DRV8701: Output impedance of SO pin

masahiko shimizu

Guru 11235 points

Part Number: DRV8701

Hi,

Could you let me know the output impedance of SO pin, please?

Best regards,
Shimizu

over 6 years ago

0 Rick Duncan over 6 years ago

TI__Guru** 114905 points

Hi Shimizu-san,

The output impedance will vary depending on the load.

From section 7.3.4 of the datasheet:

The SO pin can source up to 5 mA of current. If the pin is shorted to GND, or if a higher-current load is driven by this pin, the output acts as a constant-current source. The output voltage is not representative of the H-bridge current in this state.

0 masahiko shimizu over 6 years ago in reply to Rick Duncan

Guru 11235 points

Hi Rick-san,

Could you let me know the maximum output impedance, please?

Customer want to decide whether this impedance is accept to AD converter or not.

Best regards,
Shimizu

0 masahiko shimizu over 6 years ago in reply to masahiko shimizu

Guru 11235 points

Hi Rick-san,

How is the progress about this question?

Best regards,
Shimizu

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DRV8701: Output impedance of SO pin