See datasheet for actual packaging/pinout drawings

Packaging

Package | PIN:

RTJ | 20

Temp:

Q (-40 to 125)

ECO Plan:

Green (RoHS & no Sb/Br)

DRV421RTJT


Integrated Fluxgate Magnetic Sensor IC for Closed-Loop Applications

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100 - 249 $ 4.40
250 - 499 $ 4.01
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750 - 999 $ 3.00
1000 - 9999 $ 2.59

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Texas Instruments DRV421RTJT

The DRV421 is designed for magnetic closed-loop current sensing solutions, enabling isolated, precise dc- and ac-current measurements. This device provides both, a proprietary integrated fluxgate sensor, and the required analog signal conditioning, thus minimizing component count and cost. The low offset and drift of the fluxgate sensor, along with an optimized front-end circuit results in unrivaled measurement precision.

The DRV421 provides all the necessary circuit blocks to drive the current-sensing feedback loop. The sensor front-end circuit is followed by a filter that can be configured to work with a wide range of magnetic cores. The integrated 250-mA H-Bridge drives the compensation coil, while doubling the current measurement range, compared to conventional single-ended drive methods. The device also provides a precision voltage reference and shunt sense amplifier to generate and drive the analog output signal.

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