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PDF TLE4976-2K Data sheet ( Hoja de datos )
| Número de pieza | TLE4976-2K | |
| Descripción | Hall Effect Switch | |
| Fabricantes | Infineon | |
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TLE4976-2K
Hall Effect Switch with Current Interface
Data Sheet
Rev. 1.2, 2010-08-05
Sense & Control
1 page  
Hall Effect Switch
TLE4976-2K
Hall Effect Switch
1 Product Description
1.1 Overview
The TLE4976-2K is a high precision unipolar Hall switch with a two wire,
6mA/14mA current interface in a SMD 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 26V 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 6 / 14mA
• Unipolar version
• SMD package SC59 (SOT23 compatible)
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
TLE4976-2K
Data Sheet
Product Type
Hall Effect Switch
Ordering Code
SP000505028
3
Package
SC59
Rev. 1.2, 2010-08-05
5 Page 
TLE4976-2K
Specification
3.4 Electrical and Magnetic Characteristics
Product characteristics involve the spread of values guaranteed within the specified voltage and ambient
temperature range. Typical characteristics are the median of the production.
Table 5 General Electrical Characteristics1)
Parameter
Symbol
Values
Unit Note / Test Condition
Min. Typ. Max.
Supply current low
Supply current high
ISLOW
ISHiGH
5 6 7 mA B > BRP
VS = 3V ... 18V
12 14 17 mA B < BOP
VS = 3V ... 18V
Reverse current
Output fall time
Output rise time
Chopper frequency
Switching freq.
Delay time3)
Output jitter4)
ISR – 0.2 mA VS = -18V
tf – 0.4 1.6 µs RS = 100Ω
tr – 0.4 1.6 µs
fOSC
– 320
kHz
fSW – 152) kHz
td – 13
µs
tQJ – 1 – µsRMS Typical value for square wave
signal 1kHz
Power-on time5)
tPON
–
13 –
µs VS ≥ 3.0V
Thermal resistance6)
RthJA
–
100 –
K/W SC59
1) over operating range, unless otherwise specified. Typical values correspond to VS = 12V and TA = 25°C
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 - 3dB corner frequency of the low pass filter in the signal path
3) Systematic delay between magnetic threshold reached and output switching
4) Jitter is the unpredictable deviation of the output switching delay
5) Time from applying VS ≥ 3.0V to the sensor until the output state is valid
6) Thermal resistance from junction to ambient
Calculation of the ambient temperature:
e.g. for VS = 12.0V, RS = 100W, ISHIGHtyp = 14mA :
Power Dissipation: PDIS = 148.4mW.
In TA = Tj – (RthJA x PDIS) = 175°C – (100K/W x 0.15W)
Resulting max. ambient temperature: TA = 160°C
Data Sheet
9 Rev. 1.2, 2010-08-05
11 Page | ||
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