TLE4998S3C Datasheet, PDF (28/36 Pages) Infineon Technologies AG – Programmable Linear Hall Sensor

TLE4998S3C
Calibration
Table 16 Programming Characteristics
Parameter
Symbol Limit Values Unit Notes
Number of EEPROM
programming cycles
N_PRG
min.
-
max.
10
Cycles¹⁾ Programming allowed
only at start of lifetime
Ambient temperature at T_PRG 10
30
°C
programming
Programming time
t_PRG
100
-
ms
For complete memory ²⁾
Calibration memory _-
150
Bit
All active EEPROM bits
Error Correction
-
26
Bit
All parity EEPROM bits
1) _{1 cycle is the simultaneous change of ≥ 1 bit}
2) _{Depending on clock frequency at VDD, write pulse 10 ms ±1%, erase pulse 80 ms ±1%}
9.2
Programming Interface
The VDD pin and the OUT pin are used as a two-wire interface to transmit the EEPROM
data to and from the sensor.
This allows:
• Communication with high data reliability, parity protected
• The bus-type connection of several sensors and separate programming via the OUT
pin
9.3
Data Transfer Protocol
The data transfer protocol is described in a separate document (User Programming
Description), available on request.
9.4
Programming of Sensors with Common Supply Lines
In many automotive applications, two sensors are used to measure the same parameter.
This redundancy makes it possible to continue operation in an emergency mode. If both
sensors use the same power supply lines, they can be programmed together in parallel.
Data Sheet
28
Rev 1.1, 2009-09