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Texas Instruments TMP451HQDQFRQ1
- Part No.:
- TMP451HQDQFRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Analog and Digital Output
- Package:
- 8-WSON (DQF)
- Datasheet:
-
TMP451HQDQFRQ1.pdf
- Description:
- TI automotive local and remote temperature sensor with 0.0625°C resolution, I2C/SMBus, 0x49 address, and 8-pin DQF WSON package.
- Quantity:
Unit Price:$2.659200
Ext Price:$2.659200
- Payment:
- Shipping:
Inventory:8,030
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In Stock : 8,030 PCS
| Qty. | Unit Price | Ext Price |
| 1+ | $2.659200 | $2.659200 |
| 3000+ | $1.511600 | $4534.800000 |
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Product Details
TMP451HQDQFRQ1 - TI Automotive Remote and Local Temperature Sensor
TMP451HQDQFRQ1 is an AEC-Q100 Grade 1 digital temperature sensor with one local channel, one remote-junction channel, a 1.7 V to 3.6 V supply, 0.0625°C resolution, and an I2C/SMBus-compatible interface.
Product Introduction
The TMP451HQDQFRQ1 from Texas Instruments combines a local temperature sensor and a remote-junction monitor in one 8-pin WSON package. The remote channel can measure a discrete NPN or PNP transistor, or a thermal transistor or diode integrated into a processor, MCU, FPGA, or ASIC.
The device converts both channels to 12-bit digital temperature data. Series-resistance cancellation, programmable eta-factor correction, offset correction, a programmable digital filter, temperature limits, ALERT/THERM outputs, and diode-fault detection support robust automotive thermal monitoring. The exact H orderable uses the 7-bit SMBus address 0x49.
Key Benefits
One local channel and one remote-junction channel allow a board area and a processor or discrete transistor to be monitored with one device.
Both channels provide 0.0625°C resolution, with ±1°C maximum accuracy in the stated typical operating range.
Series-resistance cancellation, eta-factor adjustment, offset correction, and digital filtering help manage remote-sensor and interconnect errors.
AEC-Q100 Grade 1 qualification and a -40°C to 125°C ambient operating range support automotive subsystem designs.
Specifications
| Parameter | Value | Condition / Notes |
|---|---|---|
| Orderable Part Number | TMP451HQDQFRQ1 | Active production orderable |
| Manufacturer | Texas Instruments | TMP451-Q1 family |
| Sensor Configuration | 1 local + 1 remote channel | Digital local and remote-junction measurement |
| Supply Voltage | 1.7 V to 3.6 V | Supply and logic voltage range |
| Resolution | 12 bit; 0.0625°C | Local and remote channels |
| Local Accuracy | ±1°C max; ±2°C max | ±1°C from 0°C to 70°C; ±2°C from -40°C to 125°C |
| Remote Accuracy | ±1°C max; ±2°C max | ±1°C at TA 0°C to 70°C; ±2°C at TA -40°C to 100°C |
| Ambient Operating Range | -40°C to 125°C | AEC-Q100 device temperature Grade 1 |
| Extended Measurement Format | -64°C to 191°C | Configurable data format; observe specified ambient limits |
| Digital Interface | I2C/SMBus, up to 2.5 MHz | Two-wire serial interface |
| 7-bit SMBus Address | 0x49 | Exact TMP451HQDQFRQ1 orderable |
| Operating Current | 27 µA typ; 40 µA max | At 0.0625 conversions per second |
| Shutdown Current | 3 µA typ; 8 µA max | Serial bus inactive |
| Package | 8-pin WSON (DQF) | 2.00 mm x 2.00 mm, 0.5 mm pitch, 0.8 mm max height |
| Carrier | Large tape and reel, 3000 pieces | Orderable suffix R |
| Part Marking | 1RUG | Package option addendum |
| Qualification | AEC-Q100 Grade 1 | Automotive rating |
| Moisture Sensitivity | MSL 1, 260°C unlimited | Level-1-260C-UNLIM |
Values are taken from the official TI TMP451-Q1 data sheet and the exact orderable-part addendum. Confirm the latest revision before design release. Open the official TI data sheet
Package Information
The exact orderable uses the 8-pin DQF WSON package. TI specifies a 2.00 mm x 2.00 mm body, 0.5 mm lead pitch, and 0.8 mm maximum height. The image below is the official DQF package-family view from the manufacturer data sheet.
