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TLE4976-1K PDF Datasheet - Infineon

Part Number TLE4976-1K
Description High Precision Hall Effect Switch
Manufacturers Infineon 
Logo Infineon Logo 
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Preview ( 18 pages )
		
TLE4976-1K datasheet, circuit
February 2009
TLE4976-1K / TLE4976L
High Precision Hall Effect Switch with Current Interface
Data Sheet
Rev. 2.0
Sense & Control

1 page
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TLE4976-1K pdf, schematic
Edition 2009-02-12
Published by
Infineon Technologies AG
81726 Munich, Germany
© 2009 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).
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.

2 Page
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TLE4976-1K equivalent
High Precision Hall Effect Switch with Current
Interface
TLE4976-1K
TLE4976L
1 Product Description
1.1 Overview
The TLE4976-1K and TLE4976L are high precision unipolar Hall switches
with a two wire, 6mA/14mA current interface in a SMD or leaded package.
A chopped measurement principle provides high stability switching
thresholds for operating temperatures between -40°C and 150°C.
1.2 Features
• 3.0V to 24V supply voltage operation
• High sensitivity and high stability of the magnetic switching points
• High resistance to mechanical stress by Active Error Compensation
• Reverse battery protection (-18V)
• Superior temperature stability
• Peak temperatures up to 195°C without damage
• Low jitter (typ. 1µs)
• High ESD performance (± 8kV HBM)
• Digital output signal with current modulation 6mA / 14mA
• Unipolar version
• SMD package SC59 (SOT23 compatible): TLE4976-1K
• Leaded package PG-SSO-3-2: TLE4976L
1.3 Target Applications
The sensor targets all applications where a high precision unipolar magnetic switch is required (e.g. position
sensing). Due to the current interface the number of wires required in the application is minimized thus saving
costs and increasing reliability. This is specially helpful in all applications where the microcontroller is not on the
same PCB as the Hall switch but in some distance.
Product Name
TLE4976-1K
TLE4976L
Data Sheet
Product Type
Hall Effect Switch
Hall Effect Switch
Ordering Code
3
Package
SC59
PG-SSO-3-2
Rev. 2.0, 2009-02-12

5 Page
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TLE4976-1K diode, scr
TLE4976L:
Applied
Magnetic
Brp Field
B op
IS
90%
td
tf
10%
Figure 5 Timing Diagram of TLE4976L
ISHIGH
IS
TLE4976-1K
TLE4976L
Functional Description
td
tr
Figure 6 Output Switching of TLE4976L
0
Bop
ISLOW
Brp B
Data Sheet
7 Rev. 2.0, 2009-02-12

9 Page





Information Total 18 Pages
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