DRV5032_17 Datasheet, PDF (8/33 Pages) Texas Instruments – Ultra-Low-Power Digital-Switch Hall Effect Sensor

DRV5032
SLVSDC7A – APRIL 2017 – REVISED MAY 2017
8 Detailed Description
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8.1 Overview
The DRV5032 device is a magnetic sensor with a digital output that indicates when the magnetic flux density
threshold has been crossed. The device integrates a Hall effect element, analog signal conditioning, and a low-
frequency oscillator that enables ultra-low average power consumption. By operating from a 1.65-V to 5.5-V
supply, the device periodically measures magnetic flux density, updates the output, and enters a low-power sleep
state.
8.2 Functional Block Diagram
0.1 F
(min)
V_CC
Voltage
Regulator
Ultra-low-power
Oscillator
FA/FB/FD versions
VCC
OUT
REF
Element Bias
Offset
Cancellation
Temperature
Compensation
Amp
Output
Control
FD version
VCC
OUT2
GND
Copyright © 201 7, Texas Instrumen ts Incorpor ate d
8.3 Feature Description
8.3.1 Magnetic Flux Direction
The DRV5032 device is sensitive to the magnetic field component that is perpendicular to the top of the package
(as shown in Figure 7).
B
SOT-23
B
X2SON
PCB
Figure 7. Direction of Sensitivity
8
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