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LC717A10AR 반도체 회로 부품 판매점

Capacitance-Digital-Converter LSI



Sanyo Semicon Device 로고
Sanyo Semicon Device
LC717A10AR 데이터시트, 핀배열, 회로
Ordering number : ENA2161
CMOS LSI
LC717A10AR Capacitance-Digital-Converter LSI
for Electrostatic Capacitive Touch
Sensors
Overview
The LC717A10AR is a high-performance and low-cost capacitance-digital-converter LSI for electrostatic capacitive
touch sensor, especially focused on usability.
It has 16 channels capacitance-sensor input. This makes it ideal for use in the products that need many switches.
Since the calibration function and the judgment of ON/OFF are automatically performed in LSI internal, it can make
development time more short. A detection result (ON/OFF) for each input can be read out by the serial interface (I2C
compatible bus or SPI).
Also, measurement value of each input can be read out as 8-bit digital data. Moreover, gain and other parameters can
be adjusted using serial interface.
Features
Detection system: Differential capacitance detection (Mutual capacitance type)
Input capacitance resolution: Can detect capacitance changes in the femto Farad order
Measurement interval (16 differential inputs): 30ms (Typ) (at initial configuration),
6ms (Typ) (at minimum interval configuration)
External components for measurement: Not required
Interface: I2C * compatible bus or SPI selectable.
Current consumption: 570μA (Typ) (VDD = 2.8V), 1.3mA (Typ) (VDD = 5.5V)
Supply voltage: 2.6V to 5.5V
Detection operations: Switch
Packages: VCT28
* I2C Bus is a trademark of Philips Corporation.
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment. The products mentioned herein
shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life,
aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system,
safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives
in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any
guarantee thereof. If you should intend to use our products for new introduction or other application different
from current conditions on the usage of automotive device, communication device, office equipment, industrial
equipment etc. , please consult with us about usage condition (temperature, operation time etc.) prior to the
intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely
responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer's products or
equipment.
Ver1.0.1
D1912HKPC 20121129-S00004 No.A2161-1/11


LC717A10AR 데이터시트, 핀배열, 회로
LC717A10AR
Specifications
Absolute Maximum Ratings at Ta = +25°C
Parameter
Symbol
Supply voltage
Input voltage
Output voltage
Power dissipation
VDD
VIN
VOUT
Pd max
Ratings (VSS = 0V)
-0.3 to +6.5
-0.3 to VDD+0.3
-0.3 to VDD+0.3
160
Unit
V
V
V
mW
Storage temperature
Tstg
-55 to +125
*1) Apply to Cin0 to 15, Cref, CrefAdd, nRST, SCL, SDA, SA0, SA1, SCK, SI, nCS
*2) Apply to Cdrv, SDA, SO, INTOUT
*3) 4-layer glass epoxy board (40×50×0.8t mm)
°C
Remarks
*1
*2
Ta = +105°C,
Mounted on a substrate *3
Recommended Operating Conditions
Parameter
Symbol
Conditions
min typ max Unit Remarks
Operating supply voltage
Supply ripple + noise
VDD
Vpp
2.6 5.5 V
±20 mV
*1
Operating temperature
Topr
-40 25
*1) We recommend connecting large and small capacitance between VDD and VSS.
In this case, the small capacitance is equal to or more than 0.1μF, and layout nearby LSI.
105
°C
Electrical Characteristics at VSS = 0V, VDD = 2.6 to 5.5V, Ta = -40 to +105°C
* Unless otherwise specified, the Cdrv drive frequency is fCDRV = 143kHz.
* Not tested at low temperature before shipment.
Parameter
Symbol
Conditions
min typ
Capacitance detection resolution N
Output noise RMS
Input offset capacitance
adjustment range
Input offset capacitance
adjustment resolution
Cin offset drift
Cin detection sensitivity
Cin pin leak current
Cin allowable parasitic input
capacitance
Cdrv drive frequency
Cdrv pin leak current
nRST minimum pulse width
Power-on reset time
Power-on reset operation
condition: Hold time
Power-on reset operation
condition: Input voltage
Power-on reset operation
condition: Power supply rise rate
NRMS
CoffRANGE
CoffRESO
CinDRIFT
CinSENSE
ICin
CinSUB
fCDRV
ICDRV
tNRST
tPOR
tPOROP
VPOROP
tVDD
minimum gain setting
minimum gain setting
minimum gain setting
Cin = Hi-Z
Cin against VSS
Cdrv = Hi-Z
0V to VDD
0.04
±8.0
8
±25
100 143
±25
1
10
1
max
8
±1.0
Unit
bit
LSB
pF
Remarks
*1 *3
*1 *3
±8
0.12
±500
bit
LSB
LSB/fF
nA
30
186
±500
20
pF
kHz
nA
μs
ms
ms
*1
*2
*1 *3
*1
*1
*1
0.1 V
V/ms
*1
*1
Continued to the next page.
No.A2161-2/11




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