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What is IS31SE5100?

This electronic component, produced by the manufacturer "ISSI", performs the same function as "8-CH CAPACITIVE TOUCH SENSOR".


IS31SE5100 Datasheet PDF - ISSI

Part Number IS31SE5100
Description 8-CH CAPACITIVE TOUCH SENSOR
Manufacturers ISSI 
Logo ISSI Logo 


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IS31SE5100
8-CH CAPACITIVE TOUCH SENSOR WITH AUTO CALIBRATION
March 2013
GENERAL DESCRIPTION
The IS31SE5100 is an ultra low power, fully integrated
8-channel solution for capacitive touch-buttons
applications. The chip allows electrodes to project
sense fields through any dielectric such as glass or
plastic. On-chip calibration logic continuously monitors
the environment and automatically adjusts on-and-off
threshold levels to prevent false sensor activation.
The IS31SE5100 supports the 400kHz I²C serial bus
data protocol and includes a field programmable slave
address. An INTB is generated when a button event
(touched or released) occurs, triggered and cleared
condition could be configured by setting the interrupt
register.
IS31SE5100 is available in QFN-24 (4mm × 4mm) and
SSOP-24 packages. It operates from 2.7V to 5.5V over
the temperature range of -40°C to +85°C.
FEATURES
Complete eight sensors capacitive touch
controller for buttons
Auto offset compensation
Sensitivity adjustable by external capacitor or
internal register
Extremely low power optimized for portable
application
Interrupt output
400kHz fast-mode I²C interface
8kV ESD HBM
Operating temperature TA = 40°C ~ +85°C
QFN-24 (4mm × 4mm) and SSOP-24 packages
APPLICATIONS
Mobile phones
GPS
PDAs
TYPICAL APPLICATION CIRCUIT
Figure 1 Typical Application Circuit
Note 1: The IC should be placed far away from the mobile antenna in order to prevent the EMI.
Note 2: The RS resistor should place as close as possible to reduce EMI.
Integrated Silicon Solution, Inc. – www.issi.com
Rev. C, 03/18/2013
1

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IS31SE5100 equivalent
IS31SE5100
ABSOLUTE MAXIMUM RATINGS
Supply voltage, VCC
Voltage at any input pin
Maximum junction temperature, TJMAX
Storage temperature range, TSTG
Operating temperature range, TA
-0.3V ~ +6.0V
-0.3V ~ VCC+0.3V
150°C
-65°C ~ +150°C
40°C ~ +85°C
Note:
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only and
functional operation of the device at these or any other condition beyond those indicated in the operational sections of the specifications is not
implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
TA = 25°C, VCC = 2.7V ~ 5.5V, unless otherwise noted. Typical value are TA = 25°C, VCC = 3.6V.
Symbol
Parameter
Condition
Min. Typ. Max.
VCC Supply voltage
ICC Quiescent power supply current VSDB = VCC = 3.6V
ISD Shutdown current
VSDB = 0V, VCC = 5.5V
VHR Current Sink headroom voltage
IOUT = 20mA, VCC = 3.6V
CS Minimum detectable capacitance CS = 5pF (Note 1)
2.7 5.5
11 175 345
0 0.5 2.3
218 312 412
0.2
Logic Electrical Characteristics
VIL Logic “0” input voltage
VIH Logic “1” input voltage
IIL Logic “0” input current
IIH Logic “1” input current
VCC = 2.7V
VCC = 5.5V
VINPUT = 0V(Note 1)
VINPUT = VCC(Note 1)
0.4
1.4
5
5
Unit
V
μA
μA
mV
pF
V
V
nA
nA
DIGITAL INPUT SWITCHING CHARACTERISTICS (Note 1)
Symbol
Parameter
Condition Min.
Typ.
fSCL Serial-Clock frequency
tBUF
Bus free time between a STOP and a
START condition
1.3
tHD, STA
tSU, STA
tSU, STO
tHD, DAT
tSU, DAT
tLOW
tHIGH
tR
Hold time (repeated) START condition
Repeated START condition setup time
STOP condition setup time
Data hold time
Data setup time
SCL clock low period
SCL clock high period
Rise time of both SDA and SCL signals,
receiving
(Note 2)
0.6
0.6
0.6
100
1.3
0.7
20+0.1Cb
tF
Fall time of both SDA and SCL signals,
receiving
(Note 2)
20+0.1Cb
Note 1: Guaranteed by design.
Note 2: Cb = total capacitance of one bus line in pF. ISINK 6mA. tR and tF measured between 0.3 × VCC and 0.7 × VCC.
Max.
400
0.9
300
300
Unit
kHz
μs
μs
μs
μs
μs
ns
μs
μs
ns
ns
Integrated Silicon Solution, Inc. – www.issi.com
Rev. C, 03/18/2013
5


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