Solid-state relays improve EV safety while taking up less space

Solid-state relays improve EV safety while taking up less space

新产品 |
Texas Instruments (TI) has introduced a new portfolio of solid-state relays. These include automotive-qualified, isolated drivers and switches with high reliability. They are designed to help make electric vehicles (EVs) safer. At the same time, the new isolated solid-state relays enable space-saving powertrain systems and 800V battery management solutions - all at significantly lower material costs.
By Christoph Hammerschmidt

Share:

与中国TPSI3050-Q1隔离开关驱动程序ated 10 V gate power supply and the TPSI2140-Q1 isolated switch designed for 1,400 V and 50 mA are used for power supply and signal isolation via a single isolation barrier. They rely on a special concept that improves reliability while significantly reducing solution dimensions and costs compared to existing electromechanical relays and solid-state photo relays. The two devices are the first products in a new solid-state relay portfolio from Texas Instruments, which will also include ICs for high-voltage industrial applications.

“在TI,我们特别专注于为系统设计人员解决复杂隔离挑战的新方法。除其他事项外,随着行业移至800 V电池,目标是一方面创造可靠,安全操作的条件,同时还要减少解决方案的空间要求和成本。” Troy解释说。德州仪器的电力开关,界面和照明副总裁兼总经理Coleman。制造商主要通过将更多功能集成到其隔离技术中来实现这些目标。

在单个隔离屏障中,新的固态继电器可以与微秒内的负载连接并断开连接,而不是与机电继电器那样的毫秒。这可以使汽车部门中高压系统的更安全操作。TPSI3050-Q1提供高达5 kVRM的钢筋绝缘材料的持续时间比机电继电器长10倍,机电继电器的特性随着时间的推移而恶化。另一方面,TPSI2140-Q1的基本绝缘材料可达3.75 kVRM,因此可以达到固态继电器继电器继电器的时间依赖性介电强度的四倍以上。

Ti的新固态继电器将信号和电源线集成到单个组件中。

固态继电器将电源和信号传输组合成一个芯片,还可以使至少三个组件分配,从而大大降低了溶液尺寸,并允许将材料成本削减多达一半。例如,与具有机电继电器的溶液相比,TPSI3050-Q1通过将隔离电源,数字隔离器和一个组件中的栅极驱动器组合在一起,将空间需求降低了90%。在TPSI2140-Q1的情况下,与传统的照片继电器溶液相比,溶液尺寸最多可降低50%,因为除了信号场效应晶体管外,电阻还集成,并且还可以分配芦苇继电器。

Designed for high-voltage measurements and insulation monitoring, the TPSI2140-Q1 is used in conjunction with a Battery Pack Monitor such as the BQ79631-Q1 to detect insulation faults in 800 V battery management systems faster and more accurately than is possible with solid-state relay photorelays. The TPSI2140-Q1 allows the use of resistors with less than 1 MΩ and can handle over 300% higher avalanche currents than traditional motor relays, contributing to safer human-system interaction.

TPSI3050-Q1和TPSI2140-Q1设备可在Ti.com上专门提供,预售的数量分别为1.99美元和2.75美元(以1,000台为单位)。为了评估这些产品,提供了TPSI3050Q1EVM和TPSI2140Q1EVM评估模块www.TI.com每人$ 49。

https://www.ti.com/isolation

Linked Articles
汽车
10s
Baidu