TMP451AQDQFRQ1 Texas Instruments Integrated Circuit (WSON-8) In Stock
The TMP451AQDQFRQ1 is an automotive-qualified 12-bit digital temperature sensor from Texas Instruments with a 2-wire SMBus/I2C-compatible serial interface, 1°C maximum accuracy, and AEC-Q100 qualification in a compact 8-pin WSON package (2mm x 2mm x 0.75mm). It measures local and remote junction temperatures for thermal management in automotive and industrial systems. Available from authorized distributors worldwide with in-stock inventory and fast shipping.
- Manufacturer
- Texas Instruments
- Package
- WSON-8
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- TMP451AQDQFRQ1 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7648(MOQ 100)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- AEC-Q100 automotive-qualified 12-bit digital temperature sensor for reliable operation in harsh automotive environments
- 1°C maximum accuracy for both local and remote diode-connected transistor temperature measurements
- 2-wire SMBus/I2C-compatible interface for seamless integration with automotive SoCs, MCUs, and application processors
- Compact 8-pin WSON package (2mm x 2mm x 0.75mm) for space-constrained automotive module designs
- Remote temperature measurement capability supports monitoring of CPU/GPU junction temperatures via diode-connected transistors
Applications
The TMP451AQDQFRQ1 is designed for thermal management in automotive infotainment systems, ADAS processors, and powertrain control units where precise CPU and ambient temperature monitoring is required for dynamic thermal throttling and fan control. Its AEC-Q100 qualification and extended automotive temperature range make it suitable for under-hood and cabin electronics in passenger vehicles. The device is also used in industrial computing modules, server management controllers, and battery management systems requiring accurate remote junction temperature monitoring over SMBus.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Accuracy-Max (Cel) | 1Cel |
| Body Breadth | 2mm |
| Body Height | 0.75mm |
| Body Length or Diameter | 2mm |
| Housing | PLASTIC |
| JESD-609 Code | e4 |
| Mounting Feature | SURFACE MOUNT |
| Number of Bits | 12 |
| Operating Current-Max | 0.04mA |
| Output Interface Type | 2-WIRE INTERFACE |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape/Style | SQUARE |
| Screening Level | AEC-Q100 |
| Sensors/Transducers Type | TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 1.7V |
| Surface Mount | YES |
| Terminal Finish | Nickel/Palladium/Gold/Silver (Ni/Pd/Au/Ag) |
| Termination Type | SOLDER |
| ## TMP451AQDQFRQ1 Alternates Showing results | Image |
| Package | WSON-8 |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TMP451AQDQFRQ1:
suggested
suggested
suggested
suggested
suggested
Serial Switch/Digital Sensor, 12 Bit(s), 1Cel, Rectangular, 8 Pin, Surface Mount
Frequently Asked Questions
What are the key specifications of the TMP451AQDQFRQ1 temperature sensor?
The TMP451AQDQFRQ1 is a 12-bit resolution digital temperature sensor with a maximum accuracy of ±1°C. It communicates over a 2-wire SMBus/I2C interface and is AEC-Q100 automotive-qualified, making it suitable for accurate thermal management in automotive and industrial systems operating across wide temperature ranges.
What does the TMP451AQDQFRQ1 measure and how does remote sensing work?
The TMP451AQDQFRQ1 measures both local (on-chip) temperature and remote temperature via an external diode-connected NPN transistor or the built-in thermal diode of a processor or FPGA. The remote sensing feature allows the device to accurately measure the junction temperature of a CPU, GPU, or FPGA die, which is critical for thermal throttling and cooling control in high-performance computing and automotive systems.
What package does the TMP451AQDQFRQ1 come in?
The TMP451AQDQFRQ1 is housed in an 8-pin WSON (Very Very Thin Small Outline No-Lead) package measuring 2mm x 2mm x 0.75mm. This ultra-compact surface-mount package is ideal for space-constrained automotive modules, ADAS compute boards, and infotainment units where PCB area and height clearance are at a premium.
Is the TMP451AQDQFRQ1 AEC-Q100 qualified for automotive use?
Yes, the TMP451AQDQFRQ1 carries AEC-Q100 automotive qualification (indicated by the 'Q' in the part number). It meets the stringent reliability testing requirements of the Automotive Electronics Council standard, making it approved for use in passenger vehicle systems including infotainment, ADAS, body electronics, and powertrain control modules.
What interface does the TMP451AQDQFRQ1 use and how does it connect to a host processor?
The TMP451AQDQFRQ1 uses a 2-wire SMBus/I2C-compatible serial interface for communication with a host microcontroller or SoC. It supports standard SMBus protocols including Alert Response Address (ARA) for interrupt-driven thermal event handling, simplifying integration into system management controllers and thermal monitoring software in automotive and industrial platforms.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $1.3564 | $135.64 |
| 230+ | $0.8825 | $202.97 |
| 295+ | $0.8531 | $251.66 |
| 395+ | $0.7648 | $302.10 |
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