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TMP421 Remote Temp Sensor
TI's remote temperature sensor monitor with a built-in local temperature sensor
Texas Instruments' TMP421 is a remote temperature sensor monitor 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 FPGAs. Remote accuracy 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 configure the device. The TMP421 includes series resistance cancellation, programmable non-ideality factor, wide remote temperature measurement range (up to +150°C), and diode fault detection.
Features
- SOT23-8 and DSBGA (WCSP) packages
- ±1°C remote diode sensor (MAX)
- ±1.5°C local temperature sensor (MAX)
- Series resistance cancellation
- n-Factor correction
Applications
- LCD/DLP®/LCOS projectors
- Servers
- Industrial controllers
- Industrial and medical equipment
- Processor/FPGA temperature monitoring
TMP421
| Image | Manufacturer Part Number | Description | Sensing Temperature - Remote | Output Type | Available Quantity | Price | ||
|---|---|---|---|---|---|---|---|---|
 |  | TMP421AIDCNT | SENSOR DIGITAL -40C-125C SOT23-8 | -64°C ~ 191°C | SMBus | 68 - Immediate | $185.24 | View Details |
Published: 2013-07-02
