TLE4922-XAN-F
Data Sheet 1 V 1.0, 2016-11-21
1Product Description
The TLE4922 is an active mono cell Hall sensor suited to detect motion
and position of ferromagnetic and permanent magnet structures. An
additional self-calibration module has been implemented to achieve
optimum accuracy during normal running operation.
1.1 Target Application
The TLE4922 is a speed sensor especially optimized for small engine (2-
and 3 wheeler) applications.
Crankshaft speed and position sensing
Transmission speed on output shaft
Speedometer application
Excellent sensitivity and accuracy combined with its wide operational
temperature range makes the sensor ideally suited for harsh
environments.
1.2 Key Features and Benefits
Twist independent mounting (TIM) “enables one sensor fits all”
Small thin package (PG-SSO-4-1)
Protected against harsh environment due to
Short-circuit current limitation at the output
Over temperature shutdown at the output and
Reverse voltage protection
Supreme performance due to adaptive symmetrical hysteresis /
threshold
Independent of back bias magnet polarity due to ±400mT full
scale range
Enhanced EMC & ESD robustness - ESD : ±3kV HBM
Wide operating temperature range - Tjunction: -40 °C - 155 °C
•True zero speed up to 8kHz signal frequency
Enabling Low Power Application: Idd = 5mA at Vdd = 9V
Large operating voltage range of 4.5V up to 18V
Robustness against wheel run outs enables to sense broad range
of wheels
Figure 1-1 Application circuit TLE4922
Product Type Marking Ordering Code Package
TLE4922-XAN-F 22BAA1 SP001106758 PG-SSO-4-1
V
BA TT
V
DD
GND
Q
V
BA TT
C
LOAD
50 pF
R
LOAD
1.2 k
V
LOAD
V
Q
I
Q
C
Q
4.7 nF
R
SERIES
200
C
VDD
47 nF IC
1
TLE4922
Figure 1-2 Package PG-SSO-4-1
Figure 1-3 Pinning, Sensitive Area
Figure 1-4 Blockdiagram TLE4922
Figure 1-5 Wheel with sensor
Hall
Supply
V
DD
D-Core
(Min/Max,
Offset,
Comparator )
V
Q
GND
Chopped
Hall
Probe
Tracking
ADC
Analog
Supply
Digital
Supply
Open
Drain
TLE4922-XAN-F
Specification
Data Sheet 2 V 1.0, 2016-11-21
2Specification
The listed characteristics are ensured over the operating range and lifetime of the integrated circuit.
2.1 Absolute Maximum Ratings
Note: Stresses above the max. values listed here may cause permanent damage to the device. Exposure to absolute maximum rating conditions for
extended periods may affect device reliability. Maximum ratings are absolute ratings; exceeding only one of these values may cause irreversible
damage to the integrated circuit.
2.2 Operating Range
The following operating conditions must not be exceeded in order to ensure correct operation of the IC. All parameters specified in the
following sections refer to these operating conditions unless otherwise mentioned.
Table 2-1 Absolute Maximum Ratings
Parameter Symbol Values Unit Note or Test Condition
Min. Typ. Max.
Supply voltage VS-18 - - V
--18V
VSAC - - 30 V max. 1 min with RSERIES = 200
Output OFF voltage VQ-1 - - V max. 60 min @ TA = 25°C
-0.3 - 18 V
Output ON voltage VQ--18V
Junction temperature TJ1)
1) In temperature range between operating temperature and absolute maximum temperature no functionality is guaranteed.
195 °C 3h
Overall lifetime TPol2)
2) Maximum exposure time at other junction temperatures shall be calculated based on the values specified using the Arrhenius-model.
-40 - 150 °C 0.2 years
-40 - 50 °C 15 years
ESD compliance ESDHBM -3 - 3 kV HBM according ANSI/ESDA/JEDEC JS-001
Table 2-2 Operating Range
Parameter Symbol Values Unit Note or Test Condition
Min. Typ. Max.
