TLE49461LHALA1 - INFINEON TECHNOLOGIES AG

Data Sheet, Rev 1.2, December 2008

TLE4946-1L

High Precision Bipolar Hall-Effect Latch

Sensors

Edition 2008-12

Published by

Infineon Technologies AG

81726 München, Germany

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of any third party.

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TLE4946-1L

Revision History: 2008-12 Rev 1.2

Previous Version: 1.1

Page Subjects (major changes since last revision)

TLE4946H version removed (transfered to own datasheet)

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TLE4946-1L

Data Sheet 1 Rev 1.2, 2008-12

1Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.2 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.3 Pin Configuration (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.1 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.2 Circuit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3 Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

4 Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

5 Electrical and Magnetic Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

6 Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

7 Package Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

7.1 Package Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

7.2 Distance between Chip and Package Surface . . . . . . . . . . . . . . . . . . . . . 11

7.3 Package Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Type Package

TLE4946-1L PG-SSO-3-2

High Precision Bipolar Hall-Effect Latch

TLE4946-1L

Data Sheet 2 Rev 1.2, 2008-12

1Overview

1.1 Features

•2.7 V to 24 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

• Peak temperatures up to 195°C without damage

• Low jitter (typ. 1 µs)

• High ESD performance (± 6 kV HBM)

• Digital output signal

• Leaded package PG-SSO-3-2

1.2 Functional Description

The TLE4946-1L is an integrated circuit Hall-effect sensor designed specifically for

highly accurate applications.

Precise magnetic switching points and high temperature stability are achieved by active

compensation circuits and chopper techniques on chip.

TLE4946-1L

Overview

Data Sheet 3 Rev 1.2, 2008-12

1.3 Pin Configuration (top view)

Center of

Sensitive Area

321

PG-SSO-3-2

± 0.1

1.35

± 0.1

2.08

Figure 1 Pin Definition and Center of Sensitive Area

Table 1 Pin Definitions and Functions PG-SSO-3-2

Pin No. Symbol Function

1VSSupply voltage

2 GND Ground

3 Q Output

TLE4946-1L

General

Data Sheet 4 Rev 1.2, 2008-12

2 General

2.1 Block Diagram

Figure 2 Block Diagram

2.2 Circuit Description

The chopped Hall IC Switch comprises a Hall probe, bias generator, compensation

circuits, oscillator, and output transistor.

The bias generator provides currents for the Hall probe and the active circuits.

Compensation circuits stabilize the temperature behavior and reduce technology

variations.

The Active Error Compensation rejects offsets in signal stages and the influence of

mechanical stress to the Hall probe caused by molding and soldering processes and

other thermal stresses in the package.

This chopper technique together with the threshold generator and the comparator

ensure high accurate magnetic switching points.

Ref

Chopped

Hall Probe

GND

Amplifier Low

Pass

Filter

Comparator

with

Hysteresis

Voltage Regulator

reverse polarity protected

Oscillator

and

Sequencer

Bias and

Compensation

Circuits

TLE4946-1L

Maximum Ratings

Data Sheet 5 Rev 1.2, 2008-12

Table 2 Absolute Maximum Ratings

Tj = – 40°C to 150°C

Parameter Symbol Limit Values Unit Conditions

min. max.

Supply voltage VS– 18

– 18

for 1 h, Rs ≥ 200 Ω

for 5 min, Rs ≥ 200 Ω

Supply current

through

protection device

IS– 50 + 50 mA

Output voltage VQ– 0.7

– 0.7

for 5 min @ 1.2 kΩ pull up

Continuous

output current

IQ– 50 + 50 mA

Junction

temperature

Tj–

–

155

165

175

195

°C for 2000 h (not additive)

for 1000 h (not additive)

for 168 h (not additive)

for 3 x 1 h (additive)

Storage

temperature

TS– 40 150 °C

Magnetic flux

density

B – unlimited mT

Maximum Ratings

Note: Stresses above those listed here may cause permanent damage to the device. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

Table 3 ESD Protection 1)

1) Human Body Model (HBM) tests according to: EOS/ESD Association Standard S5.1-1993 and

Mil. Std. 883D method 3015.7

Parameter Symbol Limit Values Unit Notes

min. max.

ESD voltage VESD – ± 6 kV HBM, R = 1.5 kΩ,

C = 100 pF

TA = 25°C

TLE4946-1L

Operating Range

Data Sheet 6 Rev 1.2, 2008-12

4 Operating Range

Table 4 Operating Range

Parameter Symbol Limit Values Unit Conditions

min. typ. max.

