Sense and Control
Datasheet
Rev. 1.1, 2010-08-02
TLV4906L
Value Optimized Hall Effect Switch for Industrial and Consumer
Applications
Edition 2010-08-02
Published by
Infineon Technologies AG
81726 Munich, Germany
© 2010 Infineon Technologies AG
All Rights Reserved.
Legal Disclaimer
The information given in this document shall in no event be regarded as a guarantee of conditions or
characteristics. With respect to any examples or hints given herein, any typical values stated herein and/or any
information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties
and liabilities of any kind, including without limitation, warranties of non-infringement of intellectual property rights
of any third party.
Information
For further information on technology, delivery terms and conditions and prices, please contact the nearest
Infineon Technologies Office (www.infineon.com).
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devices or systems are intended to be implanted in the human body or to support and/or maintain and sustain
and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may
be endangered.
TLV4906L
Datasheet 3 Rev. 1.1, 2010-08-02
Value Optimized Hall Effect Switch for Industrial and Consumer Applications
Revision History: 2010-08-02, Rev. 1.1
Previous Revisions: 1.0
Page Subjects (major changes since last revision)
all TLV4906K removed
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TLV4906L
Table of Contents
Datasheet 4 Rev. 1.1, 2010-08-02
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
List of Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
List of Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.3 Target Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3 Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.5 Operating Modes and States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.6 Functional Block Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3 Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1 Application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.2 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.3 Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.4 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4 Package Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.1 TLV4906L Package Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table of Contents
TLV4906L
List of Figures
Datasheet 5 Rev. 1.1, 2010-08-02
Figure 1 Pin Configuration and sensitive area (Top view, figure not to scale) . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 2 TLV4906L Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 3 Definition of the Magnetic Field direction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 4 Output Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 5 Application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 6 Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 7 Marking of the TLV4906L and distance of the chip to the upper side. . . . . . . . . . . . . . . . . . . . . . . 14
Figure 8 PG-SSO-3-2 Package Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
List of Figures
TLV4906L
List of Tables
Datasheet 6 Rev. 1.1, 2010-08-02
Table 1 PIN Definitions for the PG-SSO-3-2 package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 2 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 3 Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 4 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 5 Magnetic Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
List of Tables
Product Name Product Type Order Code Package
TLV4906L Hall Effect Switch SP000604324 PG-SSO-3-2
Hall Effect Switch TLV4906L
Datasheet 7 Rev. 1.1, 2010-08-02
1 Product Description
1.1 Overview
The TLV4906L is a high precision Hall Effect Switch with highly accurate
switching thresholds for ambient operating temperatures up to 85°C.
1.2 Features
• 2.7 V to 18 V supply voltage operation.
• Operation from unregulated power supply.
• High sensitivity and high stability of the magnetic switching points.
• High resistance to mechanical stress by active error compensation.
• Reverse battery protection (-18 V).
• Superior temperature stability.
• Low jitter (typically 1 µs).
• High ESD performance (± 4 kV HBM).
• Digital output signal (open-drain).
• Not suitable for automotive applications
1.3 Target Applications
The TLV4906L is ideally suited for all industrial and consumer applications that require a high precision switching
thresholds for position sensing. It can be used for example for: security systems, alignment control, push buttons,
keyboards, key switches, machine tools, etc.
TLV4906L
Functional Description
Datasheet 8 Rev. 1.1, 2010-08-02
2 Functional Description
2.1 General
Precise magnetic switching thresholds and high temperature stability are achieved by active compensation circuits
and chopper techniques on chip. Offset voltages generated by temperature-induced stress or overmolding are
canceled so that high accuracy is achieved. The IC has an open collector output stage with 20 mA current sink
capability. A wide operating voltage range from 2.7 V to 18 V with reverse polarity protection down to -18 V makes
the TLV4906L suitable for a wide range of applications. A magnetic south pole with a field strength above Bop turns
the output transistor on (output voltage low) and for a magnetic field below Brp the output transistor is switched off
(output voltage high).
