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LM75BIMM-5+T 数据手册 - Maxim Integrated（美信）
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Maxim Integrated（美信）
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温度传感器
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TSSOP-8
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LM75BIMM-5+T数据手册
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LM75
Digital Temperature Sensor and Thermal
Watchdog with 2-Wire Interface
_______________________________________________________________________________________ 3
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
LOGIC (SDA, SCL, A0, A1, A2)
Input High Voltage V
IH
+V
S
x
0.7
+V
S
+
0.5
V
Input Low Voltage V
IL
-0.3
+V
S
x
0.3
V
Input High Current I
IH
V
IN
= 5V 0.005 1.0 µA
Input Low Current I
IL
V
IN
= 0V -1.0 -0.005 µA
Input Capacitance C
IN
All digital inputs 20 pF
Output High Current V
OH
= 5V 10 µA
Output Low Voltage I
OL
= 3mA 0.4 V
I
2
C-COMPATIBLE TIMING (Notes 12, 13)
(Clock) SCL Period t
SCL
Bus timeout inactive 2.5 µs
Data In Setup Time to SCL High t
SU:DAT
10% of SDA to 10% of SCL 100 ns
Data Out Stable After SCL Low t
HD:DAT
10% of SCL to 10% of SDA 0 µs
Start Condition Setup Time
(SDA Low to SCL Low)
t
SU:STA
90% of SCL to 90% of SDA 100 ns
STOP Condition Hold Time t
HD:STO
100 ns
SDA Time Low for Reset of Serial
Interface
t
TIMEOUT
(Note 14) 75 325 ms
ELECTRICAL CHARACTERISTICS (continued)
(+V
S
= +3.0V to +5.5V, unless otherwise noted. Temperature accuracy specifications apply for +V
S
= 3.3V for versions with “-3” in
the suffix and for +V
S
= 5V for versions with “-5” in the suffix. T
A
= -55°C to +125°C, unless otherwise noted. Typical values are at
+V
S
= +5V, T
A
= +25°C.) (Notes 4, 5)
Note 4: All parts operate properly over the 3V to 5.5V supply voltage range. The devices are tested and specified for rated
accuracy at their nominal supply voltage.
Note 5: All parameters are measured at T
A
= +25°C. Values over the temperature range are guaranteed by design.
Note 6: There is no industry-wide standard for temperature accuracy specifications. Maxim’s standard is six-sigma. The three-
sigma specification is included to allow easier comparison to products built by manufacturers who use different standards.
Note 7: This specification indicates how often temperature data is updated. The devices can be read at any time without regard to
conversion state, while yielding the last conversion result.
Note 8: For best accuracy, minimize output loading. Higher sink currents can affect sensor accuracy due to internal heating.
Note 9: OS delay is user programmable up to 6 over-limit conversions before OS is set to minimize false tripping in noisy environ-
ments.
Note 10: Guaranteed by design.
Note 11: Default values set at power-up.
Note 12: All timing specifications are guaranteed by design.
Note 13: Unless otherwise noted, these specifications apply for +V
S
= +5VDC for LM75BIM-5 and LM75BIMM-5 and +V
S
=
+3.3VDC for LM75BIM-3 and LM75BIMM-3. C
L
(load capacitance) on output lines = 80pF, unless otherwise specified.
The switching characteristics of the LM75 fully meet or exceed the published specifications of the I
2
C bus. These parame-
ters are the timing relationships between SCL and SDA signals related to the LM75. They are not I
2
C bus specifications.
Note 14: Holding the SDA line low for a time greater than t
TIMEOUT
causes the device to reset SDA to the IDLE state of the
serial bus communication (SDA set high).
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