TLE4990 Datasheet, PDF (12/24 Pages) Infineon Technologies AG – Programmable Linear Output Hall Sensor

TLE4990
Programmable Linear Hall Sensor
Electrical and Magnetic Parameters
Magnetic Parameters
Table 5
Magnetic Characteristics
Parameter Symbol Limit Values
Unit Notes
min. typ
max.
Sensitivity
S
15
-
Magnetic field MFR
range
19.8 20
± 13.05 -
26.1 -
180
20.2
± 204.5
409
mV/mT programmable for
TLE4990 and
TLE4990-E6785 ^{1) 2)}
mV/mT Version -E6782 ^{1) 3)}
mT
Bipolar-Bit =1 ⁴⁾
Bipolar-Bit =0 ⁴⁾
Linearity
± 115.8 ± 117.5 ± 118.2
Version -E6782
Lin
99.9 100
100.1 %
5)
Temperature α
coefficient of
sensitivity
200
350
500
ppm/ TLE4990 and
°C
TLE4990-E6782 ⁶⁾
-150 0
150
TLE4990-E6785 ⁶⁾
Sensitivity drift ∆S_L
over lifetime
-0.9 -
0.9
%
T_a = 25 °C
Zero field drift ∆B₀
over
temperature
-500 -
150
µT
valid for
S > 80 mV/mT ⁷⁾
Resolution
B_n
20
-
60
µT_RMS ⁸⁾
1) _{@ VDD = 5 V}
2) _{In the lowest programmable sensitivity range a sensitivity less or equal to min(S) is guaranteed.}
In the highest programmable sensitivity range a sensitivity of greater or equal to max(S) is guaranteed.
The ratio of max(S) / min(S) ≥ 15.
3) _{@ 25 °C}
4) _{Not for the -E6782 version.}
5) _{B10% is the magnetic field, at which VOUT = 0.1 x VDD.}
B_90% is the magnetic field, at which V_OUT = 0.9 x V_DD.
V_OUT,id = [0.1 + 0.8 x (B - B_10%) / (B_90% - B_10%)] x V_DD.
Lin = (V_OUT / V_OUT,id - 1) · 100% for all V_OUT between 10% V_DD and 90% V_DD.
6) _{The temperature coefficient of the magnetic sensitivity is the slope of a linear least-square fit through}
the real curve.
7) _{For lower sensitivities, the zero voltage drift is dominant (see Table 4).}
8) _{Equivalent to magnetic input noise at 25 °C. The equivalent magnetic input noise depends on the selected}
sensitivity. At highest sensitivity it is typically 25 µT_RMS, at lowest sensitivity it is typically 50 µT_RMS at 25 °C.
Data Sheet
12
V 2.0, 2004-05