Toshiba Electronics Europe TLX9910

The TLX9910 photocoupler is suitable for gating high-voltage power MOSFETs that are commonly used in solid-state relays. This combination enables high-voltage, high-current switching, which is difficult to achieve with integrated photorelays.

Automotive battery management systems (BMS) require significant power handling capabilities within MOSFETs, and suitable devices tend to require a higher gate-drive voltage.

The TLX9910 offers an open voltage (VOC) of 13.5V. Thereby, the choice of compatible MOSFETs is significantly increased. Using a single device reduces the component count, thereby reducing the size, weight and cost of the solution.

Key features

• Higher open-circuit voltage of min 13.5V @25°C
• Wide operating temperatures of -40°C to +125°C
• Isolation voltage rating 3750Vrms
• Discharge circuit integrated allows for direct FET Gate connection

Additional features

Advantages:  

• Suitable for gating high-voltage power MOSFETs e.g. in discrete solid-state relays implementations
• Offers a reduced component count, reducing the size, weight and solution cost
   

Benefits: 

• Choice of compatible MOSFETs (without a workaround) is significantly increased
• Enables high-voltage, high-current switching, which is difficult to achieve with integrated photorelays

Applications

• Solid-state relay (SSR) applications
• Automotive SSR applications
• Industrial applications
• Renewable energy