TLE4997E2 Infineon Technologies, TLE4997E2 Datasheet - Page 15

• Manufacturer Part Number: TLE4997E2
• Description: IC HALL SENSOR LINEAR SSO-3
• Manufacturer: Infineon Technologies
• Type: Linear - Programmabler

Specifications of TLE4997E2

• Sensing Range: -200mt Trip ~ 200mT Release
• Voltage - Supply: 4.5 V ~ 5.5 V
• Current - Supply: 10mA
• Current - Output (max): 1mA
• Output Type: Analog, Ratiometric
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 3-SIP, SSO-3-10
• Operating Supply Voltage: 5 V
• Mounting Style: Through Hole
• Maximum Operating Temperature: + 150 C
• Minimum Operating Temperature: - 40 C
• Maximum Output Current: 30 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: SP000235288

Ratiometry
The linear Hall sensor works like a potentiometer. The output voltage is proportional to
the supply voltage. The division factor depends on the magnetic field strength. This
behavior is called “ratiometric”’.
The supply voltage
microcontroller. In this case, variations of
The ratiometry error is defined as follows:
The ratiometry error band displays as a “Butterfly Curve”.
Figure 4
Note: Take care of possible voltage drops on the V
Data Sheet
E
RAT
result. Ideally, both values are acquired and their ratio is calculated to gain the
highest accuracy. This method should be used especially during calibration.
=
E
%
RAT



V
------------------------------ -
OUT
-0.25
-0.75
0.75
0.25
-0.5
0.5
V
Ratiometry Error Band
1
-1
DD
(
0
V
DD
V
)
DD
–
V
-------------------------- -
4
should be used as the reference for the A/D Converter of the
OUT
5V
(
5V
)



×
100
V
5
%
15
DD
are compensated.
Electrical and Magnetic Parameters
DD
and V
6
OUT
line degrading the
V
DD
V 2.08, 2008-09
7
TLE4997
V