TLE4925 Datasheet, PDF (10/25 Pages) Infineon Technologies AG – Differential Hall Sensor

PRELIMINARY
2.2.10
delay time
t_d
7 12.5
2.2.11 Temperature drift of
delay time of output to
magnetic edge
2.2.12
Frequency range
2.2.13 Oscillator frequency
2.2.14 Offset recalibration time
after last output change
2.2.15
Clamping voltage
V_S-Pin
2.2.16 Clamping voltage Q- Pin
2.2.17 Analog reset voltage
∆t_d
f
f_OSC
t_reset
V_Sclamp
V_Qclamp
V_sReset
-6
0.001
1.08
625
24
24
3⁷
1.34
780
27.5
27.5
2.35
18
20⁶
6
8
1.68
970
2.9
µs Only valid for Tj=25°C.
µs Valid for Tj=-40°C till
Tj=175°C.
Higher magnetic
slopes and overshoots
reduce t_d, because the
signal is filtered
internal.
µs Time over specified
temperature range;
not additional to t_d
kHz Operation below 1Hz⁸
MHz -
ms Output locked to state
before recalibration
V I_S = 20mA < 5min.
V I_Q = 20mA < 5min.
V-
Note: The listed AC/DC and magnetic characteristics are ensured over the operating range of the
integrated circuit. Typical characteristics specify mean values expected over the production
spread. If not other specified, typical characteristics apply at T_j = 25 °C and V_S = 12 V.
2.3 Magnetic Characteristics in Running Mode
No.
Parameter
Symbol ^{min typ max Unit}
Remarks
2.3.1
2.3.2
2.3.3
Bias preinduction
Differential bias induction
Minimum signal
amplitude
B₀
∆B₀
∆B_min
-500
-30
0.55
500 mT -
30 mT -
1.5 mT ⁹
2.3.4
Maximum signal
amplitude
∆B_max
100 mT Additional to B₀ ¹⁰
2.3.5
Resistivity against
∆B_min -0.2
mechanical stress (piezo)
0.2 mT F= 2N
5 _{see footnote 6.}
6 _{only valid for the falling edge.}
7 _{related to Tj= 175°C.}
8 _{output will switch if magnetic signal is changing more that 2x∆Bmin within offset recalibration time}
even below 1Hz once per magnetic edge
9 _{includes also former Bm of TLE4941-2.}
10 _{exceeding this limit might result in decreased duty cycle performance. With higher values the internal}
measured signal will be clipped. This will decrease the phase accuracy.
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