Uploaded July 2026 | Updated September 2026, 1 week ago

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When the main battery of the car fails due to collision, battery damage, or circuit failure, the backup battery can provide power for unlocking the doors as an independent power source, ensuring that the doors can be opened in an emergency. In the video will demonstrate a solution using the LM51772-Q1 buck-boost controller.
View LM51772-Q1
ti.com/product/LM51772-Q1
Battery or Capacitor Backup Operation with the LM51772
ti.com/lit/pdf/sdaa068