As the development of electronic technology, more and more intelligent power devices are used in automotive electronic products. This paper introduces ST's intelligent power devices.
This document provides a general introduction to smart power technologies used in automotive powertrain and body electronics. It defines smart power circuits as those capable of delivering more than 0.5A, withstanding more than 50V, or supplying at least 1W to a load. The text discusses the evolution of auto electronics and the specific role of smart power ICs in modern vehicles.
The note details various technologies developed by STMicroelectronics, classifying them by process type (purely bipolar or mixed) and current flow direction (horizontal or vertical). It further explores the importance of package technology, including bonding methods using gold or aluminum wires, and specific package types like Isowatt and TABLESS for isolation and thermal management.
A circuit is considered smart power if it can deliver more than 0.5A to the load, withstand more than 50V, or supply at least 1W to the load.
Gold wires surrounded by resin allow for reliable operation with currents up to 2A.
Aluminum wires used for high currents must have a diameter ranging from 180 microns to 375 microns.