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IQS156 の電気的特性と機能

IQS156のメーカーはAzoteqです、この部品の機能は「Minimalist Capacitive Sensor」です。


製品の詳細 ( Datasheet PDF )

部品番号 IQS156
部品説明 Minimalist Capacitive Sensor
メーカ Azoteq
ロゴ Azoteq ロゴ 




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IQS156 Datasheet, IQS156 PDF,ピン配置, 機能
IQ Switch®
ProxSense® Series
IQS156 Datasheet
IQ Switch® - ProxSense® Series
Minimalist Capacitive Sensor with Compensation for Sensitivity Reducing Objects
Unparalleled Features
Sub 6uA current consumption
Automatic tuning for optimal operation in various environments
The IQS156 ProxSense® IC is a fully integrated six channel capacitive contact and proximity
sensor with market leading sensitivity and automatic tuning to the sense electrodes. The IQS156
provides a minimalist implementation requiring as few as 2 external components. The device is
ready for use in a large range of applications while programming options allow customisation for
specialized applications.
Main Features
6 Channel input device
I2C data output
ATI: Automatic tuning to optimum sensitivity
Supply Voltage 3V to 5.5V
8 Power Modes (6µA min)
Internal voltage regulator and reference capacitor
Large proximity detection range
Automatic drift compensation
IQS143 MSOP10
Representations only, not
actual markings
Development and Programming tools available (VisualProxSense and USBProg)
Small outline MSOP10
Applications
White goods and appliances
Office equipment, toys, sanitary ware
Flame proof, hazardous environment Human Interface Devices
Proximity detection that enables backlighting activation (Azoteq Patented)
Wake-up from standby applications
Replacement for electromechanical switches
GUI trigger on proximity detection.
Available options
TA MSOP-10
-40°C to 85°C
IQS156

1 Page





IQS156 pdf, ピン配列
IQ Switch®
ProxSense® Series
Power on reset (POR) detection.
Brown out detection (BOD).
3 Digital Functionality
The digital processing functionality is
responsible for:
Management of BOD and WDT events.
Initiation of conversions at the selected
rate.
Processing of CS and execution of
algorithms.
Detailed Description
Monitoring and automatic execution of the
ATI algorithm.
Signal processing and digital filtering.
Detection of PROX and TOUCH events.
Managing outputs of the device.
Managing serial communications.
4 Reference Design
Figure 4.1 Reference Design.
Use C3 and C4 for added RF immunity.
Place C1-C4 as close as possible to IC, connected to good GND.
R6 and R7 used as pull up resistors for I2C protocol.
Figure 4.2 Output in active low.
5 High Sensitivity
proximities at distances that cannot be
equalled by most other products. When the
Through patented design and advanced signal
processing, the device is able to provide
extremely high sensitivity to detect Proximity.
This enables designs that can detect
device is used in environments where noise or
ground effects exist that lower the sensitivity,
a reduced proximity threshold is proposed to
ensure reliable functioning of the sensor. The
high sensitivity allows the device to sense
Copyright © Azoteq (Pty) Ltd 2012.
All Rights Reserved.
IQS156 Datasheet
Revision 1.7
Page 3 of 24
October 2012


3Pages


IQS156 電子部品, 半導体
IQ Switch®
ProxSense® Series
Send
Start
Slave Address (7 Bit)
__
R/W
Send Control
Byte
No
MSB
LSB
Figure 9.3 Control Byte Format.
9.4 Sub addressing
Did Device
Acknowledge?
Each slave device on the serial bus requires a
unique 7 bit device identifier. When the control
byte is sent by the master the device will be
Yes able to determine if it is the intended recipient
Continue
of a data transaction. The IQS156 address
with I2C
Operation
selection is controlled with OTP fuse selection.
Four addresses are available, and can be
programmed by USBProg.
Figure 9.2 ACK Polling.
Table 9.1 I2C Sub Addresses.
9.3 Control Byte Format
A control byte is the first byte received
following the start condition from the master
SA1
SA0 Address
(7-bit)
device. The control byte consists of a 7 bit
0 0 0x40
device address and the Read/ Write indicator
bit (refer to Figure 9.3).
0 1 0x41
1 0 0x42
1 1 0x43
Address Size(Bytes)
9.5 Memory Mapping
00h-0Fh
16
Device Information
R/W
R
10h-30h
32
Device Specific Data
R/W
R
Copyright © Azoteq (Pty) Ltd 2012.
All Rights Reserved.
IQS156 Datasheet
Revision 1.7
Page 6 of 24
October 2012

6 Page



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部品番号部品説明メーカ
IQS156

Minimalist Capacitive Sensor

Azoteq
Azoteq


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