AK8998 Datasheet, PDF (15/59 Pages) Asahi Kasei Microsystems – Preliminary

[AK8998/W/D]
8) Pressure Detector 1 & 2
VDD=3, 3.3, 5V±5%, Ta=-20 to 85ºC, register default, unless otherwise noted
Item
Symbol
Conditions
Min.
Typ.
Max. units Comments
Pressure
detection
threshold
Vdete EINE1[0]=0h
EINE2[0]=1h
EPTH1[0]=1h
0.1*VDD
0.9*VDD V
External input
range
Pressure
Vdet EPT1, 2[4:0]=00h
0.500 0.500 0.500 V
detection
*VDD *VDD *VDD
threshold
-0.05
+0.05
Internal set
value
Pressure
Vdet+ Max: EPT1, 2[4:0]=10h
0.900
V
detection
*VDD
threshold
Vdet- Min: EPT1, 2[4:0]=0Fh
0.125
V
Internal set
*VDD
value
Adjust. width
Adjust. step Vdstp
0.025
V
*VDD
Hysteresis
voltage
Adjust. width
Vhys5+ Max:
VDD=5V±5%
EHYS1, 2[1:0]=01h
0.060 0.060 0.060 V
*VDD *VDD *VDD
-0.055
+0.055
Vhys5- Min:
VDD=5V±5%
EHYS1, 2[1:0]=10h
0.030 0.030 0.030 V
*VDD *VDD *VDD
-0.03
+0.03
Vhys3+ Max:
VDD=3, 3.3V±5%
EHYS1, 2[1:0]=01h
0.060 0.060 0.060 V
*VDD *VDD *VDD
-0.035
+0.035
Vhys3- Min:
VDD=3, 3.3V±5%
EHYS1, 2[1:0]=10h
0.030 0.030 0.030 V
*VDD *VDD *VDD
-0.02
+0.02
Adjust. step Vhysst
0.010
V
*VDD
Pressure
Tdetr ESCF[1:0]=0h
150 µsec Note)
detection time
Pressure
Tdetf ESCF[1:0]=0h
150 µsec Note)
non-detection
time
Note) Design reference value; no production test performed.
PTH
VOUT
DET1, 2
0.5*VDD
Tdetr
Vhys
0.5*VDD
Tdetf
MSxxxxx-E-00
- 15 -
2012/11