一个智能电源IC与反向电池保护的高侧电磁驱动器

Proceedings of International Symposium on Power Semiconductor Devices and IC's: ISPSD '95 Pub Date : 1995-05-23 DOI:10.1109/ISPSD.1995.515072

K. Sakamoto, Y. Nunogawa, R. Takeshita, K. Satonaka, T. Koda, S. Horiuchi

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引用次数: 4

摘要

介绍了一种采用结隔离结构的高可靠快速开关智能电源IC (IPIC)。该IPIC提供内置的反向电池保护，这对于汽车电源开关至关重要，不仅适用于通常的12v电池系统，也适用于大型车辆中使用的24v电池系统。这种保护是通过集成一个高压MOSFET来实现的，以避免寄生二极管的作用。这种IPIC的另一个显著特点是，感应负载的关断时间减少到传统IPIC的三分之二。这是通过将持续负输出电压的绝对值从-18 V增加到-34 V来实现的。这种新的IPIC对于汽车电子设备中经常使用的高侧螺线管驱动器非常有用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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An intelligent power IC with reverse battery protection for high-side solenoid drivers

A highly reliable and fast switching intelligent power IC (IPIC) for high-side switches that uses a junction isolation structure is described. This IPIC provides built-in reverse battery protection, which is essential for automotive power switches, not only in usual 12-V battery systems but also in the 24-V battery systems used in large vehicles. This protection is accomplished by integrating a high voltage MOSFET to avoid parasitic diode action. The other notable feature of this IPIC is that the turn-off time for the inductive load is reduced to two-thirds that of a conventional IPIC. This is achieved by increasing the absolute value of the sustained negative output voltage from -18 V to -34 V. This new IPIC is useful for high-side solenoid drivers frequently used in automotive electronics.

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Proceedings of International Symposium on Power Semiconductor Devices and IC's: ISPSD '95

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