High Side Switch Controller

The galvanic isolated octal high side smart power switch enhances diagnostics and system management by providing a 20 mhz spi port allowing both per channel over temperature signalization and efficient daisy chaining of multiple devices.

High side switch controller.

The max14922 is a high side n channel fet controller for implementing industrial high side switches for switching ground connected loads. This transistor connects between v and the load. A power good output indicates the status of the process side power supply. This requires both a robust low on resistance power switch and accurate analog circuitry for diagnostic protection and control functions.

Because of how transistors work these can be a little more difficult to use in an arduino or raspberry pi circuit. The n channel power mosfets typically have one third the on resistance of p channel mosfets of similar size and cost. They belong to an expanding family designed to control protect and diagnose various types of loads with enhanced precision in bcm ecu or junction boxes. Typically these use a pnp bjt or p channel mosfet.

The opposite of the low side switch is the high side switch. High side switches can safely drive high currents into complex resistive inductive and capacitive grounded loads in compliance with the harsh automotive environment. The device enlarges st s family of galvanic isolated high side switches.