Supply voltage VS4.5 - 16 V
Continuous output ON current IQ--8.8mA
Operating junction temperature TJ1)
1) Typical RthJA is 170K/W. As soon as back bias magnet is attached or customer mold covers the TLE4922 this value will decrease due to larger surface
and mass of the module. Maximum exposure time at other junction temperatures shall be calculated based on the values specified using the
Arrhenius-model.
-40 - 155 °C 2000h
Frequency range of magnetic
input signal
f02)
2) Maximum one additional pulse may occur due to temperature variation during stand still.
-8000Hz
Data Sheet 3 V 1.0, 2016-11-21
TLE4922-XAN-F
Specification
2.3 Electrical Characteristics
2.4 Magnetic Characteristics and Self-Calibration Characteristics
Table 2-3 Electrical Parameters
Parameter Symbol Values Unit Note or Test Condition
Min. Typ. Max.
Supply current IS3.5 5.3 7.0 mA
Output saturation voltage VQSAT - 0.15 0.4 V IQ = 8.8 mA
Output leakage current IQLEAK --10μA
Current limit for short-circuit
protection
IQSHORT1)
1) Parameter is characterized by simulation/verification
37 44 52 mA
Junction temperature for output
protection
TPROT1) 175 195 215 °C Output will shut down (high impedance)
when exceeded
Power on time tON1) -0.70.9ms
Output fall time tf2)
2) Time between 20% and 80% value of VLOAD
2.2 2.8 3.8 μsV
LOAD = 5 V, CLOAD =4.7 nF, RLOAD = 1.2 k
Output rise time tr1)2) 1- 20µsV
LOAD = 5 V, CLOAD =4.7 nF, RLOAD = 1.2 k
Delay time td1)3)
3) Only valid for the falling edge
12.5 18 23.5 μsV
LOAD = 5 V, CLOAD =4.7 nF, RLOAD = 1.2 k,
f=5kHz, see Figure 2-1
Table 2-4 Magnetic Characteristics and Self-Calibration Characteristics: 10 Gauss = 1mT
Parameter Symbol Values Unit Note / Test Condition
Min. Typ. Max.
Linear Region BLR1)
1) is calculated out of measured sensitivity
-400 - 400 mT
Peak to peak magnetic hysteresis BMIN1) 2.0 3.0 5.3 mT Full frequency range
2.0 3.0 3.8 mT Up to 3kHz signal frequency
Temperature compensation of
magnetic hysteresis
TCBmin --650 -ppm Temperature range from 25°C to 150°C
Back Bias Magnet Range BBIAS -400 - 400 mT At Ta=25°C, please notice relation between
back bias magnet and linear region as
described in user manual
Duty Cycle DC2) 40 50 60 %
30 50 70 % Including EMC (magnetic distortion)
Number of falling output edges
required to be calibrated
nCalib 2)3)
2) Parameter is characterized by simulation/verification
3) Maximum one additional pulse may occur due to temperature variation during stand still
--3- At 4
th falling edge full accuracy reached.
Relative phase error in calibrated
mode
ϕ
rel2)4)
4) Performance measured on wheel described in Chapter 2.6 within air gap range 0.5mm to 3.2mm
- ± 0.3 ± 1.5 °crank Forward and backward rotational direction.
Temperature and airgap included.
Output falling edge repeatability
(phase jitter) in calibrated mode
ϕ
jitter2)4) - 0.05 0.2 °crank 99.7 %, 3 pulses out of 1000 above limit.
Equivalent to ± 3sigma of a Gaussian
distribution.
TLE4922-XAN-F
Specification
Data Sheet 4 V 1.0, 2016-11-21
Figure 2-1 Phase error and delay time definition Phase jitter definition
2.5 Electromagnetic Compatibility (EMC)
The TLE4922 is characterized according to the IC level EMC requirements described in the “Generic IC EMC Test
Specification” Version 1.2 from 20071). Additionally, component level EMC characterizations according to ISO 7637-
2:2011, ISO 7637-3:2007 and ISO 16750-2:2010 regarding pulse immunity and CISPR 25 (2009-01) Ed. 3.0 regarding
conducted emissions are performed.
