TLI493D-W2BW
Low power 3D Hall sensor with I
2
C interface and Wake-Up function
Features
•
•
•
•
•
•
•
•
•
•
•
3D (X, Y, Z) magnetic flux density sensing up to ±160 mT
Programmable sensitivity up to typ. 30.8 LSB
12
/mT
Extremely small form factor: typ. 1.13 mm * 0.93 mm * 0.59 mm
Power down mode with 7 nA (typ.) power consumption
12-bit data resolution for each measurement direction plus 10-bit
temperature sensor
Variable update frequencies and power modes (configurable during
operation)
Temperature range
T
j
= -40°C…125°C, supply voltage range =
2.8 V…3.5 V
Triggering by external microcontroller possible via I
2
C protocol
X-Y angular measurement mode
Interrupt signal to indicate a valid measurement to the
microcontroller
Pb-free (RoHS compliant) and halogen free package
SG-WFWLB-5-2
Potential applications
The TLI493D-W2BW is designed for a wide range of magnetic sensing, including the following:
• Multi function knobs
• Joysticks and gimbals
• White good applications (washing, dryer machines, ...)
• Robotics position sensing
• Mobile camera lens position sensing for focus and zoom
• Angle measurement in end of shaft and out of shaft configurations
Benefits
•
•
•
•
•
•
Component reduction due to 3D magnetic measurement principle
Small sensor form factor allows for very compact system designs
Wide application range addressable due to high flexibility
Platform adaptability due to device configurability
Very low system power consumption due to Wake-Up mode resulting in extended battery runtime
Disturbance of smaller stray fields are neglectable compared to the high magnetic flux measurement range
Product validation
Qualified for industrial applications according to JEDEC JESD47.
Datasheet
www.infineon.com
Please read the Important Notice and Warnings at the end of this document
V1.00
2020-07-21
TLI493D-W2BW
Low power 3D Hall sensor with I
2
C interface and Wake-Up function
Ordering information
Ordering information
Product type
TLI493D-W2BW A0
TLI493D-W2BW A1
TLI493D-W2BW A2
TLI493D-W2BW A3
Marking
3DW0
3DW1
3DW2
3DW3
Packing unit
4k on reel
15k on reel
4k on reel
15k on reel
4k on reel
15k on reel
4k on reel
15k on reel
Ordering code
SP005414809
SP005409964
SP005414807
SP005409966
SP005414805
SP005409968
SP005414803
SP005409970
SG-WFWLB-5-2
88
H
/ 89
H
SG-WFWLB-5-2
F0
H
/ F1
H
SG-WFWLB-5-2
44
H
/ 45
H
Package
SG-WFWLB-5-2
Default address
write/read
6A
H
/ 6B
H
Datasheet
2
V1.00
2020-07-21
TLI493D-W2BW
Table of contents
Low power 3D Hall sensor with I
2
C interface and Wake-Up function
Table of contents
Features
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Potential applications
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Benefits
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Product validation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Ordering information
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Table of contents
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1
1.1
1.1.1
1.1.2
1.1.3
1.2
1.3
1.4
1.5
2
2.1
2.2
2.3
2.4
2.5
2.6
2.7
3
3.1
3.2
Functional description
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Power mode control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Sensing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Wake-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Definition of magnetic field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Sensitive area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Specification
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Operating range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Magnetic characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Temperature measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Overview of modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Interface and timing description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Package information
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Package parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Package outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Revision history
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Disclaimer
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Datasheet
3
V1.00
2020-07-21
TLI493D-W2BW
Low power 3D Hall sensor with I
2
C interface and Wake-Up function
Functional description
1
Functional description
This three dimensional Hall effect sensor can be configured by the microcontroller. The measurement data is
provided in digital format to the microcontroller. The microcontroller is the master and the sensor is the slave.
The sensor also provides the functionality to Wake-Up a sleeping system.
1.1
General
Description of the block diagram and its functions.
Power Mode Control
GND
F-OSC
LP-OSC
VDD
Bias
Vertical
Hall plates
X-Direction
Wake Up
Lateral
Hall plates
Z-Direction
SDA
Comparator
MUX
Vertical
Hall plates
Y-Direction
ADC
Digital tracking,
demodulation &
I²C interface
SCL
/INT
Temperature
Figure 1
Block diagram
The IC consists of three main functional units containing the following building blocks:
• The power mode control system, containing a low-power oscillator, basic biasing, accurate restart,
undervoltage detection and a fast oscillator.
• The sensing unit, which contains the HALL biasing, HALL probes with multiplexers and successive tracking
ADC, as well as a temperature sensor is implemented.
• The I
2
C interface, containing the register files and I/O pads
1.1.1
Power mode control
The power mode control provides the power distribution in the IC, a power-on reset function and a specialized
low-power oscillator as the clock source. It also manages the start-up behavior.
• On start-up, this unit:
- activates the biasing, provides an accurate reset detector and fast oscillator
- sensor enters low power mode and can be configured via I
2
C interface
•
After re-configuration, a measurement cycle is performed, which consists of the following steps:
- activating internal biasing, checking for the restart condition and providing the fast oscillator
- HALL biasing
Datasheet
4
V1.00
2020-07-21
TLI493D-W2BW
Low power 3D Hall sensor with I
2
C interface and Wake-Up function
Functional description
measuring the three HALL probe channels sequentially (including the temperature). This is enabled by
default
- reentering configured mode
In any case functions are only executed if the supply voltage is high enough, otherwise the restart circuit will
halt the state machine until the required level is reached and restart afterwards. The functions are also restarted
if a restart event occurs in between (see parameter
ADC restart level
).
-
1.1.2
Sensing
Measures the magnetic field in X, Y and Z direction. Each X-, Y- and Z-Hall probe is connected sequentially to a
multiplexer, which is then connected to an analog to digital converter (ADC). Optional, the temperature (default
= activated) can be determined as well after the three Hall channels.
1.1.3
Wake-Up
For each of the three magnetic channels (X/Y/Z), the Wake-Up function has an upper and lower comparison
threshold. Each component of the applied field is compared to the lower and upper threshold. If one of the
results is above or below these thresholds, an interrupt pulse /INT is generated. This is called a Wake-Up
function. The sensor signals a certain field strength change to the microcontroller. As long as all components of
the field stay within the envelope, no interrupt signal will be provided. Note however that the /INT can also be
inhibited during I
2
C activities, by activated collision avoidance. A Wake-Up interrupt /INT is the logical OR
among all Wake-Up interrupt envelopes of the three channels.
Datasheet
5
V1.00
2020-07-21
传感器
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