TLE4941PLUSC

Manufacturer Part NumberTLE4941PLUSC
DescriptionIC HALL EFFECT SENSOR SSO2-53
ManufacturerInfineon Technologies
TypeSpecial Purpose
TLE4941PLUSC datasheet
 

Specifications of TLE4941PLUSC

Voltage - Supply4.5 V ~ 20 VCurrent - Supply8.4mA
Output TypeDigital, PWM (Current)FeaturesHigh Sensitivity
Operating Temperature-40°C ~ 150°CPackage / Case2-SIP, SSO-2-53
Lead Free Status / RoHS StatusLead free / RoHS CompliantSensing Range-
Current - Output (max)-  
1
Page 1
2
Page 2
Page 1/2

Download datasheet (210Kb)Embed
Next
Product Brief
TLE 4941plusC
Differential Hall IC for Wheel Speed Sensing
 
TLE 4941plusC, a differential Hall sensor for measuring magnetically the car´s
wheel speed, is the latest offspring of the extremely successful TLE 4941 family,
based on Infineon’s most recent sensor technologies for front- and backend.
Designed as drop-in replacement the TLE 4941plusC is, as its predecessors, a
single chip solution combining Hall sensor elements and both analogue and
digital signal processing in one single chip. Its differential principle makes it
immune to any kind of undesired magnetic fields and disturbances. The Hall
element distance has been downsized to 2 mm to be also fit for extremely
small encoders. Several product improvements, both electrical and magnetic,
have been put in place, such as an accelerated calibration during start-up pha-
se and higher load dump robustness. The formerly optional first-edge-detection,
a feature for quick start-up, providing a reliable output signal even before cali-
bration is fully completed, has now become standard.
 
 
TLE 4941plusC has a standard 2-wire current interface, high ESD robustness
and works in the wide temperature range present in the harsh automotive
environment. Magnetic and device offsets are cancelled by a sophisticated self-
calibration algorithm immediately after start-up.
The TLE 4941plusC is an extremely robust product due to Infineon’s high quality
standards as experienced automotive semiconductor supplier. After several
hundred million units sold, Infineon’s active wheel speed sensors have largely
proven to be the perfect match for wheel speed sensing in all aspects of functio-
nality, robustness and flexibility.
 
www.infineon.com/sensors
Applications
Reliable Wheel Speed Sensing in
automotive applications
 
Anti-lock Braking System (ABS)
 
Electronic Stability Program (ESP)  
 
Automatic Transmissions 
 
 
 
Features
Two-wire current interface: Minimizes
wiring
 
Dynamic self-calibration principle:
Compensates offsets
 
Single chip solution: Ensures outstan-
ding reliability
 
High sensitivity: Can be used for large
airgap applications
 
South and north pole pre-induction
possible: Works for both encoders
and tonewheels
 
High resistance to piezo effects: Suits
sensor  overmolding wide operating
temperature range
 
C type with 1.8 nF overmolded capa-
citor: Enhances EMC & microbreak
resistance, without any external
components  
 

TLE4941PLUSC Summary of contents

  • Page 1

    Product Brief TLE 4941plusC Differential Hall IC for Wheel Speed Sensing   TLE 4941plusC, a differential Hall sensor for measuring magnetically the car´s wheel speed, is the latest offspring of the extremely successful TLE 4941 family, based on Infineon’s most ...

  • Page 2

    ... Differential Hall IC for Wheel Speed Sensing TLE 4941plusC block diagram The TLE4941plusC signal path includes a pair of hall probes (2 mm spacing), a differential amplifier and a comparator feeding a switched current output stage. Additionally, the circuit has a feedback loop for offset compensation which consists of a signal-Speed ADC, a digital signal processor (DSP) and an offset D/A converter. ...