DRV8305-Q1: FIT rate & functional safety data

Abhishek Deshmukh

Prodigy 60 points

Part Number: DRV8305-Q1
Other Parts Discussed in Thread: DRV3245Q-Q1

Hi,

We need functional safety data FIT rate etc. for DRV8305-Q1 gate driver.

Can anyone provide.

Our application is ASIL B, BLDC motor controller.

Regards,

Abhishek D.

7 months ago

+1 Akshay Rajeev Menon 7 months ago

TI__Genius 15576 points

Hey Abhishek,

Please use the link below to search for the specific device FIT rate.

https://www.ti.com/quality/docs/estimator.tsp#resultstable

DRV8305-q1 does not meet the ASIL B requirements. We have DRV3245 which has similar structure to DRV8305-Q1 and goes up to ASIL D systems so it should work for a ASIL B requirements.

Best,

Akshay

0 Abhishek Deshmukh 7 months ago in reply to Akshay Rajeev Menon

Prodigy 60 points

Hello Akshay,

Thanks for the update.

How can we get detailed datasheet for DRV3245Q-Q1?

Also, can you share the excel calculators for this part?

Regards,

Abhishek D.

+1 Akshay Rajeev Menon 7 months ago in reply to Abhishek Deshmukh

TI__Genius 15576 points

Hey Abhishek,

You can request device info on the ti.com page for the driver.

https://www.ti.com/product/DRV3245Q-Q1

What calculators would you be looking for?

Best,
Akshay

0 Abhishek Deshmukh 7 months ago in reply to Akshay Rajeev Menon

Prodigy 60 points

Hello,

We are looking for any excel calculations available for DRV3245Q-Q1.

Calculation excel for charge pump, shunt etc.

Regards,

Abhishek D.

0 Anthony Lodi 7 months ago in reply to Abhishek Deshmukh

TI__Mastermind 18510 points

Hi Abhishek,

If you have specific calculations that you are trying to do for certain values you can let us know what these are and we can help guide you in how to calculate them. The datasheet provides recommended values for many of the external components such as the charge pump capacitors and other supporting capacitor values for the device. The shunt value will be dependent on the expected peak current in the system as well as the desired gain and ensuring the input voltage doesn't exceed the input pin ratings for the CSAs.

Regards,

Anthony Lodi

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DRV8305-Q1: FIT rate & functional safety data