Dual-channel high-side switches provide robust protection for automotive applications

Diodes Incorporated has released its first automotive-compliant, dual-channel, high-side power switches – the ZXMS82090S14PQ, ZXMS82120S14PQ, and ZXMS82180S14PQ – as an expansion of its IntelliFET self-protected MOSFET portfolio. These intelligent switches supply high power within a compact footprint while delivering robust protection and diagnostic capabilities. The series is created for driving 12V automotive loads, such as LEDs, bulbs, actuators, and motors in automotive body control and lighting systems.

The trio all feature a dual 41V-rated n-channel MOSFET array with onboard circuitry that safeguards against short circuits, manages inrush currents, and protects against overvoltage conditions, including load dumps. Also, the switches supply overtemperature protection with auto-restart, plus protection against electrostatic discharge damage. Loss of ground and reverse polarity protection can also be implemented with a few external components.

A dedicated current sense pin provides precise analog current monitoring of the outputs and fault indication for short-to-battery, short-to-ground, and open-load detection.

These devices provide efficient, reliable, smaller footprint alternatives to relays, fuses, and discrete circuits. They are also form, fit, and functional equivalents for existing power switch devices where customers require improved product supply.

The devices are qualified to AEC-Q100, manufactured in IATF 16949 certified facilities, and support PPAP documentation. They are provided in the thermally efficient SO-14EP package.