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TMP423AIDCNRG4 数据表(PDF) 3 Page - Texas Instruments

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部件名 TMP423AIDCNRG4
功能描述  짹1째C Remote and Local TEMPERATURE SENSOR in SOT23-8
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

TMP423AIDCNRG4 数据表(HTML) 3 Page - Texas Instruments

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ELECTRICAL CHARACTERISTICS
TMP421
TMP422
TMP423
SBOS398B – JULY 2007 – REVISED MARCH 2008
At TA = –40°C to +125°C and VS = 2.7V to 5.5V, unless otherwise noted.
TMP421, TMP422, TMP423
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
TEMPERATURE ERROR
Local Temperature Sensor
TELOCAL
TA = –40°C to +125°C
±1.25
±2.5
°C
TA = +15°C to +85°C, VS = 3.3V
±0.25
±1.5
°C
Remote Temperature Sensor(1)
TEREMOTE
TA = +15°C to +85°C, TD = –40°C to +150°C, VS = 3.3V
±0.25
±1
°C
TA = –40°C to +100°C, TD = –40°C to +150°C, VS = 3.3V
±1
±3
°C
TA = –40°C to +125°C, TD = –40°C to +150°C
±3
±5
°C
vs Supply (Local/Remote)
VS = 2.7V to 5.5V
±0.2
±0.5
°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
TMP421/22/23 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
–40
+125
°C
Storage Range
–60
+130
°C
Thermal Resistance, SOT23
θ
JA
100
°C/W
(1)
Tested with less than 5
Ω effective series resistance and 100pF differential input capacitance.
Copyright © 2007–2008, Texas Instruments Incorporated
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3
Product Folder Link(s): TMP421 TMP422 TMP423


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