The TMP421-Q1, TMP422-Q1, and TMP423-Q1 devices are single, dual, and triple remote, automotive-qualified temperature sensor monitors with a built-in local temperature sensor. The remote temperature sensor diode-connected transistors are typically low-cost, NPN- or PNP-type transistors or diodes that are an integral part of microcontrollers, microprocessors, or field-programmable gate arrays (FPGAs).
Remote accuracy is ±1°C for multiple device manufacturers, with no calibration needed. The two-wire serial interface accepts SMBus write byte, read byte, send byte, and receive byte commands to configure the device.
The TMP421-Q1, TMP422-Q1, and TMP423-Q1 include series resistance cancellation, programmable non-ideality factor, wide remote temperature measurement range (up to +150°C), and diode fault detection.
The TMP421-Q1, TMP422-Q1, and TMP423-Q1 are all available in an 8-pin SOT-23 package.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TMP42x-Q1 ±1°C Remote and Local Temperature Sensor datasheet | PDF | HTML | 29 Nov 2016 |
| Technical article | How to maximize powertrain efficiency and reliability with high-accuracy temperatu | PDF | HTML | 10 May 2021 |
For additional terms or required resources, click any title below to view the detail page where available.
Available in Linux Main line: Yes
Available through git.ti.com: N/A
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SOT-23 (DCN) | 8 | Ultra Librarian |
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