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  Microchip Technology Semiconductor Electronic Components Datasheet  

CAP1133 Datasheet

3 Channel Capacitive Touch Sensor

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CAP1133
3 Channel Capacitive Touch Sensor with 3 LED Drivers
General Description
The CAP1133, which incorporates RightTouch® tech-
nology, is a multiple channel Capacitive Touch sensor
with multiple power LED drivers. It contains three (3)
individual capacitive touch sensor inputs with program-
mable sensitivity for use in touch sensor applications.
Each sensor input automatically recalibrates to com-
pensate for gradual environmental changes.
The CAP1133 also contains three (3) 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 CAP1133 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 CAP1133 includes circuitry and sup-
port for enhanced sensor proximity detection.
The CAP1133 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.
Deep Sleep is the lowest power state available, draw-
ing 5uA (typical) of current. In this state, no sensor
inputs are active. Communications will wake the
device.
Applications
• Desktop and Notebook PCs
• LCD Monitors
• Consumer Electronics
• Appliances
Features
• Three (3) 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
• SMBus / I2C Compliant Communication Interface
• 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
• Three (3) LED Driver Outputs
- Open Drain or Push-Pull
- Programmable blink, breathe, and dimness
controls
- Can be linked to Capacitive Touch Sensor
inputs
• Available in 10-pin 3mm x 3mm RoHS compliant
DFN package
2015 Microchip Technology Inc.
DS00001625B-page 1


  Microchip Technology Semiconductor Electronic Components Datasheet  

CAP1133 Datasheet

3 Channel Capacitive Touch Sensor

No Preview Available !

CAP1133
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Errata
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DS00001625B-page 2
2015 Microchip Technology Inc.


Part Number CAP1133
Description 3 Channel Capacitive Touch Sensor
Maker Microchip
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