Analog Devices MAX14828 Product Info

• 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

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.

Applications

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