2.2 Pin Configuration
Figure 1 Pin Configuration and sensitive area (Top view, figure not to scale)
Center of
Sensitive Area
321
PG-SSO-3-2
± 0.1
1.35
± 0.1
2.08
TLV4906L
Functional Description
Datasheet 9 Rev. 1.1, 2010-08-02
2.3 Pin Description
2.4 Block Diagram
Figure 2 TLV4906L Block Diagram
Table 1 PIN Definitions for the PG-SSO-3-2 package
PIN No. Name Function
1V
sSupply Voltage
2 GND Ground
3 Q Output
Ref
Chopped
Hall Probe
VS
Q
GND
Amplifier Low
Pass
Filter
Comparator
with
Hysteresis
Voltage Regulator
reverse polarity protected
Oscillator
and
Sequencer
Bias and
Compensation
Circuits
TLV4906L
Functional Description
Datasheet 10 Rev. 1.1, 2010-08-02
2.5 Operating Modes and States
Field Direction and Definition
Positive magnetic fields correspond to the south pole of the magnet targeting the branded side of the package.
Figure 3 Definition of the Magnetic Field direction
Figure 4 Output Signal
2.6 Functional Block Description
The chopped Hall Effect Switch comprises a Hall probe, a bias generator, compensation circuits, an oscillator and
an output transistor. The bias generator provides currents to the Hall probe and the active circuits. Compensation
circuits stabilize response of the IC over temperature and reduce the impact of process variations.
The Active Error Compensation rejects offsets in the signal path and reduces the impact of mechanical stress in
the package caused by molding, soldering and thermal effects.
The chopper technique together with the threshold generator and the comparator ensure high accurate magnetic
switching points.
N
SBranded Side
VQ
Bop
Brp
0
B
TLV4906L
Specification
Datasheet 11 Rev. 1.1, 2010-08-02
3 Specification
3.1 Application circuit
Figure 5 Application circuit
It is recommended to use a resistor of 200 Ω in the supply line for current limitation in the case of an overvoltage
pulse. Two capacitors of 4.7 nF enhance the EMC performance. The pull-up of 1.2 kΩ limits the current through
the output transistor.
3.2 Absolute Maximum Ratings
Stress above the maximum values listed in this section may cause permanent damage to the device. Exposure to
absolute maximum rating conditions for extended periods may affect the reliability of the device. Exceeding only
one of these values may cause irreversible damage to the device.
Table 2 Absolute Maximum Ratings
Parameter Symbol Values Unit Note / Test Condition
Min. Typ. Max.
Maximum Ambient Temperature TA- 40 – 125 °C
Maximum Junction Temperature TJ- 40 – 150 °C
Supply Voltage VS- 18 – 18 V
Supply current through protection
device
IS-50 – 50 mA
Output Voltage VOUT - 0.7 – 18 V
Storage Temperature TS- 40 – 150 °C
Magnetic flux density B– – unlimited mT
ESD Robustness HBM:
1.5 kΩ, 100 pF
VESD,HBM
1)
1) According to EIA/JESD22-A114-E
––4 kV
V
S
Q
GND
TLV4906X
200Ω
1.2kΩ
V
S
GND
4.7nF 4. 7nF
Q
TLV4906L
Specification
Datasheet 12 Rev. 1.1, 2010-08-02
3.3 Operating Range
The following operating conditions must not be exceeded in order to ensure correct operation of the TLV4906L.
All parameters specified in the following sections refer to these operating conditions unless otherwise mentioned.
3.4 Electrical Characteristics
Product characteristics include the spread of values guaranteed within the specified voltage and ambient
temperature range. typical characteristics are the median of the production (at Vs=12V and TA=25°C).
Table 3 Operating Range
Parameter Symbol Values Unit Note / Test Condition
Min. Typ. Max.
