mlx90251 Melexis Company, mlx90251 Datasheet - Page 14

• Manufacturer Part Number: mlx90251
• Description: Programmable Linear Hall Effect Sensor
• Manufacturer: Melexis Company

The Memory Lock feature prevents the device from entering programming mode and from any changes to the
EEPROM. The entire EEPROM is locked by setting the MEMLOCK parameter to 1. This should be the last
parameter set in the application.
A unique ID number is programmed into the EEPROM of every IC. The ID number gives Melexis additional
traceability to better service its customers. The ID number is composed of the lot number, wafer number, and
wafer coordinates (X and Y). Memory is also available for the customer to add a serial number of the product
or any other data.
Figure 11-1…11-2 I
3901090251
Rev 009
11 Performance Graphs
10.12 Memory Lock (MEMLOCK)
10.13 IC traceability
-20
-40
-60
-80
60
40
20
0
Under Voltage
-10
Typical I
DD
0
Versus V
V
V
DDNOM
DD
(Volts)
Over Voltage
DD
10
VS V
DD
150
-40
25
DD
°
20
°
C
°
C
C
30
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Programmable Linear Hall Effect Sensor
8.5
7.5
6.5
5.5
4.5
8
7
6
5
4
Typical I
4.5
V
MLX90251
DD
DD
(Volts)
5
VS V
DDNOM
150
-40
25
5.5
Data Sheet
Nov/06
°
°
C
°
C
C
6