AT42QT1012-TSHR Atmel, AT42QT1012-TSHR Datasheet - Page 16

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AT42QT1012-TSHR

Manufacturer Part Number
AT42QT1012-TSHR
Description
IC TOUCH SENSOR 1KEY SOT23-6
Manufacturer
Atmel
Series
QTouch™r
Type
Capacitiver

Specifications of AT42QT1012-TSHR

Touch Panel Interface
1, 2-Wire
Number Of Inputs/keys
1 Key
Resolution (bits)
9, 14 b
Data Interface
Serial
Voltage Reference
Internal
Voltage - Supply
1.8 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-23-6
Output Type
Logic
Interface
Digital
Input Type
Logic
Supply Voltage
1.8 V to 5.5 V
Dimensions
2.9 mm L x 1.6 mm W x 1.45 mm H
Output Voltage
0.6 V to 0.7 V
Temperature Range
- 40 C to + 85 C
Termination Style
SMD/SMT
Supply Current
31.5µA
Supply Voltage Range
1.8V To 5.5V
Sensor Case Style
SOT-23
No. Of Pins
6
Operating Temperature Range
-40°C To +85°C
Svhc
No SVHC (15-Dec-2010)
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Supply
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
AT42QT1012-TSHRTR

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AT42QT1012-TSHR
Manufacturer:
MARVELL
Quantity:
224
16
AT42QT1012
Example using a chart to calculate Rt and Ct
Requirements:
Figure 3-10. Auto-off Delay, Active Low Output
• Active low output (Vop connected to VSS)
• Auto-off delay 25 minutes
• VDD = 4V
1. Calculate Auto-off delay in seconds 25 x 60 = 1500.
2. Find
3. This shows the following suitable Ct / Rt combinations:
4000
3500
3000
2500
2000
1500
1000
3500
3000
2500
2000
1500
1000
500
500
0
0
– 100 nF / 20 k
– 47 nF / 40 k
– 22 nF / 90 k
– 10 nF / 190 k
Note: the Auto-off delay times shown are nominal and will vary from chip to chip and with
capacitor and resistor tolerance.
0
0
Ct = 100nF
Ct = 100nF
1500
------------ -
50
50
1
Vm = Vss (delay multiplier = x1)
= 1500 on the 4V chart in
Timing Resistor Rt (K ohms)
Timing Resistor Rt (K ohms)
5V Active Low
3V Active Low
100
100
Ct = 47nF
Ct = 47nF
150
150
200
200
Ct = 22nF
Ct = 10nF
Ct = 22nF
Ct = 10nF
Figure
250
250
4000
3500
3000
2500
2000
1500
1000
3500
3000
2500
2000
1500
1000
3-10.
500
500
0
0
0
0
Ct = 100nF
Ct = 100nF
50
50
Ct = 47nF
Timing Resistor Rt (K ohms)
Timing Resistor Rt (K ohms)
4V Active Low
2V Active Low
100
100
Ct = 47nF
150
150
9543D–AT42–08/10
200
200
Ct = 22nF
Ct = 22nF
Ct = 10nF
Ct = 10nF
250
250

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