Figure 1-1 on first page outlines all needed external components to operate the DUT under application conditions. They
are treated as inherent part of the DUT during component level EMC characterizations.
Note: Characterisation of Electro Magnetic Compatibility (EMC) are carried out on sample base of one qualification lot. Not all specification
parameters are monitored during EMC exposure. Only key parameters e.g. switching current and duty cycle are monitored.
1) The document is available online at http://www.zvei.org/Verband/Publikationen/Seiten/Generic-IC-EMCTest-Specification-english.aspx
Parameter Symbol Level Class
Testpulse 1 VEMC -100 V C
Testpulse 2a1)
1) ISO 7637-2 (2004) describes internal resistance = 2Ω
100 V A
Testpulse 2b 10 V C
Testpulse 3a -150 V A
Testpulse 3b 100 V A
Testpulse 42)
2) According to 7637-2 for test pulse 4 the test voltage shall be 12 V +/- 0.2 V.
-7 V C
Testpulse 5b3)
3) A central load dump protection of 35V is used.
86.5 V A
Threshold crossing
switching points
Sensor output signal
Delay time t
d
jitter
99.7%
Gearwheel
Tooth
SNS
Threshold
crossing
switching
points
Sensor
output
signal
Magnetic encoder
Magnetic
input signal
Delay time t
d
Notch
NN
Data Sheet 5 V 1.0, 2016-11-21
TLE4922-XAN-F
Specification
2.6 Reference Target Wheel
Figure 2-2 Infineon reference toothed wheel: dimension in mm
Table 2-5 Toothed wheel performance
Parameter Symbol Values Unit Note or Test Condition
Min. Typ. Max.
Operational IC air-gap AG1)2)
1) Parameter is characterized by verification
2) Measured from surface of package to toothed wheel, explained in Figure 2-2.
- - 3.2 mm Field strength of 300mT at 0.7mm above
surface of back-bias magnet (is sensitive
area of TLE4922)
Air-gap variation over one complete
target revolution. Global run-out.
AGGLRO
1)
--0.5
mm Difference between min. and max. air-gap
over one complete target revolution.
Table 2-6 Reference target wheel geometry
Parameter Typ value Unit Remarks
Material ST37 -
Tooth notch ratio 1.00
TLE4922-XAN-F
Specification
Data Sheet 6 V 1.0, 2016-11-21
2.7 Performance Graphs
Following graphs of typical sensor behavior will help to optimize application performance:
Figure 2-3 Typical Performance
4
4,5
5
5,5
6
6,5
-60 -30 0 30 60 90 120 150
180
[mA]
Tj[C]
Supply current @ Vdd=9V
4,5
4,75
5
5,25
5,5
3 5 7 9 11 13 15 17
19
[mA]
Vdd[V]
Supply current
Tj=25°C
Tj=100°C
2
2,5
3
3,5
-50 0 50 100 150
[us]
Tj [°C]
Fall time @ Vout=5V
2
2,5
3
3,5
4 6 8 10 12 14 16 18
[us]
VDD [V]
Fall time @ Vout=5V @ Tj=25°C
2
2,5
3
3,5
4
4,5
-50 0 50 100 150
[mTpp]
Tj[C]
Minimum magnetic field @ f=1kHz
2
2,5
3
3,5
4
4,5
100 1000
[mTpp]
Freq[Hz]
Minimum magnetic field @ Tj=25°C
40
42
44
46
48
50
52
54
56
58
60
10 100 1000 10000
[%]
Freq[Hz]
Duty cycle @ 'B=10mTpp
40
42
44
46
48
50
52
54
56
58
60
-50 0 50 100 150
[%]
Tj[C]
Duty cycle @ 'B=10mTpp
Data Sheet 7 V 1.0, 2016-11-21
TLE4922-XAN-F
Specification
2.8 Application
Basic functionality
The TLE4922 is a mono-cell Hall sensor with analog to digital converter and full digital signal processing for detecting the
magnetic field crossing of the threshold levels. A chopped Hall probe is used to mimic the offset and has advantages for
0-Hz feature. Figure 2-1 shows the basic functionality of TLE4922.
