DRV8702D-Q1: IN1&IN2=0, GLA1 not be high

Stephen Ma

Part Number: DRV8702D-Q1
Other Parts Discussed in Thread: DRV8702-Q1,

Dears,

when i test DRV8702-Q1, I found when i set IN1&IN2=0, the GL1 is not high voltage level, it's a square wave, could you tell me why? thanks.

over 5 years ago

0 Rick Duncan over 5 years ago

TI__Guru** 114905 points

Hi Stephen,

What is the setting of the MODE pin?

Is the nFAULT pin asserting? If yes, does the nFAULT behavior match any of the Fault Responses in Table 8?

Have you tried more than one board?

What is the VM voltage?
Please provide a scope capture of the GL output, VM voltage, and nFAULT pins.
Please provide a schematic snippet showing the DRV8702D-Q1 and connections.

0 Rick Duncan over 5 years ago in reply to Rick Duncan

TI__Guru** 114905 points

Hi Stephen,

Do you have any updates?

0 Rick Duncan over 5 years ago in reply to Rick Duncan

TI__Guru** 114905 points

Hi Stephen,

We have not heard from you in some time and are assuming your question has been resolved. If it has not, please reply to this thread.

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DRV8702D-Q1: IN1&IN2=0, GLA1 not be high