Toshiba Electronic Devices & Storage Corporation (Toshiba) has introduced the TLX9150M, an automotive photorelay designed for use in 400V electric vehicle (EV) battery systems.
Featuring a minimum output withstand voltage of 900V, the photorelay is compliant with IEC 60664-1 standards and AEC-Q101 qualified.
As EVs incorporate higher-capacity, higher-voltage batteries to improve range and reduce charging time, battery management systems (BMS) play a critical role in ensuring safety and optimizing performance. The BMS monitors battery isolation, voltage, and system health to maximize battery life. In high-voltage BMS, electrically isolated photorelays provide essential isolation between the battery and vehicle body.
The TLX9150M photorelay addresses the demands of 400V systems with its 900V output withstand voltage, high isolation voltage of 5000Vrms, and reliable operation under transient conditions with an avalanche current rating of 0.6mA. Designed as a normally open (1-Form-A) device, the TLX9150M also incorporates Toshiba’s compact SO12L-T package, which is 25% smaller than the previous SO16L-T package, enabling more compact and cost-efficient battery unit designs. The package maintains the same pin pitch and layout as the SO16L-T, allowing seamless integration into existing circuit board designs.
Typical applications for the Toshiba TLX9150M photorelay include battery management systems for tasks such as battery voltage monitoring, mechanical relay sticking detection, and ground fault detection, as well as the replacement of mechanical relays in automotive systems.
Quantities of the Toshiba TLX9150M photorelay are now available for immediate customer shipment. For more detailed specifications, pricing, or additional information, please click here.
Source/Photo Credit: Toshiba Electronic Devices & Storage Corporation
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