Supply Voltage VS2.7 – 18 V
Output Voltage VQ-0.7 – 18 V
Output Current IQ0–20 mA
Maximum Ambient Temperature TA-40 – 85 °C
Table 4 Electrical Characteristics
Parameter Symbol Values Unit Note / Test Condition
Min. Typ. Max.
Supply Current IS246 mAV
S=2.7 V...18 V
Reverse Current ISR 00.21 mAV
S=-18 V
Output Saturation Voltage VQSAT –0.30.6 V I
Q=20 mA
Output leakage current IQLEAK –0.0510 µA V
Q=18 V
Output fall time1)
1) See Figure 6
tf–0.021 µs R
L=1.2k Ω, CL=50 pF
Output rise time1) tr–0.41 µs
Chopper frequency fOSC –320– kHz
Switching frequency fSW 0–15
2)
2) To operate the sensor at maximum switching frequency, the value of the magnetic signal amplitude must be 1.4 times
higher than the static fields. This is due to the -3 dB corner frequency of the low pass filter in the signal path.
kHz
Delay time3)
3) Systematic delay between magnetic threshold reached and output.
td–13– µs
Output jitter4)
4) Jitter is the unpredictable deviation of the output switching delay.
tQJ –1– µs
RMS Typical value for a 1 kHz
square wave signal
Power-on Time5)
5) Time from applying VS. > 2.7 V to the sensor until the output state is valid.
tPON –13– µs V
S > 2.7 V
Thermal Resistance junction to
ambient6)
6) Relationship between junction and ambient temperature: TJ=Tamb + Rthja . (VS . IS + VQS . IQ).
Rthja – – 190 K/W TLV4906L
TLV4906L
Specification
Datasheet 13 Rev. 1.1, 2010-08-02
Figure 6Timing Diagram
Table 5 Magnetic Characteristics 1)
1) Over all operating conditions.
Parameter Symbol Values Unit Note / Test Condition
Min. Typ. Max.
Operate point BOP 6.2 10.0 13.9 mT
Release point BRP 4.7 8.5 12.3 mT
Hysteresis BHYS 0.7 1.5 3.0 mT 2)
2) At 25°C.
Temperature compensation of
magnetic thresholds
TC –-350– ppm/°C
Repeatability of magnetic
thresholds3)
3) BREP is equivalent to the noise constant.
BREP –20– µT
RMS typical value for
ΔΒ/Δt > 12mT/ms
Applied
Magnetic
Field
90%
10%
V
Q
t
f
t
d
t
r
t
d
B
OP
B
RP
TLV4906L
Package Information
Datasheet 14 Rev. 1.1, 2010-08-02
4 Package Information
4.1 TLV4906L Package Outline
Figure 7 Marking of the TLV4906L and distance of the chip to the upper side
Year (y) = 0...9
Calendar Week (ww) = 01 ...52
yww
VB1
S
TLV4906L
Package Information
Datasheet 15 Rev. 1.1, 2010-08-02
Figure 8 PG-SSO-3-2 Package Outline
Total tolerance at 10 pitches ±1
1
) No solder function area
±0.3
±0.4
6.35 12.7
12.7
±1
±0.5
-0.5
+0.75
4
±0.3
9
GPO0535
8
-0.15
±0.1
Tape
Adhesiv
e
Tape
0.25
0.39
±0.5
A
18
6
23.8
±0.5
38 MAX.
-1
1
132
1.27
±0.25
1.27
±0.25
0.6 MAX.
0.4
±0.05
1)
1 MAX.
0.15 MAX.
1.9 MAX.
4.06
±0.08
4.16
±0.05
±0.08
3.29
3
±0.06
0.2
(0.25)
x 45˚0.8
±0.1
7˚
x 45˚
±0.1
0.35
0.2
+0.1
7˚
(0.79)
A
2
1.52
±0.05
