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User22801
Level 2
Level 2
10 questions asked 5 questions asked First question asked
TLE9185QX/TLE9185QXV33
Does the VS/VSINT overvoltage brake feature protect the application when the module is unpowered?

The following situation might happen:
- The module is unpowered during the assembly process of the vehicle
- At the same time the trunk lid is manually closed
Even if the battery is disconnected, the motor actually operates as a generator, causing VS/VSINT to increase.
When the supply voltage is above the power-on reset threshold, the device wakes up and the VS/VSINT overvoltage brake feature is enabled by default. When the VS/VSINT overvoltage brake threshold is reached, the low-sides MOSFETs are turned on, stopping the increase of the supply voltage.
Therefore, the VS/VSINT overvoltage brake is available, even if the module is unpowered.
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