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Toshiba Launches New In-Vehicle Optical Relay TLX9152M For Electric Vehicle BMS

Oct 07, 2024      View: 508

Toshiba Electronic Components and Storage Corporation (" Toshiba ") announced the launch of an in-vehicle optical relay [1] for high-voltage automotive battery applications - the "TLX9152M". The new device comes in a SO16L-T package with an output voltage of up to 900 V (minimum). The product recently began to support bulk shipments.


Reducing charging times and increasing range are critical to driving the adoption of electric vehicles, both of which need to be achieved by improving the operating efficiency of battery systems. The battery management system (BMS) enables efficient system operation by monitoring the state of the battery charge and the insulation between the battery and the car body, which is essential for the safe use of high-voltage batteries. In BMS where high voltages need to be handled, the use of electrically isolated optical relays is essential.


The optical relays commonly used in battery systems must have a voltage resistance of approximately twice the system voltage. Therefore, an output voltage of more than 800 V is necessary for 400 V systems. The TLX9152M is suitable for 400 V systems with a 900 V output withstand voltage/supply voltage.

The TLX9152M comes in a SO16L-T package, which is widely used in high-voltage photorelays, including the Toshiba TLX9160T with output voltage withstand up to 1500 V. This package is helpful to realize the universality of circuit board pad design.



Description


Toshiba TLX9152M consists of an infrared emitting diode optically coupled to a photo-MOSFET in a SO16L-T package.
This coupler uses high voltage MOSFET between output terminals, making it suitable for battery-related control applications.


Applications


● Battery Control in Automotive Equipment
● Fuel Battery Control in Automotive Equipment
● Application for Electrical Vehicle


Features


● Normally open (1-Form-A) device
● Peak off-state voltage: 900 V (min)
● Trigger LED current: 3 mA (max)
● On-state current: 50 mA (max)
● On-state resistance: 250Ω (max)(@t < 1s)
● Isolation voltage: 5000 Vrms (min)
● Clearance distance: 8 mm (min)
● Creepage distance: 8 mm (min)
● Insulation thickness: 0.4 mm (min)
● Outer resin: CTI > 600
● AEC-Q101 qualified


Note:


[1] In an optical relay, the primary (control) side and secondary (switching) side are electrically isolated. Control switches directly connected to AC lines and between different ground potential devices through isolation barriers.

* Other company names, product names and service names may be trademarks of their respective companies.
* Product prices and specifications, service content and contact information in this document are current at the date of announcement, but are subject to change without notice.


About Toshiba Electronic Components and Storage Co., LTD


Toshiba Electronic Components & Storage Corporation is a leading supplier of advanced semiconductor and storage solutions, with more than half a century of experience and innovation to provide customers and partners with outstanding solutions in discrete semiconductors, system LSI and HDD.


With 22,200 employees around the world dedicated to maximizing the value of their products, Toshiba Electronic Components & Storage Corporation attaches great importance to close collaboration with customers to promote value creation and jointly explore new markets. The company now has annual sales of more than 797.1 billion yen (US $4.96 billion). Looking forward to building and contributing to a better future for people around the world.



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