TLE4941C Infineon Technologies, TLE4941C Datasheet - Page 18

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TLE4941C

Manufacturer Part Number
TLE4941C
Description
IC HALL EFFECT SENSOR ABS SSOP2
Manufacturer
Infineon Technologies
Type
Special Purposer
Datasheet

Specifications of TLE4941C

Voltage - Supply
4.5 V ~ 20 V
Current - Supply
8.4mA
Output Type
Digital, PWM (Current)
Features
High Sensitivity
Operating Temperature
-40°C ~ 150°C
Package / Case
2-SIP, SSO-2-2
Operating Supply Voltage
5 V or 9 V or 12 V
Mounting Style
Through Hole
Maximum Operating Temperature
+ 150 C
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Sensing Range
-
Current - Output (max)
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
SP000015116
TLE4941CX
TLE4941CX
TLE4941CXA

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TLE4941
TLE4941C
Appendix B
Release 1.0
t
Occurrence of Initial Calibration Delay Time
d,input
If there is no input signal (standstill), a new initial calibration is triggered each 0.7 s. This
t
calibration has a duration
of max. 300 µs. No input signal change is detected during
d,input
that initial calibration time.
t
In normal operation (signal startup) the probability of
to come into effect is:
d,input
t
/ time frame for new calibration 300 µs/700 ms = 0.05%.
d,input
t
After IC resets (e.g. after a significant undervoltage)
will always come into effect.
d,input
Magnetic Input Signal Extremely Close to a Switching Threshold of PGA at Signal
Startup
After signal startup generally all PGA switching into the appropriate gain state happens
within less than one signal period. This is included in the calculation for n
. For the
DZ-Start
very rare case that the signal amplitude is extremely close to a PGA switching threshold
and the full range of following speed ADC respectively, a slight change of the signal
amplitude can cause one further PGA switching. It can be caused by non-perfect
magnetic signal (e.g. amplitude modulation due to tolerances of pole-wheel, tooth wheel
or air gap variation). This additional PGA switching can result in a further delay of the
output signal (n
) up to three magnetic edges leading to a worst case of n
= 9.
DZ-Start
DZ-Start
Due to the low probability of this case it is not defined as max. value in the data sheet.
(For a more detailed explanation please refer to the document “TLE4941/42 - Frequently
Asked Questions”).
Data Sheet
18
V2.1, 2005-02

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