DRV5053_15 Datasheet, PDF (8/24 Pages) Texas Instruments – DRV5053 Analog-Bipolar Hall Effect Sensor

DRV5053
SLIS153B – MAY 2014 – REVISED SEPTEMBER 2014
8 Detailed Description
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8.1 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.
8.2 Functional Block Diagram
2.5 – 38 V
Regulated Supply
Bias
Temperature
Compensation
VCC
C_VCC
Hall Element
+
OUT
Output
Driver
-
C_OUT
(Optional)
R_OUT
(Equivalent)
GND
Optional RC Filtering
8
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