B6TS-04LT Omron, B6TS-04LT Datasheet - Page 19

• Manufacturer Part Number: B6TS-04LT
• Description: Capacitance Touch Sensors Sensing IC
• Manufacturer: Omron
• Series: -r
• Type: Capacitiver

Specifications of B6TS-04LT

• Sensitivity: -
• Response Time: -
• Interface: SPI
• Channel Inputs: 4 Key
• Voltage - Supply: 3 V ~ 5 V
• Actuator Type: -
• Package / Case: 20-LSSOP (0.173", 4.40mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8.
7.4
8.1
8.2
8.3
Electrical characteristics
Designation
V
V
V
P
T
T
Designation
V
V
V
I
I
Designation
V
V
I
I
I
OH
OL
IH
IL
CC
d
opr
stg
dd
I
O
dd
IH
IL
OH
OL
After REFx has been calibrated, the chip starts the teaching measurement count ((TCAL)×32 times). During
this period, touch each electrode three times or more. The order for touching each of the electrodes is not defined.
After the specified number of teaching measurements have finished, the CHG pin changes to high.
However, if the number of touches (the number of times the chip recognizes a touch) reaches 32, the chip
finishes measuring and changes the CHG pin to high, even if the teaching measurement count has not been
reached.
When touching the electrodes, do not touch two or more electrodes at the same time. If you do, teaching cannot
be performed correctly. If more than one electrode is touched simultaneously in error, touch each of the
electrodes touched simultaneously again. Touch all of the electrodes three times or more within the teaching
measurement time.
After the touch measurements have finished, the chip updates the quantity of variation judged as on (THRx), and
hysteresis (HYSx) according to the calculation formula described in “7.2.4 On-judgment ratio and hysteresis
ratio” (updates the values stored in the built-in ROM). After the values are updated, the CHG pin changes to low
and teaching finishes.
Checking the result of teaching
When teaching finishes correctly, bit14 (TER bit) of the data, which can be read with the MODE command,
changes to “1”. If teaching is not completed normally because the specified number of touches are not executed
within the teaching measurement time or for some other reason, the TER bit changes to “0” and the quantity of
variation judged as on (THRx) and hysteresis (HYSx) are not updated. (In this event, only the reference value
(REFx) is updated.)
To reset the TER bit, set it to “1” using the MODE command, or perform teaching again (and finish the teaching
operation normally).
Absolute maximum ratings
Recommended operating conditions
Electrical characteristics (1) [Vdd=5V]
Note 1: Unless otherwise specified, Vdd = 3.0-5.5V, Topr = -20-85°C
Note 1: Unless otherwise specified, Vdd = 4.2-5.5V, Topr = -20-85°C
Item
Supply voltage
Input voltage
Output voltage
Power dissipation
Ambient operating temperature
Storage temperature
Item
Supply voltage
High input voltage
Low input voltage
High output current
Low output current
Item
High output voltage
Low output voltage
High input current
Low input current
Supply current
Condition
I
I
I
I
V
V
Normal measurement
mode
During sleep
OH
OH
OL
OH
I
I
=5V
=0V
=5mA
=-5mA
=-200µA
=200µA
Condition
T
Condition
opr
=25°C
Minimum
V
V
Minimum
dd
dd
0.8V
3.0
-2.0
-0.3
0
dd
Rated value
Standard
Rated value
-0.3 – V
-0.3 – V
Standard
Rated value
0.4
-0.3 – 6.5
-65 – 150
-20 – 85
5
300
dd
dd
+0.3
+0.3
Maximum
Maximum
0.45
V
V
2.0
0.2V
-5
5
V
dd
dd
5.5
-5
5
dd
dd
Unit
V
V
V
V
µA
µA
mA
mA
Unit
V
V
V
mW
°C
°C
Unit
V
V
V
mA
mA