TLE4998C3 Infineon Technologies, TLE4998C3 Datasheet - Page 26

• Manufacturer Part Number: TLE4998C3
• Description: IC HALL SENSOR LINEAR SSO-3
• Manufacturer: Infineon Technologies
• Type: Linear - Programmabler

Specifications of TLE4998C3

• Sensing Range: -200mt Trip ~ 200mT Release
• Voltage - Supply: 4.5 V ~ 5.5 V
• Current - Supply: 8mA
• Current - Output (max): 5mA
• Output Type: Digital, PWM (Current)
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 3-SSO
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Other names: SP000476468

3)
8.1
The parameters TC
Now the digital output for a given field
B
S
S
S
The pre-calibration at Infineon is performed such that the following condition is met:
Within the application, an additional factor
system.
satisfied:
Therefore, the new sensitivity parameters
calibrated setup
Data Sheet
FSR
0
TC
TCHall
Handled by algorithm only (see Application Note)
is the nominal sensitivity of the Hall probe times the Gain factor set in the EEPROM.
is the temperature-dependent sensitivity factor calculated by the DSP.
is the full-range magnetic field. It is dependent on the range setting (e.g 100 mT).
is the temperature behavior of the Hall probe.
S
TC
Parameter Calculation
then needs to be modified to
--------------------
B
B
IN
OUT
IN
S
(
T ( )
TC
T
1
0
)
using the relationship:
and TC
=
×
S
2
TCnew
⋅



------------ -
B
--------------------
B
S
2
B
B
FSR
TC
TC
TC
IN
may be calculated by:
IN
IN
T ( ) S
(
(
T ( )
T
2
1
T
×
0
J
×
=
=
S
)
–
TC
×
B
TQ
-----------------------
T
TL
--------------------- -
TCHall
8388608
S
IN
0
65536
×
TCnew
)
at a specific temperature can be calculated by:
–
–
S
×
26
B
TCHall
160
128
S
T ( )
IN
TCHall
S
S
T ( )
(T) /
TCnew
TCnew
×
×
≈
1000000
1000000
×
≈
S
(
B
TC
S
S
T
IN
0
TC
J
so that the following condition is
can be calculated from the pre-
T ( )
Temperature Compensation
×
)
(T
≈
T ( )
4096
0
1
) is given due to the magnetic
×
S



TCHall
+
OUT
T ( )
OS
≈
TLE4998C3C
Rev 1.1, 2009-09
1