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CPT112S-A02-GMR

Description
电容式触摸 按钮,滑块 20-QFN(3x3)
CategoryThe sensor    Sensor/transducer   
File Size2MB,42 Pages
ManufacturerSilicon Labs
Websitehttps://www.silabs.com
Environmental Compliance
Download Datasheet Parametric View All

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CPT112S-A02-GMR Overview

电容式触摸 按钮,滑块 20-QFN(3x3)

CPT112S-A02-GMR Parametric

Parameter NameAttribute value
category
MakerSilicon Labs
series-
Package卷带(TR)剪切带(CT)Digi-Reel® 得捷定制卷带
typebutton, slider
proximity detectionyes
Number of inputsUp to 12
LED driver channel-
interfaceI²C
resolution-
Voltage - Power supply1.8V ~ 3.6V
Current - power supply3.1mA
Operating temperature-40°C ~ 85°C
Installation typesurface mount type
Package/casing20-UFQFN Exposed Pad
Supplier device packaging20-QFN(3x3)
Basic product numberCPT112
Supporting up to 12 capacitive sensor inputs in packages as small as a 3 mm x 3 mm
QFN, the CPT112S is a highly-integrated device that interfaces via I2C to the host pro-
cessor to provide a simple solution for adding capacitive touch. The device also comes
with advanced features like moisture immunity, wake-on proximity, and buzzer feedback
for an enhanced user experience. No firmware development is needed, and all the ca-
pacitive touch sense parameters can be configured using a simple GUI-based configura-
tor. By eliminating the need for complex firmware development, the CPT112S device en-
ables rapid user interface designs with minimal development effort.
d
The CPT112S device is ideal for a wide range of capacitive touch applications including
the following:
de
• Home appliances
• Instrument / Control panels
• White goods
• Medical equipment
• Consumer electronics
• Lighting control
om
m
Input
Features
Capacitive Touch Sensing
Features
Mutually-
Exclusive Touch
Qualifier
en
Option for a
Multi-Button
Slider
ec
Proximity Wake
Input
Touch
Qualification
fo
rN
ew
I2C Output
The CPT112S device, part of the TouchXpress family, is designed
to quickly add capacitive touch via an I2C interface by eliminating
the firmware complexity and reducing the development time for ca-
pacitive sensing applications.
KEY FEATURES
• No firmware development required
• Simple GUI-based configurator
• 12 Capacitive Sensor inputs with
programmable sensitivity
• Configurable multi-button slider
• I2C interface to communicate to the host
• Lowest power capacitive sense solution
• Active — 200 µA
• Sleep — 1 µA
• Wake on proximity
• Superior noise immunity: SNR up to 270:1
• Moisture immunity
• Mutually-exclusive touch qualifier
• Button touch time-out to avoid false
touches
• Buzzer output for audible touch feedback
Configuration
Profile for each
Input
R
Baselining
Interrupt Pin
ot
Input Engine
with
12 Inputs
N
Low Power State
Machine
Touch Time-Out
Timer
Lowest power mode with feature operational:
Active
Optimized Active
Low Power Sleep
silabs.com
| Smart. Connected. Energy-friendly.
This information applies to a product under development. Its characteristics and specifications are subject to change without notice.
D
es
ig
ns
Output
Features
I2C Event Buffer
Optional Buzzer
Output
Preliminary Rev. 0.2
TouchXpress™ Family
CPT112S Data Sheet
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