TMP75AQDGKRQ1 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The TMP75AQDGKRQ1 is an AEC-Q100 automotive-grade 12-bit digital temperature sensor with I2C/SMBus interface in the industry-standard LM75 pin-compatible MSOP-8 package, offering plus or minus 2 degrees C accuracy. It supports programmable over-temperature alert thresholds and operates from 2.7 V to 5.5 V supply. Ideal for thermal management in automotive and industrial systems with worldwide stock available.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- TMP75AQDGKRQ1 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.1755(MOQ 25)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TMP75AQDGKRQ1?
- AEC-Q100 Grade 1 automotive qualification with -40 C to 125 C operating range ensuring reliability in harsh under-hood and cabin environments
- 12-bit resolution delivering 0.0625 C temperature steps with plus or minus 2 C maximum accuracy and programmable over-temperature alert output
- LM75-compatible I2C/SMBus interface with 3-bit address selection supporting up to 8 sensors on a single 2-wire bus without additional logic
What is TMP75AQDGKRQ1 used for?
The TMP75AQDGKRQ1 is designed for automotive thermal-management applications such as battery management systems, ADAS domain controllers, and infotainment modules that require AEC-Q100-qualified temperature sensing across -40 C to 125 C. Its I2C/SMBus interface and LM75-compatible pinout make it a drop-in replacement in industrial servers, networking equipment, and motor drives that already use LM75-style sensors. The programmable alert output also suits safety-critical designs that need hardware-triggered shutdown protection independent of the host microcontroller.
What are the specifications of TMP75AQDGKRQ1?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Accuracy-Max (Cel) | 2Cel |
| Body Breadth | 3mm |
| Body Height | 0.95mm |
| Body Length or Diameter | 3mm |
| Housing | PLASTIC |
| JESD-609 Code | e4 |
| Mounting Feature | SURFACE MOUNT |
| Number of Bits | 12 |
| Operating Current-Max | 0.085mA |
| Output Interface Type | 2-WIRE INTERFACE |
| Output Voltage-Min | 0.4V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.25 |
| Package Shape/Style | SQUARE |
| Screening Level | AEC-Q100 |
| Sensors/Transducers Type | TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 2.7V |
| Surface Mount | YES |
| Terminal Finish | Nickel/Palladium/Gold/Silver (Ni/Pd/Au/Ag) |
| Termination Type | SOLDER |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the TMP75AQDGKRQ1 datasheet?
TMP75AQDGKRQ1 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TMP75AQDGKRQ1?
Compatible alternatives and drop-in replacements for TMP75AQDGKRQ1:
Switch/Digital Sensor, 12 Bit(s), 1Cel, Square, 8 Pin, Surface Mount
Switch/Digital Sensor, 12 Bit(s), 1Cel, Square, 8 Pin, Surface Mount
Serial Switch/Digital Sensor, 12 Bit(s), 0.4V Min, 2Cel, Rectangular, 8 Pin, Surface Mount
Frequently Asked Questions
What accuracy and resolution does the TMP75AQDGKRQ1 provide, and how does that serve automotive thermal monitoring?
The TMP75AQDGKRQ1 delivers 12-bit resolution with a step size of 0.0625 C and a maximum accuracy of plus or minus 2 C across the -40 C to 125 C operating range. For automotive battery-pack and motor-controller thermal monitoring, this precision is sufficient to detect dangerous hot-spots well before they reach damage thresholds, enabling proactive fan or coolant control while satisfying AEC-Q100 Grade 1 qualification requirements.
How many TMP75AQDGKRQ1 sensors can share one I2C bus, and what governs addressing?
Up to 8 TMP75AQDGKRQ1 devices can share a single I2C/SMBus 2-wire bus by configuring the three address pins A0, A1, and A2 to unique logic states. Each sensor communicates at standard 100 kHz or fast 400 kHz I2C modes. This multi-drop capability allows a single microcontroller to monitor temperature at 8 distributed points on a PCB or in a module without any address-expansion hardware.
Can TMP75AQDGKRQ1 replace an LM75 in an existing industrial design without firmware changes?
Yes. The TMP75AQDGKRQ1 uses the same 8-pin MSOP footprint, identical register map, and compatible 2.7 V to 5.5 V supply range as the industry-standard LM75, making it a pin-for-pin and software-compatible replacement. The main upgrade is AEC-Q100 Grade 1 qualification and higher 12-bit resolution compared to the LM75 9-bit output, so existing firmware needs no modification while gaining improved 0.0625 C step accuracy.
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Why Buy from FindMyChip
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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 25+ | $0.5800 | $14.50 |
| 50+ | $0.5600 | $28.00 |
| 100+ | $0.5410 | $54.10 |
| 250+ | $0.2160 | $54.00 |
| 500+ | $0.1890 | $94.50 |
| 1000+ | $0.1755 | $175.50 |
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