3 Touch Key -- BS813A-1

3 Touch Key
BS813A-1
Characteristics
 Touch Key : BS813A-1
8 SOP
 Operating Voltage : 2.2V ~ 5.5V
 Low standby current
 Auto-calibration
 Reliable touch detections
 High noise rejection
 Standby and normal operating power modes
 Maximum Key on duration time detection
 Power supply voltage drop rejection function
 Level Hold, low active
 NMOS output with internal pull-high
 Provide parallel output
 Sensitivity adjustment using an external capacitor
 Minimal number of external components
Application Areas
Consumer Products, Home Appliances, Industrial Control, Health Care Products, etc.
Application Circuit
JP1
GND
VDD
OUT1
OUT2
OUT3
5
4
3
2
1
VDD
KEY1
(0-25)PF
KEY2
U1
CT1
CT2
(0-25)PF
KEY3
CT3
1
2
3
4
(0-25)PF
KEY1
VDD
KEY2
VSS
KEY3
OUT1
OUT3
OUT2
8
VDD
7
GND
5
OUT1
5
OUT2
C1
104
R1
R2
BAT1
CR2032
VDD
1K
LED1
1K
LED2
1K
LED3
BS813A-1 8SOP
OUT3
R3
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