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  • DRV421EVM: Sensor sensitivity

    TI Thinks Resolved
    Part Number: DRV421EVM Other Parts Discussed in Thread: DRV421 Hi Team, Our customer would like to know the sensitivity of this sensor. And in addition, the customer would also like to understand the point why the coil wires are connected to the PCB board…
    • Answered

  • DRV421EVM: Could you provide gerber file of DRV421EVM?

    Resolved
    Part Number: DRV421EVM Hi TI experts, Could you provide gerber file of DRV421EVM? Thanks Downey Kim.
    • Resolved

  • DRV421EVM: Expected noise floor for this chip?

    TI Thinks Resolved
    Part Number: DRV421EVM Other Parts Discussed in Thread: DRV421 , DRV425 I'm working with the DRV421 evaluation module, attempting to measure a relatively low current of ~50 mA. I'm able to read the signal, but there is also significant noise in the…
    • Answered

  • DRV421EVM: Core design in very small current measurements (1uA to 5mA)

    Resolved
    Part Number: DRV421EVM Other Parts Discussed in Thread: DRV421 , DRV425 Hello, I'm trying to test the idea of measuring a very small current signal through a toroid of some sort. I do not want to use a shunt. The current would be on the order of 5 to…
    • Resolved

  • DRV421EVM: Improvement of substrate

    TI Thinks Resolved
    Part Number: DRV421EVM We purchase about ten of DRV421EVM and are examining a current sensor. From the business and technical aspects, I would like to discuss directly with the person in charge. I would like to talk directly about the content beyond this…

  • DRV421EVM: Suitability for LMG3411

    TI Thinks Resolved
    Part Number: DRV421EVM Other Parts Discussed in Thread: DRV421 , INA253EVM , , DRV425 , INA253 , AMC1300 , AMC1200 , DRV5053 , AMC1301EVM , DRV425EVM Hello, We have LMG3411EVM-18 daughter boards and we want to use them in closed current loop mode. We found 2 EVMs…

  • DRV421EVM: DRV421EVM

    TI Thinks Resolved
    Part Number: DRV421EVM Other Parts Discussed in Thread: DRV421 Hi, Am developing a residual current sensor 1-20mA AC/DC and having issues with magnetic shielding as well as the minimum sensitivity of the sensor. 1. The Earth's magnetic field causes the…

  • RE: DRV421: Very high offset drift compared to typical value in datasheet

    Hello CSC, The instability could change more than the offset as this is a closed loop system it could start oscillating and give invalid results. This can change with temperature or vary from device to device. I placed some documents below and highlighted…
    • Answered

  • DRV421EVM functionality problem

    Resolved
    Other Parts Discussed in Thread: DRV421EVM , DRV421 Hi, I observed two problems during testing of DRV421EVM. 1) As shown in below figure if I connect let say S2 (in kit) to CL2 (compensation coil over core) and S1 to CL1, board takes 10mA while on interchanging…
    • Resolved
    • Answered

  • magnetic core module used with DRV421EVM

    Resolved
    Other Parts Discussed in Thread: DRV421EVM , DRV421 HI The middle of this link has magnetic core module used with DRV421EVM. www.tij.co.jp/.../nw69_drv421.page Coil [ SC2912] of Sumida corporation is used in this module. Do you know why this coil is selected…
    • Resolved

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