DRV5013: Asking for the hall sensor design suggestion

SHH

Part Number: DRV5013
Other Parts Discussed in Thread: DRV5032

Hi Sir,

My customer would like design hall sensor to meet the below condition to detect the case door open and close for the revised charge case design

Open: 7.2mT

Close: 16mT

DRV5013BC seems suitable one with threshold of 12mT on TI Web but with SOT23 package.

www.ti.com/.../products.html

Would you please provide suggestion on suitable one in terms of feature, low profile and low price?

BR,

SHH

over 3 years ago

0 Julio Apps over 3 years ago

TI__Expert 3665 points

Hi SHH,

For the magnetic field range that you are giving a Unnipolar device would be best in other wors a hall switch, the DRV5013 is a bipolar device, meaning it expects the opposite pole of the magnet to trigger its release point. Since your value given are only positive a Unipolar device like the DRV5032 would be best:

https://www.ti.com/lit/ds/symlink/drv5032.pdf?ts=1597426198703&ref_url=https%253A%252F%252Fwww.ti.com%252Fsensors%252Fmagnetic-sensors%252Fhall-effect-latches-switches%252Fproducts.html

But since we dont have a Unipolar device with the correct threshold for your application a the omnipolar version will work: DRV5032AJ

The range of Brp and Bop is fairly large and needs to be considered in the design, i dont think this device will work for them across temperature with the given threshold specificall for the 7.2mT open case. I would ask your customer why they have settled on this and flexibility in chaging this thresholds to make our sensor work.

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DRV5013: Asking for the hall sensor design suggestion