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TMP432BDGSR 데이터시트(PDF) 6 Page - Texas Instruments

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부품명 TMP432BDGSR
상세설명  짹1째C TEMPERATURE SENSOR with Series-R, 管-Factor, and Automatic Beta Compensation
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TMP431, TMP432
SBOS441G – SEPTEMBER 2009 – REVISED DECEMBER 2015
www.ti.com
6.5 Electrical Characteristics
at TA = –40°C to 125°C and V+ = 2.7 V to 5.5 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
TEMPERATURE ERROR
TA = –40°C to 125°C
±1.25
±2.5
TELOCAL
Local temperature sensor
°C
TA = 0°C to 100°C, V+ = 3.3 V
±0.25
±1
TA = 0°C to 100°C, TDIODE = –40°C to 150°C, V+ = 3.3 V
±0.25
±1
TEREMOTE
Remote temperature sensor (1)
TA = –40°C to 100°C, TDIODE = –40°C to 150°C, V+ = 3.3 V
±0.5
±1.5
°C
TA = –40°C to 125°C, TDIODE = –40°C to 150°C
±3
±5
vs Supply (Local/Remote)
V+ = 2.7 V to 5.5 V
±0.2
±0.5
°C/V
TEMPERATURE MEASUREMENT CONVERSION TIME (PER CHANNEL)
Local channel
12
15
17
ms
Remote channel
RC = 1
97
126
137
ms
Beta correction enabled (2)
RC = 0
36
47
52
RC = 1
72
93
100
ms
Beta correction disabled (3)
RC = 0
33
44
47
TEMPERATURE MEASUREMENT RESOLUTION
Local channel
12
Bits
Remote channel
12
Bits
TEMPERATURE MEASUREMENT REMOTE SENSOR SOURCE CURRENTS
High
120
μA
Series resistance (beta correction) (4)
Medium-high
60
μA
Medium-low
12
μA
Low
6
μA
1.000(2)
η
Remote transistor ideality factor
TMP43x optimized ideality factor
1.008(3)
β
Beta correction range
0.1
27
SMBus INTERFACE
Logic input high voltage
VIH
2.1
V
(SCL, SDA)
VIL
Logic input low voltage (SCL, SDA)
0.8
V
Hysteresis
500
mV
SMBus output low sink current
6
mA
VOL
SDA output low voltage
IOUT = 6 mA
0.15
0.4
V
Logic input current
0
≤ VIN ≤ 6 V
–1
1
μA
SMBus input capacitance
3
pF
(SCL, SDA)
SMBus clock frequency
3.4
MHz
SMBus timeout
25
32
35
ms
SCL falling edge to SDA valid time
1
μs
DIGITAL OUTPUTS
VOL
Output low voltage
IOUT = 6 mA
0.15
0.4
V
IOH
High-level output leakage current
VOUT = V+
0.1
1
μA
ALERT/THERM2 output low
ALERT/THERM2 forced to 0.4 V
6
mA
sink current
THERM output low sink current
THERM2 forced to 0.4 V
6
mA
(1)
Tested with less than 5-
Ω effective series resistance and 100-pF differential input capacitance. TA is the ambient temperature of the
TMP43x. TDIODE is the temperature at the remote diode sensor.
(2)
Beta correction configuration set to 1000 and sensor is GND collector-connected (PNP collector to ground).
(3)
Beta correction configuration set to 0111 or sensor is diode-connected (base shorted to collector).
(4)
If beta correction is disabled (0111), then up to 1-k
Ω of series line resistance is cancelled; if beta correction is enabled (1xxx), up to
300
Ω is cancelled.
6
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Product Folder Links: TMP431 TMP432


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