DRV5053 Datasheet, PDF (8/25 Pages) Texas Instruments – DRV5053 Analog-Bipolar Hall Effect Sensor

DRV5053
SLIS153C – MAY 2014 – REVISED DECEMBER 2015
7 Detailed Description
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7.1 Overview
The DRV5053 device is a chopper-stabilized Hall sensor with an analog output for magnetic sensing
applications. The DRV5053 device can be powered with a supply voltage between 2.5 and 38 V, and will survive
–22 V reverse battery conditions continuously. Note that the DRV5053 device will not be operating when
approximately –22 to 2.4 V is applied to V_CC (with respect to GND). In addition, the device can withstand supply
voltages up to 40 V for transient durations.
The output voltage is dependent on the magnetic field perpendicular to the package. The absence of a magnetic
field will result in OUT = 1 V. A magnetic field will cause the output voltage to change linearly with the magnetic
field.
The field polarity is defined as follows: a south pole near the marked side of the package is a positive magnetic
field. A north pole near the marked side of the package is a negative magnetic field.
For devices with a negative sensitivity (that is, DRV5053RA: –40 mV/mT), a south pole will cause the output
voltage to drop below 1 V, and a north pole will cause the output to rise above 1 V.
For devices with a positive sensitivity (that is, DRV5053EA: +40 mV/mT), a south pole will cause the output
voltage to rise above 1 V, and a north pole will cause the output to drop below 1 V.
7.2 Functional Block Diagram
2.5 ± 38 V
C_VCC
Regulated Supply
Bias
Temperature
Compensation
VCC
Hall Element
+
Output
OUT
-
Driver
C_OUT
R_OUT
GND
Optional RC Filtering
Equivalent
impedance to
ground
8
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