Q67006-A9171 INFINEON [Infineon Technologies AG], Q67006-A9171 Datasheet

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Q67006-A9171

Manufacturer Part Number
Q67006-A9171
Description
Dynamic Differential Hall Effect Sensor IC
Manufacturer
INFINEON [Infineon Technologies AG]
Datasheet
Dynamic Differential Hall Effect Sensor IC
Features
• Advanced performance
• High sensitivity
• Symmetrical thresholds
• High piezo resistivity
• Reduced power consumption
• South and north pole pre-induction possible
• AC coupled
• Digital output signal
• Two-wire and three-wire configuration possible
• Large temperature range
• Large airgap
• Low cut-off frequency
• Protection against overvoltage
• Protection against reversed polarity
• Output protection against electrical disturbances
Type
TLE 4921-3U
The differential Hall Effect sensor TLE 4921-3U provides a high sensitivity and a superior
stability over temperature and symmetrical thresholds in order to achieve a stable duty
cycle. TLE 4921-3U is particularly suitable for rotational speed detection and timing
applications of ferromagnetic toothed wheels such as anti-lock braking systems,
transmissions, crankshafts, etc. The integrated circuit (based on Hall effect) provides a
digital signal output with frequency proportional to the speed of rotation. Unlike other
rotational sensors differential Hall ICs are not influenced by radial vibration within the
effective airgap of the sensor and require no external signal processing.
Data Sheet
Marking
21C3U
1
Ordering Code
Q67006-A9171
P-SSO-4-1
Package
P-SSO-4-1
TLE 4921-3U
Bipolar IC
2000-07-01

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Q67006-A9171 Summary of contents

Page 1

... Unlike other rotational sensors differential Hall ICs are not influenced by radial vibration within the effective airgap of the sensor and require no external signal processing. Data Sheet P-SSO-4-1 Ordering Code Package Q67006-A9171 P-SSO-4-1 1 TLE 4921-3U Bipolar IC 2000-07-01 ...

Page 2

Pin Configuration (view on branded side of component) Figure 1 Pin Definitions and Functions Pin No. Symbol GND 4 C Data Sheet Center of sensitive area ±0.15 2.67 2 ...

Page 3

Protection Device Hall-Probes 3 GND Figure 2 Block Diagram Data Sheet Internal Reference and Supply V (3V) reg Highpass- Schmitt- Filter Trigger Amplifier TLE 4921-3U Open Protection Collector Device 2 Q AEB01695 2000-07-01 ...

Page 4

Functional Description The Differential Hall Sensor IC detects the motion and position of ferromagnetic and permanent magnet structures by measuring the differential flux density of the magnetic field. To detect ferromagnetic objects the magnetic field must be provided by a ...

Page 5

Absolute Maximum Ratings T = – 150 C j Parameter Supply voltage Output voltage Output current Output reverse current Capacitor voltage Junction temperature Junction temperature Junction temperature Junction temperature Storage temperature Thermal resistance P-SSO-4-1 Current through input- protection ...

Page 6

Operating Range Parameter Supply voltage Junction temperature Pre-induction Differential induction Note: In the operating range the functions given in the circuit description are fulfilled. AC/DC Characteristics Parameter Symbol I Supply current S V Output saturation QSat voltage Output leakage I ...

Page 7

AC/DC Characteristics (cont’d) Parameter Symbol t Output fall time f 3) Delay time t dop t drp t dop R Filter input C resistance S Filter sensitivity Filter bias voltage C Frequency f B Resistivity against ...

Page 8

R 300 4 Figure 3 Test Circuit Figure 4 Test Circuit 2 Data Sheet ...

Page 9

Application Configurations Two possible applications are shown in Figure 7 and 8 (Toothed and Magnet Wheel). The difference between two-wire and three-wire application is shown in Figure 9. Gear Tooth Sensing In the case of ferromagnetic toothed wheel application the ...

Page 10

Hall Sensor 1 Signal Processing Circuitry Figure 7 TLE 4921-3U, with Ferromagnetic Toothed Wheel S Hall Sensor 1 Signal Processing Circuitry Figure 8 TLE 4921-3U, with Magnet Wheel Data Sheet S (N) N (S) Magnet Wheel N 10 TLE 4921-3U ...

Page 11

Two-wire-application C 470 nF for example : Three-wire-application 470 nF for example : R = 330 ... P Figure 9 Application Circuits Data Sheet ...

Page 12

Wheel Profile Magnetic Field Difference B = B2-B1 Operate point : < Release point : > The magnetic field is defined as positive if the south pole of the ...

Page 13

Quiescent Current versus Supply Voltage 10 7 OFF 5.0 2 Quiescent Current Difference versus Temperature 1 0. ...

Page 14

Saturation Voltage versus Temperature 0 4 0.3 0.2 0 Saturation Voltage versus Supply Voltage 0 ...

Page 15

Switching Induction versus Temperature 200 Hz max 1 typ 0 min - Minimum Switching Field versus Frequency 3.0 B min mT C ...

Page 16

Delay Time between Switching Threshold B V and Falling Edge dop dop 1 Delay Time ...

Page 17

Rise and Fall Time versus Temperature 100 - Capacitor Voltage versus Temperature 3 2.5 2.0 ...

Page 18

Filter Sensitivity versus Temperature - typ - - Delay Time for Power from 4.5 V) versus Temp. pon 0.35 ...

Page 19

Package Outlines P-SSO-4-1 Plastic Single Small Outline Package ( 5.38 ±0.05 0.2 5.16 ±0.08 1.9 max. 0.6 max. +0.05 0.4 1.27 3.81 6.35 ±0.4 Sorts of Packing Package outlines for tubes, trays etc. are contained in our Data Book “Package ...

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