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DRV5015: Recommendation one which has similar magnetic threshold pint(Bop =0.7mT) with DRV5015, but lower Icc

Yue TANG
Expert 8705 points
Part Number: DRV5015
Other Parts Discussed in Thread: DRV5032, DRV5012, DRV425

Hi Team,

 My customer was searching for a hall sensor which has similar magnetic threshold pint(Bop =0.7mT) with DRV5015A1, but lower Icc. DRV5105A1  has 2mA Icc, it is too big for battery power application.

other SPEC, unipolar  and no latch.  please kindly recommend one. thanks. 

  • 0
    TI__Mastermind 26205 points
    Hello Yue,

    Thank you for using the TI forum. For our Hall latch products, the DRV5012 is good for low power applications, however, the typical sensitivity is ±2mT, so you may need to either get a stronger magnet or move the sensor closer to your magnet. If you do not specifically need a latch, then the DRV5032 is our low power Hall switch, which has multiple sensitivity options and also a dual output option.
  • 0 in reply to Mitch M
    TI__Expert 8705 points
    Hi Mitch,
    Thanks. actully, DRV5032 is the first one coming up to my mind. but, this is a simple upgrade project in my customer. they don't want to change the magnet. under the 40mm distance condition, their experience of the sensitivity is ±1mT or less. do you think we have matchable products?
  • 0 in reply to Yue TANG
    TI__Mastermind 26205 points
    Hello Yue,

    We do not currently have a device that is low power with ±1mT sensitivity. However, you still have a few options that allow you to keep your existing magnet:

    1. Use one of our existing low power parts (DRV5032 or DRV5012), and simply move the sensor closer to the existing magnet.

    2. Use one of our other Hall devices (www.ti.com/.../products.html) that fit your sensitivity requirements, and only turn power on to the device when you need to take a measurement (to save power), if you are able to do so for your application.

    For option 2, you may also consider using the DRV425 (Fluxgate Sensor), which is a high precision, high sensitivity, linear sensor with a full scale range of ±2mT (so detecting ±1mT would be very doable).