 English |
|
|
|
|
|
|
|
| TLE4964-1M Datasheet, PDF (11/26 Pages) Infineon Technologies AG – High Precision Automotive Hall Effect Switch | |||
| |||
| ◁ |
TLE4964-1M
Functional Description
2.6
Default Start-up Behavior
The magnetic thresholds exhibit a hysteresis BHYS = BOP - BRP. In case of a power-on with a magnetic field B within
hysteresis (BOP > B > BRP) the output of the sensor is set to the pull up voltage level (VQ) per default. After the first
crossing of BOP or BRP of the magnetic field the internal decision logic is set to the corresponding magnetic input
value.
VDDA is the internal supply voltage which is following the external supply voltage VDD.
This means for B > BOP the output is switching, for B < BRP and BOP > B > BRP the output stays at VQ.
VDDA
tPon
3V
Power on ramp
VQ
Magnetic field above threshold
B > BOP
VQ
Magnetic field below threshold
The device always applies
VQ level at start -up
t
independent from the
applied magnetic field !
t
B < BRP
t
VQ
Magnetic field in hysteresis
BOP > B > BRP
t
Figure 2-5 Illustration of the Start-up Behavior of the TLE4964-1M
Data Sheet
11
Revision 1.0, 2012-07-20
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese