8-channel high-side driver with diagnostic feedback
The MAX14912AKN+T is an 8-channel high-side power switch from Analog Devices, designed to drive resistive, inductive, and capacitive loads in industrial and automotive systems.
Supply rails and interface options
The load supply (VL) spans 10.5 V to 36 V, covering standard 12 V, 24 V, and 28 V industrial buses. Control is via either SPI or parallel interface — the parallel mode provides a simple GPIO-driven on/off for each channel, while SPI adds readback of fault status and diagnostics.
Fault protection set and status flag
Integrated fault protection covers current limiting (fixed threshold), open-load detection, over-temperature shutdown, over-voltage clamp, and under-voltage lockout (UVLO) on the load supply. The Status Flag output (open-drain) asserts when any fault condition is detected, giving the system controller a single interrupt line rather than requiring continuous SPI polling. This protection set is typical for high-side drivers used in PLC digital outputs, valve drivers, and actuator control where a shorted load or open wire must be reported without destroying the switch.
The T suffix indicates Tape & Reel packaging; a Cut Tape option is also listed for prototype or low-volume builds.