x 7mm) QFN-EP or standard 48-pin TQFN-EP package, and is specified over the -40°C to +125°C temperature range.

MAX14900E: Functional Diagram MAX14900E: Functional Diagram Enlarge+

Key Features

  • Low Power for High-Density Modules
    • 3mA (max) Total Supply Current
    • 165mΩ (max) High-Side RON at +125°C
  • Fast Switching Ideal for Accurate, High-Speed Control Systems
    • 2μs Propagation Delays (High-Side Mode)
    • 0.8μs Propagation Delays (Push-Pull Mode)
    • 100kHz (max) Push-Pull Mode Switching Rate
  • Extensive Fault Feedback Eases Maintenance and Reduces Installation Time
    • Global and Per-Channel Diagnostics
    • Open Load/Wire Detection
    • Thermal Shutdown Fault Indication
    • Output Logic State Feedback
    • Undervoltage Lockout
  • Small Packages with Serial Interface Allows Making High-Density Modules
    • Daisy-Chainable SPI Minimizes Isolation Cost
    • 7mm x 7mm, 48-Pin QFN and TQFN Packages


  • High-Density Digital Output Modules
  • Motor Controllers
  • Programmable Logic Controllers
  • PWM/PPO Control
Part NumberDigital Input/OutputµC Interface TypeChannelsVSUPPLY
Output Current
Driver TypeLTH Delay
HTL Delay
FeaturesOper. Temp.
MAX14900E Digital Output
Low Power
-40 to +125
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.

MAX14900DEVBRD: Evaluation Kit for MAX14900E

CAD Symbols and Footprints

  • MAX14900EAGM+CKH
  • 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.

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