Low-Power, Ultra-Small IO-Link Device Transceiver

Low-Power, Ultra-Small, Robust IO-Link Transceiver

Please check latest availability status for a specific part variant.


The MAX14828 integrates the high-voltage functions commonly found in industrial sensors. The MAX14828 features one ultra low-power driver (C/Q) with active reverse-polarity protection. An auxiliary digital input is provided to allow firmware updates through a UART interface. Transient protection is simplified due to high voltage tolerance allowing the use of micro TVS.

The device features a flexible control interface. Pin-control logic inputs allow for operation with switching sensors that do not use a microcontroller. For sensors that use a microcontroller, an SPI interface is available with extensive diagnostics. For IO-Link operation, a UART interface is provided, allowing interfacing to the microcontroller UART. Finally, a multiplexed UART/SPI option allows using one serial microcontroller interface for shared SPI and UART interfaces.

The device includes on-board 3.3V and 5V linear regulators for low-noise analog/logic supply rails. The MAX14828 is available in a (4mm x 4mm) 24-pin TQFN package and a (2.5mm x 2.5mm) wafer-level package (WLP) and is specified over the extended -40°C to +125°C temperature range.
MAX14828: Functional Diagram MAX14828: Functional Diagram Enlarge+

Key Features

  • Low Power Dissipation for Small Sensors
    • 1.2Ω (typ) Driver On-Resistance
    • 50mW (typ) Power Dissipation When Driving 100mA Load
  • High Configurability and Integration Reduce SKUs
    • Auxiliary 24V Digital Input
    • Selectable Driver Current: 50mA to 250mA
    • SPI or Pin-Control Interface for Configuration and Monitoring
    • Multiplexed SPI/UART Interface Option
    • 5V and 3.3V Linear Regulators
    • Optional External Transistor Supports Higher Regulator Loads
    • Integrated LED Drivers
    • Pin and Software Compatible to MAX14827A
  • Robust Communication
    • 65V Absolute Maximum Ratings on Interface and Supply Pins Allows for Flexible TVS Protection
    • Glitch Filters for Improved Burst Resilience and Noise
    • Thermal Shutdown
    • Hot-Plug Supply Protection
    • Reverse Polarity Protection of All Sensor Interface Inputs/Outputs
    • -40°C to +125°C Operating Temperature Range


  • Industrial Sensors
  • IO-Link Sensors and Actuators
  • Safety Applications

See parametric specs for IO-Link Transceivers and Binary Drivers (15)

Part NumberFunctionsVCC
Logic-Level Supply Voltage
Integrated PowerProtection FeaturesPackage/PinsOper. Temp.
(min)(max)(typ)(See Notes)
MAX14828 Device Transceiver9652502.5 to 5.5
3.3V LDO
High Temp Warning and Shutdown
Hot Plug Supply Protection
Reverse Polarity
Selectable Overcurrent
Short Circuit
-40 to +125$2.94 @1k

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.

MAX14828EVKIT: Evaluation Kit for the MAX14828

Technical Documents

App Note 6965 How to Select a TVS Diode for Maxim's IO-Link Devices

Tools & Models

  • MAX14828 IBIS Model
  • Request Reliability Report for: MAX14828 
    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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