TLI4906LHALA1 - INFINEON TECHNOLOGIES AG

May 2009

Sense and Control

Datasheet

Rev. 1.0

TLI4906

High Precision Hall Effect Switches for Industrial and Consumer

Applications

TLI4906K, TLI4906L

Edition 2009-05-04

Published by

Infineon Technologies AG

81726 Munich, Germany

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).

Warnings

Due to technical requirements, components may contain dangerous substances. For information on the types in

question, please contact the nearest Infineon Technologies Office.

Infineon Technologies components may be used in life-support devices or systems only with the express written

approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure

of that life-support device or system or to affect the safety or effectiveness of that device or system. Life support

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.

TLI4906

Datasheet 3 Rev. 1.0, 2009-05-04

High Precision Hall Effect Switches for Industrial and Consumer Applications

Revision History: 2009-05-04, Rev. 1.0

Previous Revisions: none

Page Subjects (major changes since last revision)

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TLI4906

Table of Contents

Datasheet 4 Rev. 1.0, 2009-05-04

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 TLI4906K Package Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4.2 TLI4906L Package Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Table of Contents

TLI4906

List of Figures

Datasheet 5 Rev. 1.0, 2009-05-04

Figure 1 Pin Configuration and sensitive area (Top view, figure not to scale) . . . . . . . . . . . . . . . . . . . . . . . . 8

Figure 2 TLI4906x 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 TLI4906K and distance of the chip to the upper side . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 8 PG-SC59-3-4 Package Outline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 9 Footprint PG-SC59-3-4 (SOT23 compatible) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 10 Marking of the TLI4906L and distance of the chip to the upper side . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 11 PG-SSO-3-2 Package Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

List of Figures

TLI4906

List of Tables

Datasheet 6 Rev. 1.0, 2009-05-04

Table 1 PIN Definitions for the PG-SC59-3-4 package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Table 2 PIN Definitions for the PG-SSO-3-2 package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Table 3 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Table 4 Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Table 5 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Table 6 Magnetic Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

List of Tables

Product Name Product Type Ordering Code Package

Hall Effect Switch TLI4906K SP000604306 PG-SC59-3-4

Hall Effect Switch TLI4906L SP000604320 PG-SSO-3-2

High Precision Hall Effect Switch TLI4906

Datasheet 7 Rev. 1.0, 2009-05-04

1 Product Description

1.1 Overview

The TLI4906x is a high precision Hall Effect Switch with highly accurate

switching thresholds for ambient operating temperatures up to 125°C.

The TLI4906K is available in a PG-SC59-3-4 package, the TLI4906L in a

PG-SSO-3-2 package.

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 TLI4906x 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.

TLI4906

Functional Description

Datasheet 8 Rev. 1.0, 2009-05-04

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 TLI4906xsuitable for a wide range of applications. A magnetic south pole with a field strength above Bop turns

the output on. A magnetic north pole exceeding Brp turns it off.

2.2 Pin Configuration

Figure 1 Pin Configuration and sensitive area (Top view, figure not to scale)

Center of

Sensitive Area

± 0.15

1.5

± 0.15

0.8

321

PG-SSO-3-2SC59

± 0.1

1.35

± 0.1

2.08

TLI4906

Functional Description

Datasheet 9 Rev. 1.0, 2009-05-04

2.3 Pin Description

2.4 Block Diagram

Figure 2 TLI4906x Block Diagram

Table 1 PIN Definitions for the PG-SC59-3-4 package

PIN No. Name Function

sSupply Voltage

2 Q Output

3 GND Ground

Table 2 PIN Definitions for the PG-SSO-3-2 package

PIN No. Name Function

sSupply Voltage

2 GND Ground

3 Q Output

Ref

Chopped

Hall Probe

GND

Amplifier Low

Pass

Filter

Comparator

with

Hysteresis

Voltage Regulator

reverse polarity protected

Oscillator

and

Sequencer

Bias and

Compensation

Circuits

TLI4906

Functional Description

Datasheet 10 Rev. 1.0, 2009-05-04

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.

Branded Side

SBranded Side

Bop

Brp

TLI4906

Specification

Datasheet 11 Rev. 1.0, 2009-05-04

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 3 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) According to EIA/JESD22-A114-E

––4 kV

GND

TLI4906X

200Ω

1.2kΩ

GND

4.7nF 4. 7nF

TLI4906

Specification

Datasheet 12 Rev. 1.0, 2009-05-04

3.3 Operating Range

The following operating conditions must not be exceeded in order to ensure correct operation of the TLI4906x. 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 4 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 – 125 °C

Table 5 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) 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 – 100 – K/W TLI4906K

– 190 K/W TLI4906L

TLI4906

Specification

Datasheet 13 Rev. 1.0, 2009-05-04

Figure 6 Timing Diagram

Table 6 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

∆Β/∆t > 12mT/ms

Applied

Magnetic

Field

90%

10%

TLI4906

Package Information

Datasheet 14 Rev. 1.0, 2009-05-04

4 Package Information

4.1 TLI4906K Package Outline

Figure 7 Marking of the TLI4906K and distance of the chip to the upper side

Figure 8 PG-SC59-3-4 Package Outline

AEA03244

Branded Side

d: Distance chip to upper side of IC :

d = 0 .56 ±0.1 mm

Year (y) = 0...9

Month ( m) = 1...9 ,

O - October

N - November

D - December

y m

I06

3x0.4

+0.05

-0.1 M

0.1

0.95

(0.55)

±0.1

+0.2

2.8

-0.1

0.15 MAX.

1.1

±0.1

0.2

+0.1

-0.05

0.15

0˚...8˚ MAX.

GPS09473

0.45

±0.15

+0.15

-0.3

1.6

0.1

TLI4906

Package Information

Datasheet 15 Rev. 1.0, 2009-05-04

Figure 9 Footprint PG-SC59-3-4 (SOT23 compatible)

4.2 TLI4906L Package Outline

Figure 10 Marking of the TLI4906L and distance of the chip to the upper side

Reflow Soldering Wave Soldering

0.8

1.2

0.9 1.3 0.9

0.8

1.2

1. 6 1.4 min1.4 min

Year (y) = 0...9

Calendar Week (ww) = 01...52

yww

I06

TLI4906

Package Information

Datasheet 16 Rev. 1.0, 2009-05-04

Figure 11 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

±1

±0.5

-0.5

+0.75

±0.3

GPO05358

-0.15

±0.1

Tape

Adhesive

Tape

0.25

0.39

±0.5

23.8

±0.5

38 MAX.

-1

132

1.27

±0.25

1.27

±0.25

0.6 MAX.

0.4

±0.05

1 MAX.

0.15 MAX.

1.9 MAX.

4.06

±0.08

4.16

±0.05

±0.08

3.29

±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)

1.52

±0.05

Published by Infineon Technologies AG