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TMP422-EP 데이터시트(PDF) 3 Page - Texas Instruments

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부품명 TMP422-EP
상세설명  짹1째C REMOTE TEMPERATURE AND 짹2.5째C LOCAL TEMPERATURE SENSOR IN SOT23-8
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홈페이지  http://www.ti.com
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TMP422-EP
www.ti.com
SBOS577
– SEPTEMBER 2011
ELECTRICAL CHARACTERISTICS
At TA = –55°C to +125°C and VS = 2.7V to 5.5V, unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
TEMPERATURE ERROR
Local Temperature Sensor
TELOCAL
TA = –55°C to +125°C
±1.25
±2.5
°C
Remote Temperature Sensor(1)
TEREMOTE
TA = +15°C to +85°C, TD = –55°C to +125°C, VS = 3.3V
0.25
±1
°C
TA = –55°C to +125°C, TD = –55°C to +125°C, VS = 3.3V
±1
±3
°C
TA = –55°C to +125°C, TD = –55°C to +125°C
±3
±5
°C
vs Supply (Local/Remote)
VS = 2.7V to 5.5V
±0.2
±0.72
°C/V
TEMPERATURE MEASUREMENT
Conversion Time (per channel)
100
115
130
ms
Resolution
Local Temperature Sensor (programmable)
12
Bits
Remote Temperature Sensor
12
Bits
Remote Sensor Source Currents
High
Series Resistance 3k
Ω Max
120
μA
Medium High
60
μA
Medium Low
12
μA
Low
6
μA
Remote Transistor Ideality Factor
η
Optimized Ideality Factor
1.008
SMBus INTERFACE
Logic Input High Voltage (SCL, SDA)
VIH
2.1
V
Logic Input Low Voltage (SCL, SDA)
VIL
0.8
V
Hysteresis
500
mV
SMBus Output Low Sink Current
6
mA
SDA Output Low Voltage
VOL
IOUT = 6mA
0.15
0.4
V
Logic Input Current
0
≤ VIN ≤ 6V
–1
+1
μA
SMBus Input Capacitance (SCL, SDA)
3
pF
SMBus Clock Frequency
3.4
MHz
SMBus Timeout
25
30
35
ms
SCL Falling Edge to SDA Valid Time
1
μs
DIGITAL INPUTS
Input Capacitance
3
pF
Input Logic Levels
Input High Voltage
VIH
0.7(V+)
(V+)+0.5
V
Input Low Voltage
VIL
–0.5
0.3(V+)
V
Leakage Input Current
IIN
0V
≤ VIN ≤ VS
1
μA
POWER SUPPLY
Specified Voltage Range
VS
2.7
5.5
V
Quiescent Current
IQ
0.0625 Conversions per Second
32
38
μA
Eight Conversions per Second
400
525
μA
Serial Bus Inactive, Shutdown Mode
3
10
μA
Serial Bus Active, fS = 400kHz, Shutdown Mode
90
μA
Serial Bus Active, fS = 3.4MHz, Shutdown Mode
350
μA
Undervoltage Lockout
UVLO
2.3
2.4
2.6
V
Power-On Reset Threshold
POR
1.6
2.3
V
TEMPERATURE RANGE
Specified Range
–55
+125
°C
Thermal Resistance,
θJA
164
°C/W
junction-to-ambient SOT23
Thermal Resistance, junction-to-case
θJC
108
°C/W
SOT23
(1)
Tested with less than 5
Ω effective series resistance and 100pF differential input capacitance.
Copyright
© 2011, Texas Instruments Incorporated
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