Part Number: TMP100NA

Manufacturer: Texas Instruments

Description: SENSOR DIGITAL -55C-125C SOT23-6

Shipped from: Shenzhen/HK Warehouse

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Technical Specifications of TMP100NA/250

Datasheet  TMP100NA/250 datasheet
Category Sensors, Transducers
Family Temperature Sensors – Analog and Digital Output
Manufacturer Texas Instruments
Packaging Tape & Reel (TR)
Part Status Active
Sensor Type Digital, Local
Sensing Temperature – Local -55°C ~ 125°C
Sensing Temperature – Remote
Output Type I2C/SMBus
Voltage – Supply 2.7 V ~ 5.5 V
Resolution 11 b
Features One-Shot, Output Switch, Programmable Resolution, Shutdown Mode, Standby Mode
Accuracy – Highest (Lowest) ±2°C (±3°C)
Test Condition -25°C ~ 85°C (-55°C ~ 125°C)
Operating Temperature -55°C ~ 125°C
Mounting Type Surface Mount
Package / Case SOT-23-6
Supplier Device Package SOT-23-6

TMP100NA/3K Introduction

The TMP100NA is a highly versatile temperature sensor that offers accurate and reliable temperature measurements in a wide range of applications. This comprehensive guide aims to provide a detailed overview of the TMP100NA temperature sensor, its features, specifications, and practical implementation tips.

TMP100NA/3K Detailed Description

The TMP100 and TMP101 digital temperature sensors are perfect for use in settings for thermal control and thermal protection. The TMP100 and TMP101 can be used with two-wire, SMBus, and I2C connections. These parts can be used at temperatures ranging from -55 degrees Celsius to 125 degrees Celsius.

The temperature gauge is built into the chip of the TMP100 and TMP101. Both the wires and the plastic case of the package work to move heat. Metal has a lower thermal resistance than other materials, so the package lines are the main way heat moves through the package. When using a TMP100 or TMP101 for thermal input, the GND pin is the best choice because it is directly linked to the metal lead frame.

TMP100NA/3K Feature Description

Temp. Output in Digital Format Each temperature measurement’s digitized result is written to a read-only temperature register. The TMP100 and TMP101 devices each have a 12-bit read-only register called the temperature register that stores the most recent conversion’s results.

● Serial Interface

The TMP100 and TMP101 devices can only work as slaves on a bus that works with the SMBus, Two-Wire, or I2C interface. The SDA and SCL open-drain I/O lines are used to connect to the bus. The TMP100 and TMP101 devices support the broadcast protocol for both fast and slow modes. All data bytes are sent with the most significant bit (MSB) first.

● Bus Overview

The thing that starts the move is called the “master,” and the things that the “master” controls are called “slaves.” A master device must be in charge of the bus. This device makes the serial clock (SCL), controls who can use the bus, and makes the START and STOP conditions. To talk to a specific device, a START condition is set up, which is shown by switching the data line from HIGH to LOW while SCL is HIGH. Each bus slave alters its address byte, and the last bit determines whether a read or write is about to occur. The slave responds to the master with an acknowledgement and SDA low on the ninth clock pulse. Then, the data transfer starts and is sent over eight clock pulses, which are followed by an acknowledge bit. Changes to SDA while SCL is HIGH are control signals; hence, SDA must stay the same during data transfer. After sending all the data, the master sends a STOP signal by raising SDA while keeping SCL high.

● Slave Receiver Mode

The first bit that the master sends is the address of the slave, with the R/W bit set to low. The TMP100 or TMP101 device then lets you know that a correct address has been received. The pointer register is the next bit that the master will send. The TMP100 or TMP101 gadget then confirms that the pointer register byte has been received. The pointer register tells the computer where to write the next bit or bytes. The TMP101 and TMP100 devices let you know that each data byte has been received. By sending a START or STOP condition, the master can stop the flow of data.

● Slave Transmitter Mode

The first byte is sent by the master, and the R/W bit is set to HIGH. This is the address of the slave. The slave says that he or she has received a valid slave address. The slave sends the next byte, which is the most important bit of the register that the pointer register points to. The master says that it has received the data bit. The next bit that the slave will send is the least important one. The master says that it has received the data bit. The master can stop the flow of data by sending a Not-Acknowledge when any data byte is received or by sending a START or STOP condition.

● General Call

If the eighth bit is 0, the TMP101 and TMP100 devices react to the I2C General Call address (0000000). In the second byte, the device reacts to commands and says that it has seen the General Call address. If the second byte is 00000100, the TMP101 and TMP100 devices latch the state of their address pins but do not restart. If the second byte is 00000110, the TMP101 and TMP100 devices latch the state of their address pins and reboot their internal registers.

Device Functional Modes

● Shutdown Mode (SD)

In TMP100 and TMP101 Shutdown Mode, turning off all electronics except the serial interface saves the maximum power. The device now uses less than 1 A. TMP100 and TMP101 Shutdown Modes activate when the SD bit is 1. The machine shuts down after the change. SD = 0 keeps the gadget converting.


One-Shot Temperature Measurement Mode is built into the TMP100 and TMP101. When in shutdown mode, writing 1 to the OS/ALERT bit starts a temperature change. The gadget turns off when a conversion is made. This function makes TMP100 and TMP101 use less power when temperature monitoring is not needed. OS/ALERT shows the state of the comparator mode.

The POL bit flips OS/ALERT info upside down. For POL = 0, the OS/ALERT reads 1 until the temperature matches or exceeds THIGH for the number of faults that were set. After that, it has to read 0, because it can’t read 1. The OS/ALERT bit stays 0 until the temperature drops below TLOW for the set number of faults in a row. The TM bit doesn’t change how OS/ALERT works.


The TMP100NA temperature sensor is a great option that works well, is reliable, and fits in with other parts easily. It gives engineers and designers the confidence to correctly monitor temperature, which makes it easier for them to come up with new and better ways to solve problems.

By using the TMP100NA to its full ability, you can use precise temperature monitoring in your projects to the fullest. Its advanced features, such as high accuracy, a wide temperature range, and a small size, make it a good choice for many different uses.

The TMP100NA temperature sensor can help you improve your ideas and make sure they work the best they can. Add this high-tech digital sensing option to your projects today and see how it changes things for the better.

Contact ICRFQ right away to start an exciting trip with a lot of options. Our team is ready to help you use your imagination, solve hard problems, and build the digital systems of the future that are at the cutting edge. Don’t miss out on the chance to change the way you create things and stay ahead in the world of temperature sensing technology, which is changing quickly.

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