tle4997i Infineon Technologies Corporation, tle4997i Datasheet - Page 29

• Manufacturer Part Number: tle4997i
• Description: Programmable Linear Hall Sensor For Industrial Use
• Manufacturer: Infineon Technologies Corporation

Table 18
Parameter
Number of EEPROM
programming cycles
Junction temperature at
programming
Programming time
Calibration memory
Error correction
1)
2)
9.2
The supply pin and the output pin are used as two-wire interface to transmit the
EEPROM data to and from the sensor.
This allows
• a communication with high data reliability
• the bus-type connection of several sensors
9.3
The data transfer protocol must be handled by an external programming tool. A
evaluation tool running with a standard PC and protocol details are available on request.
This procedure needs to be followed by the customer accurately to ensure good data
retention.
9.4
In many applications two sensors are used to measure the same parameter.
If both sensors use the same power supply lines, they can be programmed together (fully
parallel) or separately (sequential), by selection via the different output lines.
Preliminary Data Sheet
1 cycle is the simultaneous change of ≥ 1 bit. For experimental and evaluation purposes, the device may be
programmed more often, but then the data retention is no longer guaranteed.
Depending on clock frequency at
Programming Interface
Data transfer protocol
Programming of sensors with common supply lines
Programming Characteristics
Symbol Limit Values
N
T
t
-
-
PRG
PRG
PRG
V
DD
.
min.
-
10
80
135
25
29
max.
8
30
-
Unit
Cycles
1)
°C
ms
Bit
Bit
Notes
programming only at
start of lifetime allowed
for complete memory
all active EEPROM bits
all parity EEPROM bits
V 1.01, 2006-09
Calibration
TLE4997I
2)