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PDF CAP1166 Data sheet ( Hoja de datos )
| Número de pieza | CAP1166 | |
| Descripción | 6 Channel Capacitive Touch Sensor | |
| Fabricantes | Microchip | |
| Logotipo |  |
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CAP1166
6 Channel Capacitive Touch Sensor with 6 LED Drivers
General Description
The CAP1166, which incorporates RightTouch® tech-
nology, is a multiple channel Capacitive Touch sensor
with multiple power LED drivers. It contains six (6) indi-
vidual capacitive touch sensor inputs with programma-
ble sensitivity for use in touch sensor applications.
Each sensor input automatically recalibrates to com-
pensate for gradual environmental changes.
The CAP1166 also contains six (6) LED drivers that
offer full-on / off, variable rate blinking, dimness con-
trols, and breathing. Each of the LED drivers may be
linked to one of the sensor inputs to be actuated when
a touch is detected. As well, each LED driver may be
individually controlled via a host controller.
The CAP1166 includes Multiple Pattern Touch recogni-
tion that allows the user to select a specific set of but-
tons to be touched simultaneously. If this pattern is
detected, then a status bit is set and an interrupt gen-
erated.
Additionally, the CAP1166 includes circuitry and sup-
port for enhanced sensor proximity detection.
The CAP1166 offers multiple power states operating at
low quiescent currents. In the Standby state of opera-
tion, one or more capacitive touch sensor inputs are
active and all LEDs may be used. If a touch is detected,
it will wake the system using the WAKE/SPI_MOSI pin.
Deep Sleep is the lowest power state available, draw-
ing 5uA (typical) of current. In this state, no sensor
inputs are active. Driving the WAKE/SPI_MOSI pin or
communications will wake the device.
Applications
• Desktop and Notebook PCs
• LCD Monitors
• Consumer Electronics
• Appliances
Features
• Six (6) Capacitive Touch Sensor Inputs
- Programmable sensitivity
- Automatic recalibration
- Individual thresholds for each button
• Proximity Detection
• Multiple Button Pattern Detection
• Calibrates for Parasitic Capacitance
• Analog Filtering for System Noise Sources
• Press and Hold feature for Volume-like Applica-
tions
• Multiple Communication Interfaces
- SMBus / I2C compliant interface
- SPI communications
- Pin selectable communications protocol and
multiple slave addresses (SMBus / I2C only)
• Low Power Operation
- 5uA quiescent current in Deep Sleep
- 50uA quiescent current in Standby (1 sensor
input monitored)
- Samples one or more channels in Standby
• Six (6) LED Driver Outputs
- Open Drain or Push-Pull
- Programmable blink, breathe, and dimness
controls
- Can be linked to Capacitive Touch Sensor
inputs
• Dedicated Wake output flags touches in low
power state
• System RESET pin
• Available in 20-pin 4mm x 4mm QFN or 24-pin
SSOP RoHS compliant package
2015 Microchip Technology Inc.
DS00001621B-page 1
1 page  
CAP1166
2.0 PIN DESCRIPTION
FIGURE 2-1:
CAP1166 Pin Diagram (20-Pin QFN)
SPI_CS# 1
WAKE / SPI_MOSI
SMDATA / BC_DATA / SPI_MSIO /
SPI_MISO
SMCLK / BC_CLK / SPI_CLK
2
3
4
LED1 5
CAP1166
20 pin QFN
15 CS4
14 CS5
13 CS6
12 ADDR_COMM
11 ALERT# / BC_IRQ#
GND
DS00001621B-page 5
2015 Microchip Technology Inc.
5 Page 
CAP1166
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
Supply Voltage
Supply Current
Maximum Base
Capacitance
Minimum Detectable
Capacitive Shift
Recommended Cap
Shift
Power Supply Rejec-
tion
RESET Pin Delay
Time to communica-
tions ready
Time to first conver-
sion ready
Duty Cycle
Drive Frequency
Sinking Current
Sourcing Current
Leakage Current
Output Low Voltage
Output High Voltage
VDD
ISTBY
ISTBY
IDSLEEP
IDD
CBASE
ΔCTOUCH
ΔCTOUCH
PSR
tRST_DLY
tCOMM_DLY
tCONV_DLY
DUTYLED
fLED
ISINK
ISOURCE
ILEAK
VOL
VOH
DC Power
3.0 3.3 3.6 V
120 170 uA
50 uA
5 15 uA
500 600 uA
Capacitive Touch Sensor Inputs
Standby state active
1 sensor input monitored
No LEDs active
Default conditions (8 avg, 70ms
cycle time)
Standby state active
1 sensor input monitored
No LEDs active
1 avg, 140ms cycle time,
Deep Sleep state active
LEDs at 100% or 0% Duty Cycle
No communications
TA < 40°C
3.135 < VDD < 3.465V
Capacitive Sensing Active
No LEDs active
50 pF Pad untouched
Pad touched - default conditions (1
20 fF avg, 35ms cycle time, 1x sensitiv-
ity)
0.1
2 pF
Pad touched - Not tested
Untouched Current Counts
±3
±10
counts /
V
Base Capacitance 5pF - 50pF
Maximum sensitivity
Negative Delta Counts disabled
All other parameters default
Timing
10 ms
15 ms
170 200
LED Drivers
0 100
2
24
24
±5
VDD - 0.4
I/O Pins
0.4
ms
% Programmable
kHz
mA VOL = 0.4
mA VOH = VDD - 0.4
powered or unpowered
uA TA < 85°C
pull-up voltage < 3.6V if unpowered
V ISINK_IO = 8mA
V ISOURCE_IO = 8mA
DS00001621B-page 11
2015 Microchip Technology Inc.
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet CAP1166.PDF ] | |
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