Datasheet

Temperature
Sensor
Circuitry
Control/Status
Register and Logic
Temperature
Register
Manufacturer's
ID Register
13- to 16-Bit
Sigma-Delta
A/D Converter
SI/O
SC
V
DD ANALOG
3.0V to 5.5V
LM95172EWG
CS
V
DD IO
3.0V to 5.5V
Temperature
High/Low Limit
Registers
OVERTEMP
Three-Wire
Serial Interface
4
5
7
2
1
9 10
LM95172
SNOSB33B –DECEMBER 2009–REVISED MARCH 2013 www.ti.com
PIN DESCRIPTIONS
Pin
Name Type Description Typical Connection
Number
Over-temperature Alarm Output, Open-drain. Active Low on
1 OVERTEMP Output OVERTEMP Alarm
POR. Requires a pull-up resistor to V
DD IO.
2 SC Input Serial Clock input Serial clock from the Controller
3 NC N/A No Connect Do not connect to this pin.
4 CS Input Chip Select input Chip Select input for the bus. Low pass filtered.
5 GND Ground Power Supply Ground Ground
6 NC N/A No Connect Do not connect to this pin.
Bidirection
7 SI/O Serial I/O Serial I/O Data line to or from the Controller
al
8 NC N/A No Connect Do not connect to this pin.
Analog Power Supply DC Voltage from 3.0V to 5.5V. Bypass with a 10 nF ceramic
9 V
DD ANALOG
Power
Voltage capacitor near the pad to ground.
Digital Power Supply DC Voltage from 3.0V to 5.5V. Bypass with a 10 nF ceramic
10 V
DD IO
Power
Voltage capacitor near the pin to ground.
Simplified Block Diagram
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