摘要
汽车电子系统设计人员在选择MOSFET器件时以前只有两种选择:没有任何保护措施的“简单”PowerMOS或具有完全保护的器件,后者在环境条件超出规定范围时会自动关闭,然而带有额外逻辑和保护电路的完全保护器件成本较高。因此,有些供应商开发了一种介于两者之间的适度集成的新型器件,在单芯片中结合了TrenchMOS技术以及温度和电流传感元件。其优点是不需要昂贵的智能功率器件即可为系统提供保护并节约空间。
Until recently, automotive designers who were looking for MOSFET devices had two choices open to them: either a 'simple' PowerMOShaving no protection strategies, or fully protected devices that automatically shut down if the environmental conditions move out ofspecification. However, fully protected devices with additional logic and protection circuitry come at a price. Some suppliers have beendeveloping a new kind of device that sits somewhere between the two, combining TrenchMOS technology and additional features such astemperature and current sensing elements monolithically integrated onto the chip. The benefits include the ability to protect the system andsave space without the need for expensive SMART power devices.
出处
《电子产品世界》
2003年第09B期29-30,共2页
Electronic Engineering & Product World
