AK8996 Datasheet, PDF (15/74 Pages) Asahi Kasei Microsystems – Pressure Sensor Interface IC

[AK8996/W]
9) Pressure Detector
Unless otherwise specified, VDD = 2.2 to 5.5V, Temperature = -40 to 105ºC, register default
Item
Symbol
Conditions
Min.
Typ.
Max. Units Comments
Pressure
Vdeto5+ EINT1[1:0]=01
0.5*VDD
0.95*VDD V
detection
EINT2[0]=0
threshold
VDD=5V±5%
External input Vdeto3+ EINT1[1:0]=01
range
EINT2[0]=0
0.5*VDD
0.90*VDD
EVD[0]=1
VDD=2.2 - 3.6V
Pressure
Vdeti Unadjusted
0.72*VDD 0.74*VDD 0.76*VDD V
detection
AM[3:0]:5h DET out
threshold
Internal set
EINT1[1:0]=01
EINT2[0]=1
value
Vdet5+ With respect to Vdeti
0.95*VDD
V
Max: EPT[3:0]=7h
Pressure
detection
threshold
Internal set
value
Adjust. width
Vdet3+
VDD=V±5%
EINT1[1:0]=01
EINT2[0]=0
EVD[0]=1
EPT[3:0]=6,7h
prohibited
VDD=2.2 - 3.6V
0.89*VDD
Vdet- With respect to Vdeti
0.50*VDD
V
Min: EPT[3:0]=8h
Adjust. step
Vdstp
0.03*VDD
V
Hysteresis
voltage
Vhysi Unadjusted
AM[3:0]:7h DET out
0.008
*VDD
0.020
*VDD
0.032 V
*VDD
EINT1[1:0]=01
Hysteresis
Vhys+ With respect to Vhysi
0.0
V
voltage
Max: EHYS[2:0]=0h
Adjust. width
Vhys- With respect to Vhysi
-0.0175
V
Min: EHYS[2:0]=7h
*VDD
Adjust. step
Vhstp
-0.0025
V
*VDD
Pressure
Tdetr EINT1[1:0]=01
450
600 µsec
detection time
Pressure
Tdetf EINT1[1:0]=01
450
600 µsec
non-detection
time
Pressure
Tasdis+ EAS[2:0]=7h
12.5
msec
detector
Disable time
ESF[1:0]=3h
EINT1[1:0]=01
Adjust. width Tasdis- EAS[2:0]=0h
0.1
msec
ESF[1:0]=3h
EINT1[1:0]=01
PTH
Vhys
VOUT
MS1055-E-02
DET
0.5*VDD
Tdetr
15
0.5*VDD
Tdetf
2011/12