EQ0321 Datasheet, PDF (10/20 Pages) Asahi Kasei Microsystems – Programmable linear Hall IC for 1 axis

[EQ0321]
9. Non-volatile Memory Characteristics
Table 8. Non-volatile Memory Characteristics
V_DD = 2.7 ~ 5.5 V, Ta = -30 ~ 85 ^oC, unless otherwise specified.
Parameter
Symbol
Condition
Min. Typ.
EEPROM Endurance EEN
EEPROM Data
ERE
(Note 1)
10
Retention
(Note 1) Data retention is not guaranteed after rewritten over 1000 cycles
Max. Unit
1000 Cycles
Years
10. Functional Descriptions
10.1 Positional relation of the magnet and the EQ0321
The EQ0321 and a magnet should be placed as Figure 9.
S
N
( - ) s_－id_側e
＋^{( +}側^{) side}
< Magnet moving direction >
Figure 9. Positional relation of magnet and the EQ0321
When the magnet moves from “( - ) side” to “( + )side”, the output voltage increases with magnet position as
Figure 10.
Figure 10. The output voltage with magnet position
10.2 Output voltage, Gain, Offset
The EQ0321 has two Hall elements. The EQ0321 outputs the voltage in proportion to following equations
which operated Magnetic Flux Density (= M.F.D.) applied on each Hall element.
MS1436-E-00
- 10 -
2013/04