DRV421RTJT

Electronic & Electrical Components

> Sensors & Transducers

> Sensors

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Details for Texas Instruments

DRV421RTJT

Integrated Fluxgate Magnetic Sensor IC for Closed-Loop Applications
Buy Directly from Texas Instruments (3134 in Stock)
$2.5900 per unit
Series Information for DRV421RTJT - Texas Instruments

Features

  • feature
    Diagnostic Features: Overrange and Error Flags
  • feature
    Extended Current Measurement Range u2013 H-Bridge Output Drive: u00b1250 mA typ at 5 V
  • feature
    Fully Specified Over the Extended Industrial
  • feature
    High-Precision Integrated Fluxgate Sensor u2013 Offset and Drift: u00b18 u00b5T max, u00b15 nT/u00b0C typ
  • feature
    Magnetic Core Degaussing Feature
  • feature
    Precision Reference u2013 Accuracy and Drift (max): u00b12%, u00b150 ppm/u00b0C u2013 Pin-Selectable Voltage: 2.5 V or 1.65 V u2013 Selectable Ratiometric Mode: VDD / 2
  • feature
    Precision Shunt Sense Amplifier u2013 Offset and Drift (max): u00b175 u00b5V, u00b12 u00b5V/u00b0C u2013 Gain Error and Drift (max): u00b10.3%, u00b15 ppm/u00b0C
  • feature
    Supply Voltage Range: 3.0 V to 5.5 V

Description

CURRENT SENSOR CLOSED LOOP WQFN-20
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 and doubles the current measurement range, as 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.

Specifications

Quiescent Current:
8.1mA
Bandwidth:
2MHz
Sensor Case Style:
WQFN
No. of Pins:
20Pins
Supply Voltage Min:
3V
Supply Voltage Max:
5.5V
Operating Temperature Min:
-40°C
Operating Temperature Max:
125°C
Product Range:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (27-Jun-2018)

Alternate Descriptions

Avnet America

Integrated Fluxgate Sensor 20-Pin WQFN

Avnet Europe

Integrated Fluxgate Sensor 20-Pin WQFN

Texas Instruments

Integrated Fluxgate Magnetic Sensor IC for Closed-Loop Applications

Texas Instruments product