TLE4966LHALA1 - INFINEON TECHNOLOGIES AG

Data Sheet, V 2.0, February 2009

TLE4966L

High Precision Hall-Effect Switch with

Direction Detection

Sensors

Edition 2009-02

Published by

Infineon Technologies AG

81726 München, Germany

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TLE4966L

Revision History: 2009-02 V 2.0

Previous Version: V 1.2

Page Subjects (major changes since last revision)

TLE4966H removed

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TLE4966L

Data Sheet 4 V 2.0, 2009-02

1Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.2 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.3 Pin Configuration (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.1 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.2 Circuit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3 Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4 Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

5 Electrical and Magnetic Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Field Direction Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

6 Timing Diagrams for the Speed and Direction Outputs . . . . . . . . . . . . 12

7 Package Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

7.1 Package Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

7.2 Distance between Chip and Package Surface . . . . . . . . . . . . . . . . . . . . . 14

7.3 Package Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Type Package

TLE4966L PG-SSO-4-1

High Precision Hall-Effect Switch with Direction

Detection

TLE4966L

Data Sheet 5 V 2.0, 2009-02

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)

• Digital output signals

• Bipolar version

• Excellent matching between the 2 Hall probes

• Hall plate distance 1.45 mm

• Direction & speed information

• Direction signal switches before the speed signal

1.2 Functional Description

The TLE4966L is an integrated circuit double 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.

The IC provides a speed signal at Q2 for every magnetic pole pair and a direction

information at Q1, which is provided before the speed signal.

TLE4966L

Overview

Data Sheet 6 V 2.0, 2009-02

1.3 Pin Configuration (top view)

1234

PG-SSO-4-1

1.45

Center of

Sensitive Area

± 0. 1

1.53

± 0 .1

2.67

speeddir ection

Figure 1 Pin Definition and Center of Sensitive Area

Table 1 Pin Definitions and Functions

Pin No. Symbol Function

1VSSupply voltage

2Q1 Direction

3Q2 Speed

4GND Ground

TLE4966L

General

Data Sheet 7 V 2.0, 2009-02

2 General

2.1 Block Diagram

Voltage Regulator

(reverse polarity protected)

Oscillator

& Sequencer

Bias and

Compensation

Circuits

Filter

Amplifier

Direction

Detection

Chopped

Hall

Probe

ESD

Comparator

with

Hysteresis Q1

GND

Chopped

Hall

Probe

Figure 2 Block Diagram

2.2 Circuit Description

The chopped Double Hall Switch comprises two Hall probes, bias generator,

compensation circuits, oscillator, and output transistors.

The bias generator provides currents for the Hall probes 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 probes caused by molding and soldering processes and

other thermal stresses in the package. This chopper technique together with the threshold

generator and the comparator ensures high accurate magnetic switching points.

TLE4966L

Maximum Ratings

Data Sheet 8 V 2.0, 2009-02

3 Maximum Ratings

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 k

Ω

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

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 –±4 kV HBM, R = 1.5 kΩ,

C = 100 pF

TA = 25°C

TLE4966L

Operating Range

Data Sheet 9 V 2.0, 2009-02

4 Operating Range

Table 4 Operating Range

Parameter Symbol Limit Values Unit Conditions

min. typ. max.

Supply voltage VS2.7

–

1 h with RS ≥ 200 Ω

for 5 min RS ≥ 200 Ω

Output voltage VQ-0.7 –18 V

Junction

temperature

Tj-40

–

150

175

°C

for 168 h

Output current IQ0 – 10 mA

TLE4966L

Electrical and Magnetic Parameters

Data Sheet 10 V 2.0, 2009-02

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 IS45.2 7mA VS = 2.7 V ... 18 V

Reverse current ISR 00.2 1mA VS = -18 V

Output saturation

voltage

VQSAT –0.3 0.6 VIQ = 10 mA

Output leakage

current

IQLEAK –0.05 10 µA for VQ = 18 V

Output fall time tf–0.2 1µs

= 1.2 k

Ω

;

< 50 pF

see:

Figure 3

Page 12

Output rise time tr–0.2 1µs

Chopper frequency fOSC –320 –kHz

Switching frequency fSW 0 – 15

2) To operate the sensor at the max. switching frequency, 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

