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LM77 Datasheet(PDF) 3 Page - Texas Instruments

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Part # LM77
Description  LM77 9-Bit Sign Digital Temperature Sensor and Thermal Window Comparator with Two-Wire Interface
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LM77 Datasheet(HTML) 3 Page - Texas Instruments

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LM77
www.ti.com
SNIS103F – JUNE 1999 – REVISED MARCH 2013
Typical Application
Figure 3. Typical Application
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Absolute Maximum Ratings
(1)
Supply Voltage
−0.3V to 6.5V
Voltage at any Pin
−0.3V to (+VS + 0.3V )
Input Current at any Pin
5 mA
Package Input Current(2)
20 mA
T_CRIT_A and INT Output Sink Current
10 mA
T_CRIT_A and INT Output Voltage
6.5V
Storage Temperature
−65°C to +125°C
Soldering Information, Lead Temperature
ESD Susceptibility(3)
Human Body Model
2500V
Machine Model
250V
For soldering specifications: http://www.ti.com/lit/SNOA549(4)
(1)
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not
apply when operating the device beyond its rated operating conditions.
(2)
When the input voltage (VI) at any pin exceeds the power supplies (VI < GND or VI > +VS) the current at that pin should be limited to 5
mA. The 20 mA maximum package input current rating limits the number of pins that can safely exceed the power supplies with an input
current of 5 mA to four.
(3)
Human body model, 100 pF discharged through a 1.5 k
Ω resistor. Machine model, 200 pF discharged directly into each pin.
(4)
Reflow temperature profiles are different for lead-free and non-lead-free packages.
Operating Ratings
(1) (2)
Specified Temperature Range
T MIN to TMAX
See(3)
−55°C to +125°C
Supply Voltage Range (+VS)
(4)
+3.0V to +5.5V
(1)
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not
apply when operating the device beyond its rated operating conditions.
(2)
LM77
θJA (thermal resistance, junction-to-ambient) when attached to a printed circuit board with 2 oz. foil is: 200°C/W for the SOIC-8
(D0008A) package, 250°C/W for the VSSOP-8 (DGK0008A) package.
(3)
While the LM77 has a full-scale-range in excess of 128°C, prolonged operation at temperatures above 125°C is not recommended.
(4)
Both part numbers of the LM77 will operate properly over the +VS supply voltage range of 3V to 5.5V . The devices are tested and
specified for rated accuracy at their nominal supply voltage. Accuracy will typically degrade 1°C/V of variation in +VS as it varies from
the nominal value.
Copyright © 1999–2013, Texas Instruments Incorporated
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