TLE4941 Datasheet, PDF (6/11 Pages) Infineon Technologies AG – Differential Two-Wire Hall Effect Sensor IC

TLE4941, TLE4941C
AC/DC Characteristics
All values specified at constant amplitude and offset of input signal
Parameter
Symbol
Limit values
Unit
Min Typ Max
Supply current
Supply current
Supply current ratio
I_Low
I_High
I_High/I_Low
5.9 7 8.4 mA
11.8 14 16.8 mA
1.9
Output rise/fall
slew rate
TLE 4941
t_r, t_f
12
7.5
26 mA/µs
24
Output rise/fall
slew rate
t_r, t_f
8
TLE4941C
8
22 mA/µs
26
Current ripple dI_X/dV_CC
Limit threshold
Initial calibration delay
time
Magnetic edges
required for initial
calibration¹⁾
Frequency
Frequency changes
Duty cycle
I_X
∆B_Limit
t _d,input
n_start
f
df/dt
duty
90
0.35 0.8 1.5
300
µA/V
mT
µs
3 6 * magn.
edges
1
2500 Hz
±100 Hz/ms
40 50 60
%
Jitter, T_j < 150°C
T_j < 170°C
Jitter, T_j < 150°C
T_j < 170°C
Jitter at board net
ripple
S_Jit-close
S_Jit-far
S_Jit-AC
±2
%
±3
%
±4
%
±6
%
±2
%
Remarks
R_M ≤ 150 Ω
R_M ≤ 750 Ω
See Figure 4.
R_M = 75 Ω
T < 125°C
T < 170°C
See Figure 4.
Additional to
n_start
2) _Measured
@∆B = 2mT
sine wave
Def. Figure 4
1 s value
V_CC = 12 V
?B ≥ 2mT
1 s value
V_CC = 12 V
(2mT ≥) ∆B >
∆B_Limit
V_CC=13V±6V_pp
0 < f < 50kHz
∆B = 15 mT
* See appendix B
1) _{The sensor requires up to nstart magnetic switching edges for valid speed information after}
power-up or after a stand still condition. During that phase the output is disabled.
2) _{During fast offset alterations, due to the calibration algorithm, exceeding the specified duty}
cycle is permitted for short time periods.
TLE4941 - TLE 4941C Data Sheet
6
Febrary 2002