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PDF ( 数据手册 , 数据表 ) IQS904

零件编号 IQS904
描述 Single Channel Capacitive Sensor and Controller
制造商 Azoteq
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IQS904 数据手册, 描述, 功能
IQS904 Datasheet
IQ Switch® - ProxSense® Series
Single Channel Capacitive Sensor and Controller for Dimmer Applications
Unparalleled Features
Extensive feature set in a TSOT23-6 package
Extremely low current consumption
Automatic tuning for optimal operation in various environments & compensation against
sensitivity reducing objects
The IQS904 ProxSense® IC is a fully integrated single channel capacitive contact and proximity
sensor with built in controller for dimming applications. With market leading sensitivity and
automatic tuning of the sense antenna, the IQS904 provides an extremely cost effective minimalist
implementation requiring very few external components. The device is ready for use in a large
range of AC/DC dimming applications, while programming options allow flexible fine tuning in
specialized applications.
Main Features
Single Channel input device
IQS904A : AC applications
IQS904D : DC applications
ATI: Automatic tuning to optimum sensitivity
Supply Voltage 3V to 5.5V
Internal voltage regulator and reference capacitor
OTP options
Output Polarity (Active High or Active Low) for IQS904AC
Proximity & Touch Thresholds
FITD time(18s or 5s) for IQS904DC
Automatic drift compensation
Development and Programming tools available (USBProg)
Compact TSOT23-6 Package
Applications
DC/AC Lamp Dimming
Camping Lights
Flash Lights
Night Lights
Under Cabinet Lighting
Proximity detection that enables backlighting activation
(Patented)
Replacement for electromechanical switches
TA TSOT23-6
-40°C to 85°C
IQS904
Current Consumption: 200 µA







IQS904 pdf, 数据表
7 User Configurable Options
The IQS904 provides One Time
that can be used to program the OTP user
Programmable (OTP) user options (each
options for prototyping purposes. More details
option can be modified only once). The device regarding the configuration of the device with
is fully functional in the default (unconfigured) the USBProg program is explained by
state. OTP options are intended for specific application note: AZD007 – USBProg
applications.
Overviewwhich can be found on the Azoteq
The configuration of the device can be done website.
on packaged devices or in-circuit. In-circuit Alternate programming solutions of the
configuration may be limited by values of IQS904 also exist. For further enquiries
external components chosen.
regarding this matter please contact Azoteq at
7.1 Configuring of Devices
[email protected] or the local
distributor.
Azoteq offers a Configuration Tool (CTxxx)
and accompanying software (USBProg.exe)
Copyright © Azoteq (Pty) Ltd 2010.
All Rights Reserved.
IQS904 Datasheet
Revision 1.06
Page 8 of 23
December 2011







IQS904 equivalent, schematic
10 Electrical Characteristics
10.1 Absolute Maximum Specifications
Exceeding these maximum specifications may cause damage to the device.
Operating temperature
-40°C to 85°C
Supply Voltage (VDDHI – VSS)
5.5V
Maximum pin voltage (ZC/BACKLIGHT, load)
VDDHI + 0.5V
Pin voltage (Cx)
2.5V
Minimum pin voltage (VDDHI, VREG,ZC/BACKLIGHT,LOAD, Cx)
VSS - 0.5V
Minimum power-on slope
100V/s
HBM ESD protection (VDDHI, VREG, VSS, ZC/BACKLIGHT, Cx)
2Kv
10.2 General Characteristics (Measured at 25°C)
Standard IQS904 devices are rated for supply voltages between 2.95V and 5V. The low
voltage version of the IQS904 is rated for supply voltages between 2.0V and 5V. For supply
voltages below 2.95V the device is operating below the voltage required by the internal
regulator and some of the characteristics of the device may be different than those for the
Standard IQS904.
Table 10.1
IQS904 General Operating Conditions
DESCRIPTION
IC Conditions
PARAMETER MIN TYP MAX UNIT
Supply voltage
D
VDDHI
3 5.50 V
Internal regulator output
D 2.95 VDDHI 5.0 VREG
2.35 2.50 2.65 V
Internal regulator output
D 2.0 VDDHI 2.95 VREG
1.80 VDDHI VDDHI
V
Normal operating current
D 2.95 VDDHI 5.0 IIQS904 NP
200 µA
Table 10.2
Start-up and shut-down slope Characteristics
DESCRIPTION IC Conditions
PARAMETER MIN MAX UNIT
POR
D/S VDDHI Slope 100V/s
POR
1.45 1.70 V
BOD
D/S
BOD
1.30 1.40 V
Copyright © Azoteq (Pty) Ltd 2010.
All Rights Reserved.
IQS904 Datasheet
Revision 1.06
Page 16 of 23
December 2011










页数 24 页
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