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| 型号： | TMP435ADGST |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO10 |
| 封装： | GREEN, PLASTIC, MSOP-10 |
| 文件页数： | 23/31页 |
| 文件大小： | 477K |
| 代理商： | TMP435ADGST |
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www.ti.com
SBOS495A – MARCH 2010 – REVISED APRIL 2010
ELECTRICAL CHARACTERISTICS
At TA = –40°C to +125°C and VS = 2.7V to 5.5V, unless otherwise noted.
TMP435
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
TEMPERATURE ERROR
Local Temperature Sensor
TELOCAL
TA = –40°C to +125°C
±1.25
±2.5
°C
TA = +0°C to +100°C, VS = 3.3V
±0.25
±1
°C
Remote Temperature Sensor(1)
TEREMOTE
TA = 0°C to +100°C, TDIODE = –40°C to +150°C, VS = 3.3V
±0.25
±1
°C
TA = –40°C to +100°C, TDIODE = –40°C to +150°C, VS = 3.3V
±0.5
±1.5
°C
TA = –40°C to +125°C, TDIODE = –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)
Local Channel
12
15
17
ms
Remote Channel
RC = 1
97
126
137
ms
MBeta Correction Enabled (2)
RC = 0
36
47
52
ms
RC = 1
72
93
100
ms
MBeta Correction Disabled (3)
RC = 0
33
44
47
ms
Resolution
Local Channel
12
Bits
Remote Channel
12
Bits
Remote Sensor Source Currents
High
120
mA
Series Resistance (beta correction) (4)
Medium High
60
mA
Medium Low
12
mA
Low
6
mA
Remote Transistor Ideality Factor
n
TMP435 optimized ideality factor
1.000(2)
1.008(3)
Beta Correction Range
b
0.1
27
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
mA
SMBus Input Capacitance (SCL, SDA)
3
pF
SMBus Clock Frequency
3.4
MHz
SMBus Timeout
25
32
35
ms
SCL Falling Edge to SDA Valid Time
1
ms
DIGITAL OUTPUTS
Output Low Voltage
VOL
IOUT = 6mA
0.15
0.4
V
High-Level Output Leakage Current
IOH
VOUT = VS
0.1
1
mA
ALERT/THERM2 Output Low Sink Current
ALERT/THERM2 Forced to 0.4V
6
mA
THERM Output Low Sink Current
THERM2 Forced to 0.4V
6
mA
(1)
Tested with less than 5
effective series resistance and 100pF differential input capacitance. TA is the ambient temperature of the
TMP435. 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 1k
of series line resistance is cancelled; if beta correction is enabled ('1xxx'), up to
300
is cancelled.
Copyright 2010, Texas Instruments Incorporated
3
Product Folder Link(s): TMP435
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