Industrial Octal High-Side Switch

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.

Applications

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

* 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