Datasheet

TMP512
TMP513
www.ti.com SBOS491A –JUNE 2010– REVISED MAY 2011
ELECTRICAL CHARACTERISTICS: V+ = +12V (continued)
Boldface limits apply over the specified temperature range, T
A
= –40°C to +125°C.
At T
A
= +25°C, V+ = 12V, V
SENSE
= (V
IN+
– V
IN–
) = 32mV, PGA = ÷ 1, and BRNG
(1)
= 1, unless otherwise noted.
TMP512, TMP513
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
TEMPERATURE ERROR
T
A
= –40°C to +125°C ±1.25 ±2.5 °C
Local Temperature Sensor TE
LOCAL
T
A
= +15°C to +85°C, V+ = 12V ±0.25 ±1 °C
T
A
= +15°C to +85°C, T
D
= –40°C to+
±0.25 ±1 °C
150°C, V+ = 12V
T
A
= –40°C to +100°C, T
D
= –40°C to
Remote Temperature Sensor
(5)
TE
REMOTE
±1 ±3 °C
+150°C, V+ = 12V
T
A
= –40°C to +125°C, T
D
= –40°C to
±3 ±5 °C
+150°C
vs Supply, Local V+ = 3V to 5.5V, Configuration 3
(6)
0.2 0.5 °C/V
V+ = 3V to 5.5V, Configuration 3
(6)
0.2 0.5 °C/V
vs Supply, Remote
V+ = 4.5V to 26V, subregulator supply 0.01 0.05 °C/V
TEMPERATURE MEASUREMENT
Conversion Time (per channel) 100 115 130 ms
Resolution
Local Temperature Sensor 13 Bits
Remote Temperature Sensor 13 Bits
Remote Sensor Source Currents Series Resistance 3kΩ max
High 120 μA
Medium High 60 μA
Medium Low 12 μA
Low 6 μA
Default Non-Ideality Factor n TMP512/12 Optimized Ideality Factor 1.008
SMBus
Logic Input High Voltage (SCL, SDA, GPIO,
V
IH
2.1 V
A0)
Logic Input Low Voltage (SCL, SDA, GPIO,
V
IL
0.8 V
A0)
Hysteresis 500 mV
SMBus Output Low Sink Current 6 mA
SDA Output Low Voltage V
OL
I
OUT
= 6mA 0.15 0.4 V
Logic Input Current 0 ≤ V
IN
≤ 6V –1 1 μA
SMBus Input Capacitance (SCL, SDA, GPIO, A0) 3 pF
SMBus Clock Frequency 3.4 MHz
SMBus Timeout
(7)
25 30 35 ms
SCL Falling Edge to SDA Valid Time 1 μs
POWER SUPPLY
Specified Supply Range
(6)
V+ +3 +26 V
Quiescent Current 1 1.4 mA
Quiescent Current, Power-Down Mode 55 100 μA
Power-On Reset Threshold 2 V
TEMPERATURE RANGE
Specified Temperature Range –40 +125 °C
(5) Tested with one-shot measurements, and with less than 5Ω effective series resistance, and with 100pF differential input capacitance.
(6) See Subregulator section.
(7) SMBus timeout in the TMP512/13 resets the interface any time SCL or SDA is low for over 28ms.
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