Pin Definition
For the DQF top view, pin 1 is V+, pin 2 D+, pin 3 D-, pin 4 THERM, pin 5 GND, pin 6 ALERT/THERM2, pin 7 SDA, and pin 8 SCL. Follow the pin-1 indicator and the official land-pattern guidance during PCB layout.
Address and Package Variants
The DQF orderables below belong to the TMP451-Q1 family but use different factory-programmed SMBus addresses. They are not automatic substitutions; verify firmware address, package, qualification, and system requirements before changing the BOM.
| Orderable | 7-bit Address | Package | Selection Note |
|---|---|---|---|
| TMP451HQDQFRQ1 | 0x49 | WSON DQF, 8 pins | Target orderable on this page |
| TMP451AQDQFRQ1 | 0x4C | WSON DQF, 8 pins | Different SMBus address; verify firmware |
| TMP451JQDQFRQ1 | 0x4E | WSON DQF, 8 pins | Different SMBus address; verify firmware |
Manufacturer Information
Texas Instruments is a semiconductor manufacturer serving automotive, industrial, communications, personal-electronics, and embedded markets. For TMP451HQDQFRQ1 design limits, register behavior, packaging, and qualification data, use the current TI product page and official data sheet as the controlling sources.
Application Areas
Frequently Asked Questions
What is the SMBus address of TMP451HQDQFRQ1?
The exact H DQF orderable uses the 7-bit SMBus address 0x49. The A and J DQF variants use 0x4C and 0x4E, respectively.
What supply and temperature resolution does TMP451HQDQFRQ1 support?
The specified supply and logic range is 1.7 V to 3.6 V. Both local and remote channels provide 12-bit data with 0.0625°C resolution.
What can be connected to the remote temperature channel?
The remote channel can use a suitable discrete NPN or PNP transistor, or a substrate thermal transistor or diode integrated into a processor, MCU, FPGA, or ASIC. The external network must follow the TI data-sheet guidance.
Which package and automotive qualification apply to this orderable?
TMP451HQDQFRQ1 is supplied in an 8-pin, 2.00 mm x 2.00 mm WSON DQF package. It is an automotive-rated, AEC-Q100 Grade 1 device with a -40°C to 125°C ambient operating range.
Technical Notice
Technical values on this page are summarized from the official Texas Instruments data sheet and package addendum. Manufacturer documentation can change; use the current official revision for final component selection and design verification.
The family variants listed above differ in SMBus address or package option. Similar family naming does not establish drop-in compatibility. Validate electrical, mechanical, firmware, thermal, and qualification requirements before substitution.
TMP451HQDQFRQ1 Specifications
- Specifications
- Attributes
- Property Value
- Manufacturer
- Texas Instruments
- Series:
- TMP451-Q1
- Package/Case:
- 8-WSON (DQF)
- Packaging:
- Tape & Reel (TR)
- Part Status:
- Active
- Sensor Type:
- Digital, Local/Remote
- Sensing Temperature - Local:
- -40°C to 125°C
- Output Type:
- I2C/SMBus
- Voltage - Supply:
- 1.7V to 3.6V
- Resolution:
- 12 bit (0.0625°C)
- Features:
- One-Shot, ALERT/THERM, Programmable Limits, Digital Filter, Shutdown Mode
- Accuracy - Highest (Lowest):
- ±1°C (±2°C)
- Sensing Temperature - Remote:
- -64°C to 191°C
- Test Condition:
- 0°C to 70°C (-40°C to 125°C)
- Operating Temperature:
- -40°C to 125°C (TA)
- Mounting Style:
- Surface Mount
- Supplier Device Package:
- 8-WSON (2 x 2 mm, DQF)
- Grade:
- Automotive
- Qualification:
- AEC-Q100 Grade 1
- Category:
- Analog and Digital Output
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