TLE4942C Просмотр технического описания (PDF) - Infineon Technologies
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TLE4942C Datasheet PDF : 18 Pages
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TLE4942, TLE4942C
Initial calibration delay
time
Magnetic edges
required for initial
calibration1)
Number of emitted
pulses with invalid
supplementary
information 2)
Frequency
Frequency changes
Duty cycle
t d,input
nstart
nDR-Start
f
df/dt
duty
Jitter, Tj < 150°C
Tj < 170°C
Jitter, Tj < 150°C
Tj < 170°C
Jitter at board net
ripple
SJit-close
SJit-far
SJit-AC
300 µs Additional to
nstart
6 * magn.
edges
3 * magn.
edges
1
2500 Hz
±100 Hz/ms
40 50 60
% 3) Measured
@∆B = 2mT
sine wave
Def. Figure 7
±2
% 1 s value
±3
%
VCC = 12 V
?B ≥ 2mT
±4
% 1 s value
±6
%
VCC = 12 V
(2mT ≥) ∆B >
∆BLimit
±2
% VCC=13V±6Vpp
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) The first 3 pulses containing direction information can have the wrong rotation information.
(The first pulse after starting with the speed signal can have any length < tStop. At ∆BLimit
output pulses might have any length < tStop).
3) During fast offset alterations, due to the calibration algorithm, exceeding the specified duty
cycle is permitted for short time periods.
TLE4942 - TLE4942C Data Sheet
10
February 2002
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