QST108 Datasheet, PDF (33/38 Pages) STMicroelectronics – Capacitive touch sensor device 8 keys with individual key state outputs or I2C interface

QST108
Electrical characteristics
Figure 14. Typical V_DD-V_OH vs. I_load at V_DD = 2.4 V Figure 15. Typical V_DD-V_OH vs. V_DD at I_load = 2 mA
VDD-VOH vs Iload @ VDD = 2.4 V HS Pins
800
-40°C
700
25°C
600
85°C
125°C
500
400
300
200
100
0
2
4
Iload[mA]
Figure 16. Typical V_DD-V_OH vs. I_load at V_DD = 3 V
VDD-VOH vs VDD @Iload = 2 mA HS Pins
800
-40°C
700
25°C
600
85°C
500
125°C
400
300
200
100
0
2.4 2.8 3.2 3.6
4 _{4.4 4.8 5.2 5.6}
VDD[V]
Figure 17. Typical V_DD-V_OH vs. V_DD at I_load = 4 mA
1800
1600
1400
1200
1000
800
600
400
200
0
VDD-VOH vs Iload @ VDD = 3 V HS Pins
-40°C
25°C
85°C
125°C
0
2
4
6
Iload[mA]
Figure 18. Typical V_DD-V_OH vs. I_load at V_DD = 5 V
V_DD-V_OH vs V_DD @I_load = 4 mA HS Pins
1800
1600
1400
1200
1000
800
-40°C
25°C
85°C
125°C
600
400
200
0
2.6
3 _{3.4 3.8 4.2 4.6}
5 _5.4
VDD [V]
V_DD-V_OH vs I_load @ V_DD = 5 V HS Pins
4500
4000
3500
3000
-40°C
25°C
85°C
125°C
2500
2000
1500
1000
500
0
0
2
4
6
8
I_load[mA]
10 12 14
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