Diodes launches automotive IntelliFET high-side power switches
Diodes Incorporated has expanded its IntelliFET portfolio with three second-generation automotive-compliant high-side power switches designed to provide safer, more reliable control of 12V vehicle electrical systems.
The new ZXMS81030SPQ, ZXMS82030S14PQ and ZXMS82045S14PQ combine power switching, integrated protection and diagnostic functions to simplify the design of automotive load-control circuits. Designed to handle high inrush currents, the devices offer a compact, high-reliability alternative to conventional relays, fuses and discrete component solutions.
Target applications include motors in automotive body and seat control modules, heating, ventilation and air conditioning (HVAC) systems, and vehicle lighting.
Integrated protection for demanding automotive applications
Each IntelliFET device combines a vertical DMOS N-channel MOSFET with an integrated controller to manage switching and protect both the device and its connected load.
Protection features include short-circuit protection, inrush current management and overvoltage protection, including safeguards against automotive load dump conditions. The switches also incorporate overtemperature protection with automatic restart and protection against electrostatic discharge (ESD).
Additional protection against loss of ground and reverse polarity can be implemented using minimal external components, helping to reduce circuit complexity and the number of components required in the final design.
Integrated diagnostics provide monitoring of fault conditions and device protection events. These include open-load detection, overload and overtemperature shutdown, giving engineers greater visibility of potential problems within automotive electrical systems.
Compact packages for 12V power switching
The three devices are available in thermally efficient packages featuring exposed underside heatsinks to help manage heat dissipation.
The single-channel ZXMS81030SPQ is supplied in an SO-8EP package, while the dual-channel ZXMS82030S14PQ and ZXMS82045S14PQ are housed in SO-14EP packages.
