TLE4923_05 Datasheet, PDF (12/24 Pages) Infineon Technologies AG – Dynamic Differential Hall Effect Sensor IC

TLE4923
Electrical Parameters
Table 4
Electrical Characteristics (cont’d)
The device characteristics listed below are guaranteed in the full operating range.
Parameter
Symbol
Limit Values
Unit
min. typ. max.
Test
Condition
Test
Circuit
Resistivity
against
mechanical
stress (piezo) ⁶⁾
Power supply
rejection ratio
(PSRR)
∆B_m
∆B_H
V_PSRR
-0.1 –
-0.1 –
10
–
0.1 mT F = 2 N
2
0.1 mT
–
V
V_S modulated 2 ⁷⁾
with V_PSRR,
f_PSRR = 10 kHz,
t_r,fPSRR = 1 µs,
∆B = 0, only
1 transition
may occur
1) For ∆B values larger than ±10 mT this value may exceed the limits as follows: | ∆B_m | < | 0.05 × ∆B |
2) Leakage currents at pin 3 should be avoided. The bias shift of B_m caused by a leakage current I_L can be
calculated by:
∆B_m
=
I_--L----×_---R_----C---(_--T_---)
S_C(T)
. See also the typical curves on Page 22.
3) Differential pre-induction (e.g. by magnetic misalignment) has to be smaller than 20 mT.
4) For definition see Figure 6.
5)
Depends on filter capacitor C_F. The cut-off frequency is given as
f
=
-------------------¹--------------------
2 × π × R_C × C_F
.
The switching points
are guaranteed over the whole frequency range, but amplitude modification and phase shift have to be taken
into account due to the 1^st order highpass filter.
6) For definition see Figure 7.
7) For definition see Figure 5.
Note: The listed characteristics are ensured over the operating range of the integrated
circuit. Typical characteristics specify mean values expected over the production
spread. If not otherwise specified, typical characteristics apply at T_j = 25°C and the
given supply voltage.
Data Sheet
12
V 1.0, 2005-04