TLE4923 Datasheet, PDF (7/18 Pages) Siemens Semiconductor Group – Dynamic Differential Hall Effect Sensor IC

TLE 4923
AC/DC Characteristics (cont’d)
The device characteristics listed below are guaranteed in the full operating range.
Parameter
Power Supply
Rejection Ratio
(PSRR)
Symbol Limit Values
min. typ. max.
V_PSRR 10
Unit
V
Test Condition Test
Circuit
V_S modulated 2⁷⁾
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: | ∆Bm | < | 0.05 × ∆B |}
2) _{Leakage currents at pin 3 should be avoided. The bias shift of Bm caused by a leakage current IL can be}
calculated by:
∆B_m
=
I_--L----×_---R_----C---(_--T_---)
S_C(T)
. See also the typical curves on page 17.
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 CF. The cut-off frequency is given as f = 2-----×-----π-----×----}¹_{-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.
Semiconductor Group
7
1998-04-29