Remote and Local Temperature Sensor with N-Factor and Series-R Correction in VSSOP-8
Product details
Parameters
Package | Pins | Size
Features
- ±1°C Remote Diode Sensor
- ±3°C Local Temperature Sensor
- Series Resistance Cancellation
- THERM Flag Output
- ALERT/THERM2 Flag Output
- Programmable Over- and Undertemperature Limits
- Programmable Resolution: 9- to 12-Bit
- Diode Fault Detection
- SMBus-Compatible
Description
The TMP401 is a remote temperature sensor monitor with a built-in local temperature sensor. The remote sensor is capable of monitoring the temperature of any external PN junction. Typical sense elements include low-cost NPN- or PNP-type transistors and diodes, or accessible thermal diodes integrated within microcontrollers, microprocessors, or field-programmable gate arrays (FPGAs).
The accuracy of the remote sensor is ±1°C for multiple IC manufacturers, with no calibration needed. The two-wire serial interface accepts SMBus write byte, read byte, send byte, and receive byte commands to program alarm thresholds and to read temperature data.
Features included in the TMP401 are series resistance cancellation, wide remote temperature measurement range (up to +150°C), diode fault detection, and temperature alert functions.
Technical documentation
| Type | Title | Date | |
|---|---|---|---|
| * | Datasheet | TMP401 ±1°C Programmable, Remote and Local, Digital Out Temperature Sensor datasheet (Rev. B) | Oct. 10, 2014 |
| Technical articles | How to choose the right thermistor for your temperature sensing application | Feb. 12, 2020 | |
| Technical articles | How to enable thermal safety for automotive infotainment and cluster systems | Oct. 15, 2019 | |
| Technical articles | Driving industrial innovation with small-size sensors | Sep. 12, 2019 | |
| Technical articles | How to select a temperature sensor probe | Feb. 18, 2016 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Software development
Linux Mainline Status
Available in Linux Main line: Yes
Available through git.ti.com: N/A
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Design tools & simulation
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| VSSOP (DGK) | 8 | View options |
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