QST108 STMicroelectronics, QST108 Datasheet - Page 36

• Manufacturer Part Number: QST108
• Description: Capacitive Touch Sensor Device 8 Keys With Individual Key State Outputs Or I2c Interface
• Manufacturer: STMicroelectronics

Electrical characteristics
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Figure 9.
Figure 11.
Figure 13.
1200
1000
1600
1400
1200
1000
900
800
700
600
500
400
300
200
100
800
600
400
200
800
600
400
200
0
0
0
0
0
0
Typical V
Typical V
Typical V
-40°C
25°C
85°C
125°C
-40°C
25°C
85°C
125°C
-40°C
25°C
85°C
125°C
2
2
2
4
V
4
V
V
OL
OL
OL
vs I
4
vs I
vs I
6
6
load
load
OL
OL
OL
load
@ V
6
@ V
@ V
8
8
at V
at V
at V
I
DD
I
I
load
load
DD
load
DD
= 2.4 V HS pins
10
= 3 V HS pins
10
= 5 V HS pins
[mA]
8
[mA]
[mA]
DD
DD
DD
12
12
10
= 2.4 V
= 3 V
= 5 V
14
14
12
16
16
14
18
18
16
20
20
Figure 10.
Figure 12.
Figure 14.
540
490
440
390
340
290
240
190
140
120
110
100
1040
940
840
740
640
540
440
340
240
140
90
80
70
60
50
40
2.4 2.6 2.8 3 3.2 3.4 3.6 3.8 4 4.2 4.4 4.6 4.8 5 5.2 5.4 5.6
2.4 2.6 2.8 3 3.2 3.4 3.6 3.8
2.4 2.6 2.8 3 3.2 3.4 3.6 3.8 4 4.2 4.4 4.6 4.8 5 5.2 5.4 5.6
Typical V
Typical V
Typical V
V
V
OL
OL
V
vs V
OL
vs V
vs V
OL
OL
OL
DD
DD
DD
@I
@I
@I
load
load
V
V
vs V
vs V
vs V
load
V
DD
DD
DD
4 4.2 4.4 4.6 4.8 5 5.2 5.4 5.6
=2 mA HS Pins
= 12 mA HS Pins
= 8 mA HS Pins
[V]
[V]
[V]
DD
DD
DD
at I
at I
at I
load
load
load
-40°C
25°C
85°C
125°C
-40°C
25°C
85°C
125°C
-40°C
25°C
85°C
125°C
= 2 mA
= 8 mA
= 12 mA
QST108