Automotive, Fluxgate Magnetic Sensor Signal Conditioning IC for Closed-Loop Applications - DRV401-Q1

DRV401-Q1 (ACTIVE)

Automotive, Fluxgate Magnetic Sensor Signal Conditioning IC for Closed-Loop Applications

 

Description

The DRV401-Q1 device is fully qualified for automotive applications and is suitable for motor control drive and battery monitoring systems.

When used with a magnetic sensor, the DRV401-Q1 monitors ac and dc currents to high accuracy.

Provided functions include: probe excitation, signal conditioning of the probe signal, signal loop amplifier, an H-bridge driver for the compensation coil, and an analog signal output stage that provides an output voltage proportional to the primary current. It offers overload and fault detection, as well as transient noise suppression.

The DRV401-Q1 device directly drives the compensation coil or connects to external power drivers. Therefore, the DRV401-Q1 combines with sensors to measure small to large currents.

To maintain the highest accuracy, the DRV401-Q1 demagnetizes (degausses) the sensor at power-up and on demand.

Features

  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 1C
    • Device CDM ESD Classification Level C6
  • Single-Supply: 5-V
  • Power Output: H-Bridge
  • Designed for Driving Inductive Loads
  • Excellent DC Precision
  • Wide System Bandwidth
  • High-Resolution, Low-Temperature Drift
  • Built-In Degauss System
  • Extensive Fault Detection
  • External High-Power Driver Option
  • Compact Footprint

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Parametrics Compare all products in Fluxgate Sensors

 
Architecture
Current Sensor Type
Vs (Min) (V)
Vs (Max) (V)
System Bandwidth (KHz)
Offset Voltage (+/-) (uV)
Offset Drift (Max) (uV/C)
Gain Error (+/-) (Max) (%)
Gain Drift (Typ) (ppm/C)
Reference Voltage (V)
Reference Accuracy (+/-) (Max) (%)
Reference Drift (Max) ((±) ppm/°C)
Rating
Operating Temperature Range (C)
Package Group
Pin/Package
Package Size: mm2:W x L (PKG)
DRV401-Q1 DRV401 DRV401-EP DRV411 DRV421 DRV425
Closed Loop    Closed Loop    Closed Loop    Closed Loop    Closed Loop    Open Loop   
Fluxgate External    Fluxgate External    Fluxgate External    Hall-effect External    Fluxgate Integrated    Fluxgate Integrated   
4.5    4.5    4.5    2.7    3    3   
5.5    5.5    5.5    5.5    5.5    5.5   
2000    2000    2000    2000    2000    47   
100    100    100    100    75    75   
1    1      2    2    2   
0.3    0.3    0.3    0.3    0.3    0.3   
0.1    0.1    0.1    1    1    1   
2.5    2.5    2.5    1.65 / 2.5 / Ratiometric    1.65 / 2.5 / Ratiometric    1.65 / 2.5 / Ratiometric   
0.2    0.2    0.2    0.2    2    2   
50    50      50    100    50   
Automotive    Catalog    HiRel Enhanced Product    Catalog    Catalog    Catalog   
-40 to 125    -40 to 125    -55 to 125    -40 to 125    -40 to 125    -40 to 125   
VQFN    SO PowerPAD
VQFN   
SO PowerPAD    HTSSOP
QFN   
QFN    QFN   
20VQFN    20SO PowerPAD
20VQFN   
20SO PowerPAD    20HTSSOP
20QFN   
20QFN    20QFN   
20VQFN: 25 mm2: 5 x 5(VQFN)    20SO PowerPAD: 133 mm2: 10.405 x 12.825(SO PowerPAD)
20VQFN: 25 mm2: 5 x 5(VQFN)   
20SO PowerPAD: 133 mm2: 10.405 x 12.825(SO PowerPAD)    20HTSSOP: 42 mm2: 6.4 x 6.5(HTSSOP)
20QFN: 16 mm2: 4 x 4(QFN)   
20QFN: 16 mm2: 4 x 4(QFN)    20QFN: 16 mm2: 4 x 4(QFN)   

Other qualified versions of DRV401-Q1

Version Part Number Definition
Enhanced Product DRV401-EP Supports Defense, Aerospace and Medical Applications
Catalog DRV401 TI's standard catalog product