TLE4921-5U Datasheet, PDF (7/24 Pages) Infineon Technologies AG – Dynamic Differential Hall Effect Sensor IC

TLE4921-5U
Release point
∆B_RP 0
–
–
mT f = 200 Hz,
2
∆B = 20 mT
Hysteresis
∆B_Hy 0.5 1.5 2.5 mT ^{f = 200 Hz,}
2
∆B = 20 mT
Overvoltage
protection at
V_SZ
27 –
35 V I_S = 16 mA
1
supply voltage at
output
V_QZ
27 –
35 V I_Q = 16 mA
1
Output rise time t_r
–
–
0.5 µs I_Q = 40 mA
1
C_L = 10 pF
AC/DC Characteristics (cont’d)
Parameter
Sym-
Limit Values Unit
bol
min. typ. max.
Test
Test
Conditions Circuit
Output fall time
t_f
–
– 0.5 µs
Delay time
Filter input
resistance
Filter sensitivity
to ∆B
Filter bias voltage
Frequency
Resistivity against
mechanical stress
(piezo)
t_dop
–
– 25
µs
t_drp
–
t_dop-t_drp ^–
– 10
0 15
µs
µs
R_C
35 43 52
kΩ
S_C
V_C
f
∆B_m
∆B_Hy
–
–5
1.6 2
4)
–
– 0.1 –
– 0.1
–
mV/
mT
2.4 V
20000 Hz
0.1 mT
0.1 mT
I_Q = 40 mA 1
C_L = 10 pF
f = 10 kHz 2
∆B = 5 mT
25 °C ± 2 1
°C
–
1
∆B = 0
1
∆B = 5 mT 2
F=2N
2
2) _{The Current consumption characteristic will be different and the specified values can slightly change}
3) _{Leakage currents at pin 4 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)
4) _{For higher ∆B the values may exceed the limits like following |∆Bm| < |0.05 × ∆B|}
5) _{Depends on filter capacitor CF. The cut-off frequency is given by f = 1/(2π × RC × CF).}
The switching points are guaranteed over the whole frequency range, but amplitude modification and
phase shift due to the 1^st order high-pass filter have to be taken into account.
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
7
2002-08-02