TMP421AQDCNTQ1
ObsoleteAEC-Q100 AUTOMOTIVE 1CH REMOTE TEMPERATURE SENSOR
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TMP421AQDCNTQ1
ObsoleteAEC-Q100 AUTOMOTIVE 1CH REMOTE TEMPERATURE SENSOR
Technical Specifications
Parameters and characteristics for this part
| Specification | TMP421AQDCNTQ1 |
|---|---|
| Accuracy - Highest (Lowest) | ±1°C, ±1.5°C |
| Features | Output Switch, Programmable Limit, One-Shot, Shutdown Mode |
| Grade | Automotive |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -40 °C |
| Output Type | I2C/SMBus |
| Package / Case | SOT-23-8 |
| Qualification | AEC-Q100 |
| Resolution | 12 b |
| Sensing Temperature - Local [Max] | 127 °C |
| Sensing Temperature - Local [Min] | -40 °C |
| Sensing Temperature - Remote [Max] | 127 °C |
| Sensing Temperature - Remote [Min] | -40 °C |
| Supplier Device Package | SOT-23-8 |
| Test Condition | 15°C ~ 85°C (-40°C ~ 125°C), 15°C ~ 85°C (-40°C ~ 125°C) |
| Voltage - Supply [Max] | 5.5 V |
| Voltage - Supply [Min] | 2.7 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 3.24 | |
| 10 | $ 2.11 | |||
| 25 | $ 1.82 | |||
| 100 | $ 1.49 | |||
| Digi-Reel® | 1 | $ 3.24 | ||
| 10 | $ 2.11 | |||
| 25 | $ 1.82 | |||
| 100 | $ 1.49 | |||
| Tape & Reel (TR) | 250 | $ 1.55 | ||
| 500 | $ 1.36 | |||
| 1250 | $ 1.13 | |||
| 2500 | $ 1.05 | |||
| 6250 | $ 1.01 | |||
| Texas Instruments | SMALL T&R | 1 | $ 1.72 | |
| 100 | $ 1.42 | |||
| 250 | $ 1.02 | |||
| 1000 | $ 0.77 | |||
Description
General part information
TMP421-Q1 Series
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.
Documents
Technical documentation and resources
