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TLE4923 Datasheet(PDF) 7 Page - Siemens Semiconductor Group

No. de pieza TLE4923
Descripción Electrónicos  Dynamic Differential Hall Effect Sensor IC
PDF  18 Pages
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Fabricante Electrónico  SIEMENS [Siemens Semiconductor Group]
Página de inicio  http://www.siemens.com/
Logo SIEMENS - Siemens Semiconductor Group

TLE4923 Datasheet(HTML) 7 Page - Siemens Semiconductor Group

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TLE 4923
Semiconductor Group
7
1998-04-29
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.
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 IL can be
calculated by:
. 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
C
F. The cut-off frequency is given as
. 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.
Power Supply
Rejection Ratio
(PSRR)
V
PSRR
10
V
V
S modulated
with
V
PSRR,
f
PSRR =10 kHz,
t
r,fPSRR =1 µs,
B =0,
only 1 transition
may occur
2
7)
AC/DC Characteristics (cont’d)
The device characteristics listed below are guaranteed in the full operating range.
Parameter
Symbol
Limit Values
Unit
Test Condition Test
Circuit
min. typ. max.
B
m
I
L
R
C T
()
×
S
C T
()
---------------------
=
f
1
2
π
×
R
C
×
C
F
×
----------------------------------------
=



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