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RLGeorge
Level 3
Level 3
10 likes given 10 questions asked 25 sign-ins

Please confirm that the Vsh limits in Table 76 are the minimum voltage across SH1 and SH2 that prevent enabling the opposing half bridge when changing directional output.

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Sahil_K
Moderator
Moderator
Moderator
First like given 100 solutions authored 250 sign-ins

Hi @RLGeorge ,

VSH (low/high) is the threshold value for the fast comparator used by the Bridge driver to measure the on and off delays between changes in the control signals and the corresponding slopes at the SHx pins. As shown in the below image.

Sahil_K_1-1704796115257.png

 

These measured values are stored in SFRs and used for further evaluation by software or by the adaptive control mode.

In adaptive control mode, these timing measurements are used to optimise the settings for the pre-charge and pre-discharge current in Sequencer mode.

For more information please refer to section 27 of the user manual.

Best Regards,
Sahil Kumar

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Sahil_K
Moderator
Moderator
Moderator
First like given 100 solutions authored 250 sign-ins

Hi @RLGeorge ,

VSH (low/high) is the threshold value for the fast comparator used by the Bridge driver to measure the on and off delays between changes in the control signals and the corresponding slopes at the SHx pins. As shown in the below image.

Sahil_K_1-1704796115257.png

 

These measured values are stored in SFRs and used for further evaluation by software or by the adaptive control mode.

In adaptive control mode, these timing measurements are used to optimise the settings for the pre-charge and pre-discharge current in Sequencer mode.

For more information please refer to section 27 of the user manual.

Best Regards,
Sahil Kumar

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