Unique Feature: Polarity of Pre Induction
The back bias magnet can be mounted in both directions to TLE4922 without any difference in performance. One polarity
results in switching the output to “LOW” when passing a tooth and to “HIGH” when passing a notch, whereas the other
polarity of back-bias magnet will switch the output toHIGH” when passing a tooth and to “LOW” when passing a notch.
Figure 2-4 Changing polarity of back bias magnet will change the polarity of TLE4922 output
Start-Up and Running Mode
In Start-Up-Mode the TLE4922 starts with output at “HIGH” and stays there until a first minimum in magnetic field is
detected after start-up time. Calibrated mode is reached after a maximum of four output transitions (The offset
compensation algorithm is considering 4 teeth for averaging). At the 4th falling edge full accuracy on output signal is
reached. These first transitions are determined by the detection of magnetic signal maxima and minima. Output
transitions in running phase are determined by the hidden adaptive hysteresis algorithm.
Application circuit
Figure 1-1 on page one shows an option of an application circuit. The resistor RS is recommended due to reason of EMC.
The resistor RL has to be at a value to match the applied VECU to keep IQ limited to the operating range of maximal 8.8mA.
e.g.: VLOAD = 9V: IQ = 9V/1200 Ω = 7.5mA
Consideration on RthJA
The Rth is modified by attaching a back-bias magnet or doing molding at the customer. There is dependency on the
attached wires: The thicker the attached wire the smaller the value of Rth. It depends on ambient condition: When one
end of the module is cooled in oil or through air-flow the RthJA will decrease.
Global run out
Due to averaging, global run out is depending on the number of teeth. The wheel in Chapter 2.6 allows a global run out
of 0.8mm. Wheels with equal or more than 8 teeth are capable of up to 0.5mm global run out.
S 0015
4952
S 0015
4952
L
V
S
NC GND Q
S
NS
N
S 0015
4952
S 0015
4952
L
V
S
NC GND Q
Sensor
output
Signal:
VQ = „LOW“ in front of tooth of the wheel:
Time / angle in rotational direction forward
Sensor
output
Signal:
Time / angle in rotational direction forward
Air gap from surface of
sensor to surface of
toothed wheel
VQ = „HIGH“ in front of tooth of the wheel:
TLE4922-XAN-F
Package Information
Data Sheet 8 V 1.0, 2016-11-21
3Package Information
Green Product (RoHS compliant)
To meet the world-wide customer requirements for environmentally friendly products and to be compliant with
government regulations the device is available as a green product. Green products are RoHS-Compliant (i.e Pb-free finish
on leads and suitable for Pb-free soldering according to IPC/JEDEC J-STD-020).
3.1 Package Information PG-SSO-4-1
Pure tin covering (green lead plating) is used. The product is RoHS (Restriction of Hazardous Substances) compliant and
marked with letter G in front of the data code marking and may contain a data matrix code on the rear side of the package
(see also information note 136/03). Please refer to your key account team or regional sales if your need further
information.
Figure 3-1 Marking pattern
Figure 3-2 PG-SSO-4-1 package dimensions, dimensions in mm
Data Sheet 9 V 1.0, 2016-11-21
TLE4922-XAN-F
Package Information
Figure 3-3 PG-SSO-4-1 packaging, dimensions in mm
Data Sheet 10 V 1.0 2016-11-21
TLE4922-XAN-F
Revision History
4Revision History
Revision Date Changes
1.0 2016-11-21 Initial release
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Edition 2016-11-21
Published by
Infineon Technologies AG
81726 Munich, Germany
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