Datasheet

[AK09918]
016014242-E-00 2016/11
- 6 -
8.2. AC Characteristics
Parameter
Symbol
Pin
Condition
Min.
Typ.
Max.
Unit
Power supply rise time
(Note 4)
PSUP
VDD
Period of time that VDD changes
from 0.2V to Vdd.
50
ms
POR completion time
(Note 4)
PORT
Period of time after PSUP to
Power-down mode (Note 5)
100
µs
Power supply turn off
voltage (Note 4)
SDV
VDD
Turn off voltage to enable POR to
restart (Note 5)
0.2
V
Power supply turn on
interval (Note 4)
PSINT
VDD
Period of time that voltage lower
than SDV needed to be kept to
enable POR to restart (Note 5)
100
µs
Wait time before mode
setting
Twait
100
µs
(Note 4) Reference value for design.
(Note 5) When POR circuit detects the rise of VDD voltage, it resets internal circuits and initializes the
registers. After reset, AK09918 transits to Power-down mode.
8.3. Analog Circuit Characteristics
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
Measurement data output bit
DBIT
-
16
-
bit
Time for measurement
TSM
Single measurement mode
7.2
8.2
ms
Magnetic sensor sensitivity
BSE
Ta = 25 ˚C
0.1425
0.15
0.1575
µT/LSB
Magnetic sensor measurement range
(Note 6)
BRG
Ta = 25 ˚C
±4670
±4912
±5160
µT
Magnetic sensor initial offset
(Note 7)
BIO
Ta = 25 ˚C
-2000
+2000
LSB
(Note 6) Reference value for design
(Note 7) Value of measurement data register on shipment test without applying magnetic field on purpose.
0V
PSINT
PSUP
PORT
Power-down mode
SDV
VDD
Power-down mode