Count Signal Delay tdc 50 200 1000 ns

Output jitter

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

4) tQJ –1 –µsRMS Typ. value for square-

wave signal 1 kHz

Repeatability of

magnetic thresholds

5) BREP is equivalent to the noise constant

BREP –40 –µTRMS Typ. value for

∆B/∆t > 12 mT/ms

Power-on time

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

6) tPON –13 –µsVS ≥ 2.7 V

Distance of hall plates dHALL –1.45 –mm

Thermal resistance

7) Thermal resistance from junction to ambient

7) RthJA –- -–190 K/W PG-SSO-4-1

Calculation of the ambient temperature:

e.g. for VS = 12.0 V, IStyp = 5.5 mA, VQSATtyp = 0.3 V and 2 x IQ = 10 mA :

Power Dissipation: PDIS = 72.0 mW.

In TA = Tj – (RthJA × PDIS) = 175°C – (190 K/W × 0.072 W)

Resulting max. ambient temperature: TA = 161.3°C

Table 6 Magnetic Characteristics 1).

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

Parameter Symbol Tj [°C] Limit Values Unit Conditions

min. typ. max.

Operate point BOP -40

150

5.2

5.0

4.7

7.7

7.5

7.1

10.3

10.0

9.5

Release point BRP -40

150

-10.3

-10.0

-9.5

-7.7

-7.5

-7.1

-5.2

-5.0

-4.7

Hysteresis BHYS -40

150

–

10.0

–

15.0

–

20.0

–

Magnetic

matching BMATCH -40

150

–

-2.0

–

2.0

–

mT Valid for

BOP1 - BOP2

and

BRP1 - BRP2

Magnetic offset BOFF -40

150

–

-2.0

–

2.0

–

mT (BOP + BRP)/2

Temperature

compensation of

magnetic

thresholds

TC – – -350 –

ppm/°C

TLE4966L

Electrical and Magnetic Parameters

Data Sheet 11 V 2.0, 2009-02

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

Field Direction Definition

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

package.

TLE4966L

Timing Diagrams for the Speed and Direction Outputs

Data Sheet 12 V 2.0, 2009-02

6 Timing Diagrams for the Speed and Direction

Outputs

Applied Magnetic Field

90%

10%

BOP

BRP

Figure 3 Timing Definition of the Speed Signal

Speed

Direction

Change of Direction

Figure 4 Timing Definition of the Direction Signal

Rotation

Direction

TLE4966

Branded Side of

TLE4966L

Timing Diagrams for the Speed and Direction Outputs

Data Sheet 13 V 2.0, 2009-02

Figure 5 Definition of the Direction Signal

Rotation Direction State of Direction Output VQ1

Left to right Low

Right to left High

TLE4966L

Package Information

Data Sheet 14 V 2.0, 2009-02

7 Package Information

7.1 Package Marking

Figure 6 Marking PG-SSO-4-1

Year (yy) = 00 ... 99

Calendar Week (ww) = 01 ... 52

yyww

4966B

AEP03646

Figure 7 Marking

7.2 Distance between Chip and Package Surface

AEA03255

Branded Side

d: Distance to Upper Side of IC

P-SSO-4-1: ±0.1

0.3 mm

Figure 8 Distance Chip to Upper Side of IC

TLE4966L

Package Information

Data Sheet 15 V 2.0, 2009-02

7.3 Package Outlines

Figure 9 PG-SSO-4-1

6.35

±0.4

12.7

±0.3

45˚

12.7

±1 -0.1

0.25

±0.05

7˚

0.2

+0.1

Adhesive

±0.5

-1

±0.5

Tape

0.39

±0.1

-0.15

0.25

±0.5

23.8

+0.75

-0.5

38 MAX.

1 MAX.

3.38

3.71

(0.25)

±0.08

±0.06

1.9 MAX.

5.16

±0.08

5.34

±0.05

0.1 MAX.

(14.8)

1.27 1.27 3.81=3

2 A

1) No solder function area

Total tolerance at 10 pitches ±1

(Useable Length)

Tape

±1˚

0.2

±0.05

0.4

0.6 MAX.

4x 0.5

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