Supply voltage VS2.7 –18 V

Output voltage VQ– 0.7 –18 V

Junction

temperature

Tj– 40 –150 °C

Output current IQ0 – 20 mA

TLE4946-1L

Electrical and Magnetic Parameters

Data Sheet 7 Rev 1.2, 2008-12

5 Electrical and Magnetic Parameters

Table 5 Electrical Characteristics 1).

1) over operating range, unless otherwise specified. Typical values correspond to VS =12 V and TA = 25°C

Parameter Symbol Limit Values Unit Conditions

min. typ. max.

Supply current IS24 6mA VS = 2.7 V ... 18 V

Reverse current ISR 00.2 1mA VS = – 18 V

Output saturation

voltage

VQSAT –0.3 0.6 VIQ = 20 mA

Output leakage

current

IQLEAK –0.05 10 µA for VQ = 18 V

Output fall time tf–0.02 1µs RL = 1.2 kΩ; CL = 50 pF

see: Figure 3 “Timing

Definition” on Page 9

Output rise time tr–0.4 1µs

Chopper frequency fOSC –320 –kHz

Switching

frequency

fSW 0 – 15

2) To operate the sensor at the max. switching frequency, the value of the magnetic signal amplitude must be

1.4 times higher than for static fields.

This is due to the - 3 dB corner frequency of the low pass filter in the signal path.

2) kHz

Delay time

3) Systematic delay between magnetic threshold reached and output switching

3) td–13 –µs

Output jitter

4) Jitter is the unpredictable deviation of the output switching delay

4) tQJ –1 –µsRMS Typical value for square

wave signal 1 kHz

Power-on time

5) Time from applying VS ≥ 2.7 V to the sensor until the output state is valid

5) tPON –13 –µs VS ≥ 2.7 V

Thermal resistance

6) Thermal resistance from junction to ambient

RthJA – – 190 K/W PG-SSO-3-2

Note: Typical characteristics specify mean values expected over the production spread.

Table 6 Magnetic Characteristics TLE4946-1L 1)

Parameter Symbol Tj [°C] Limit Values Unit Notes

min. typ. max.

Operate point BOP – 40

150

11.3

11.0

10.5

15.4

15.0

14.3

19.5

19.0

18.1

Release point BRP – 40

150

–

19.5

–

19.0

–

18.1

–

15.4

–

15.0

–

14.3

–

11.3

–

11.0

– 10.5

Hysteresis BHYS – 40

150

–

22.0

–

30.0

–

38.0

–

Magnetic Offset BOFF – 40

150

–

– 2.0

–

2.0

–

2) BOFF = (BOP + BRP) / 2

Temperature

compensation of

magn. thresholds

TC – – - 350 –ppm/°C

Repeatability of

magnetic

thresholds

3) BREP is equivalent to the noise constant

BREP –20 –µTRMS Typ. value for

∆B / ∆t

> 12 mT/ms

TLE4946-1L

Electrical and Magnetic Parameters

Data Sheet 8 Rev 1.2, 2008-12

Field Direction Definion

Positive magnetic fields related with south pole of magnet to the branded side of

package.

1) over operating range, unless otherwise specified. Typical values correspond to VS = 12 V.

TLE4946-1L

Timing Diagram

Data Sheet 9 Rev 1.2, 2008-12

6 Timing Diagram

Figure 3 Timing Definition

Applied

Magnetic

Field

90%

10%

TLE4946-1L

Package Information

Data Sheet 10 Rev 1.2, 2008-12

7 Package Information

7.1 Package Marking

Year (y) = 0 ... 9

Calendar Week (ww) = 01 ... 52

yww

46 1

AEP03644

Figure 4 Marking TLE4946-1L

TLE4946-1L

Package Information

Data Sheet 11 Rev 1.2, 2008-12

7.2 Distance between Chip and Package Surface

Figure 5 Distance Chip PG-SSO-3-2 to Upper Side of IC

PG-SSO-3-2 : 0.57

d : Distance chip to upper side of IC

±0.08

AEA02510-1

Hall-Probe

Branded Side

TLE4946-1L

Package Information

Data Sheet 12 Rev 1.2, 2008-12

7.3 Package Outlines

GPS09473

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

Figure 6 PG-SSO-3-2

Note: You can find all of our packages, sort of packing and others on our Infineon

Internet page “Products”: http://www.infineon.com/products

TLE4946-1L

Notes

Data Sheet 13 Rev 1.2, 2008-12

www.infineon.com

Published by Infineon Technologies AG