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CAP1188 Datasheet(PDF) 10 Page - Microchip Technology

Part # CAP1188
Description  8 Channel Capacitive Touch Sensor with 8 LED Drivers
PDF  79 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

CAP1188 Datasheet(HTML) 10 Page - Microchip Technology

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CAP1188
DS00001620C-page 10
 2015 Microchip Technology Inc.
TABLE 3-2:
ELECTRICAL SPECIFICATIONS
VDD = 3V to 3.6V, TA = 0°C to 85°C, all typical values at TA = 27°C unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit
Conditions
DC Power
Supply Voltage
VDD
3.0
3.3
3.6
V
Supply Current
ISTBY
120
170
uA
Standby state active
1 sensor input monitored
No LEDs active
Default conditions (8 avg, 70ms
cycle time)
ISTBY
50
uA
Standby state active
1 sensor input monitored
No LEDs active
1 avg, 140ms cycle time,
IDSLEEP
515
uA
Deep Sleep state active
LEDs at 100% or 0% Duty Cycle
No communications
TA < 40°C
3.135 < VDD < 3.465V
IDD
500
600
uA
Capacitive Sensing Active
No LEDs active
Capacitive Touch Sensor Inputs
Maximum Base
Capacitance
CBASE
50
pF
Pad untouched
Minimum Detectable
Capacitive Shift
C
TOUCH
20
fF
Pad touched - default conditions (1
avg, 35ms cycle time, 1x sensitiv-
ity)
Recommended Cap
Shift
C
TOUCH
0.1
2
pF
Pad touched - Not tested
Power Supply Rejec-
tion
PSR
±3
±10
counts /
V
Untouched Current Counts
Base Capacitance 5pF - 50pF
Maximum sensitivity
Negative Delta Counts disabled
All other parameters default
Timing
RESET Pin Delay
tRST_DLY
10
ms
Time to communica-
tions ready
tCOMM_DLY
15
ms
Time to first conver-
sion ready
tCONV_DLY
170
200
ms
LED Drivers
Duty Cycle
DUTYLED
0
100
%
Programmable
Drive Frequency
fLED
2
kHz
Sinking Current
ISINK
24
mA
VOL = 0.4
Sourcing Current
ISOURCE
24
mA
VOH = VDD - 0.4
Leakage Current
ILEAK
±5
uA
powered or unpowered
TA < 85°C
pull-up voltage < 3.6V if unpowered
I/O Pins
Output Low Voltage
VOL
0.4
V
ISINK_IO = 8mA
Output High Voltage
VOH
VDD - 0.4
V
ISOURCE_IO = 8mA



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