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TSC2046E-Q1 데이터시트(PDF) 4 Page - Texas Instruments

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부품명 TSC2046E-Q1
상세설명  LOW-VOLTAGE I/O TOUCH SCREEN CONTROLLER
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제조업체  TI1 [Texas Instruments]
홈페이지  http://www.ti.com
Logo TI1 - Texas Instruments

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TSC2046E-Q1
SBAS510 – JUNE 2010
www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
TA = -40°C to 125°C, +VCC = 2.7V, VREF = 2.5V internal voltage, fSAMPLE = 125kHz, fCLK = 16 × fSAMPLE = 2MHz, 12-bit mode,
digital inputs = GND or IOVDD, +VCC ≥ IOVDD (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Reference Output
Internal reference voltage
2.45
2.50
2.55
V
ppm/
Internal reference drift
15
°C
IQ
Quiescent current
PD1 = 1, PD0 = 0, SDA and SCL high
500
µA
Reference Input
VI
Input voltage
1
+VCC
V
SER/DFR = 0, PD1 = 0, Internal reference off
1
G
Input impedance
Internal reference on
250
Ω
Battery Monitor
VI
Input voltage
0.5
6
V
Sampling battery
10
k
ZI
Input impedance
Battery monitor off
1
G
VBAT = 0.5 V to 5.5 V, External VREF = 2.5 V
-2
+2
Accuracy
%
VBAT = 0.5 V to 5.5 V, Internal reference
-3
+3
Temperature Measurement
Temperature range
-40
125
°C
Differential method(3)
1.6
Resolution
°C
TEMP0(4)
0.3
Differential method(3)
±2
Accuracy
°C
TEMP0(4)
±3
Digital Input/Output
0.7 ×
IOVDD +
VIH
High-level input voltage
| IIH | ≤ 5 µA
V
IOVDD
0.3
0.3 ×
VIL
Low-level input voltage
| IIL | ≤ 5 µA
-0.3
V
IOVDD
0.8 ×
VOH
High-level output voltage
IOH = -250 µA
V
IOVDD
VOL
Low-level output voltage
IOL = 250 µA
0.4
V
Ci
Input capacitance
All digital control input pins
5
15
pF
Power Supply Requirements
Specified performance
2.7
3.6
+VCC
Supply voltage(5)
V
Operating range
2.5
5.25
IOVDD
Supply voltage(6)
1.5
+VCC
V
Internal reference off
280
650
Internal reference on
970
IQ
Quiescent current
µA
fSAMPLE = 12.5 kHz
220
Power-down mode, CS = DCLK = DIN = IOVDD
10
28
PD
Power dissipation
+VCC = 2.7 V
1.8
mW
Temperature Range
TA
Operating free-air temperature
Specified performance
-40
125
°C
(3)
Difference between TEMP0 and TEMP1 measurement. No calibration necessary.
(4)
Temperature drift is -2.1 mV/°C.s
(5)
TSC2046E operates down to 2.2V.
(6)
IOVDD must be
≤ +VCC.
4
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Copyright © 2010, Texas Instruments Incorporated
Product Folder Link(s): TSC2046E-Q1


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