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Texas Instruments TMP1075NDRLT
- Part No.:
- TMP1075NDRLT
- Manufacturer:
- Texas Instruments
- Category:
- Analog and Digital Output
- Package:
- SOT-563, SOT-666
- Datasheet:
-
TMP1075NDRLT.pdf
- Description:
- IC TEMPERATURE SENSOR WITH PE
- Quantity:
- Payment:
- Shipping:
Inventory:718
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Product details
Overview
TMP1075NDRLT from Texas Instruments is a high-accuracy, low-power digital temperature sensor with I²C/SMBus interface, ±1°C accuracy from −40°C to +125°C, 12-bit resolution (0.0625°C), and 1.62V–3.6V supply range - deployed in battery management, PC thermal monitoring, and enterprise machine environmental sensing.
For engineers reviewing the TMP1075NDRLT datasheet, TMP1075NDRLT pinout, TMP1075NDRLT application, or TMP1075NDRLT equivalent, key selection criteria include its SOT563-6 footprint (1.6mm × 1.6mm), ALERT interrupt capability, NIST-traceable calibration, and software compatibility with LM75/TMP75 designs.
Technical Context
The TMP1075NDRLT implements a precision bandgap-based thermal sensor with on-chip 12-bit ADC and digital conversion logic, delivering temperature data via SMBus/I²C protocol with configurable alert thresholds (THIGH/TLOW) and programmable conversion rates (10–220 ms). Its internal thermal path relies primarily on package leads for efficient heat conduction.
It supports fast-mode I²C up to 400 kHz and high-speed mode up to 2.85 MHz, includes integrated spike filters for I³C mixed-fast-mode bus coexistence, and uses open-drain SDA/ALERT outputs requiring external pullups - all while maintaining NIST-traceable calibration across its −40°C to +125°C operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Accuracy | ±1°C max from −40°C to +125°C - ensures reliable thermal trip point triggering in safety-critical systems |
| Resolution | 12-bit (0.0625°C LSB) - enables fine-grained temperature trending for predictive thermal control |
| Supply Range | 1.62V to 3.6V - compatible with single-cell Li-ion and 3.3V system rails without level shifting |
| Average Current | 4.8–7.5 μA (bus inactive) - extends battery life in portable and wireless sensor nodes |
| Shutdown Current | 0.15–0.35 μA - minimizes quiescent drain during deep-sleep modes |
| I²C Addresses | 4 unique addresses (A0 only) - supports multi-sensor configurations on compact PCBs |
| Package | SOT563-6 (1.6mm × 1.6mm) - reduces board area by 89% vs SOIC-8, enabling space-constrained designs |
Pinout & Package
SOT563-6 package (1.60 mm × 1.60 mm body, 0.5 mm pitch); thermally optimized for surface-mount applications with lead-frame thermal path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: SCL | Input | Serial clock line - accepts standard I²C/SMBus timing up to 2.85 MHz; requires external pullup |
| 2: GND | Ground | Reference return path for analog and digital circuits - must be low-impedance for accuracy |
| 3: ALERT | Output | Open-drain overtemperature alert - asserts when T ≥ THIGH or T ≤ TLOW; requires pullup |
| 4: SDA | I/O | Serial data bidirectional line - supports read/write register access and SMBus Alert response |
| 5: V+ | Power | Supply input (1.62–3.6V) - powers internal ADC, logic, and interface; bypass with 0.01 µF capacitor |
| 6: A0 | Input | Address select - sets LSB of 7-bit I²C address (0/1/SDA/SCL); sampled on every bus transaction |
Key Features
| Feature | Design Value |
|---|---|
| NIST-traceable calibration | 100% production-tested per ISO/IEC 17025-accredited standards - eliminates need for field recalibration |
| Software-compatible upgrade path | Direct register-map and command compatibility with LM75/TMP75 - enables drop-in firmware reuse |
| I³C mixed-fast-mode support | Integrated spike filter (50 ns) and Schmitt-trigger inputs - allows coexistence on modern multi-protocol buses |
| Configurable conversion rate | Four selectable update intervals (10/15/220 ms) - balances responsiveness vs power in dynamic thermal environments |
| Thermal error independence | PSR ≤ 0.5°C/V - maintains accuracy across supply ripple common in battery-powered systems |
Applications
| Power-Supply Temperature Monitoring | Mobile Phone Thermal Management |
|---|---|
Use Scenario: Real-time junction temperature tracking of DC-DC converters and LDOs in server PSUs and telecom power modules. IC Role / Device Role / Timing Role: Digital temperature sensor providing 0.0625°C-resolution readings via I²C at 10–220 ms intervals for closed-loop thermal derating. Use Value: Enables precise thermal margining to prevent premature shutdown while maximizing power delivery efficiency. | Use Scenario: Ambient and SoC die temperature monitoring in smartphones during CPU/GPU burst loads. IC Role / Device Role / Timing Role: Low-power remote sensor interfacing to application processor via shared I²C bus with ALERT-driven interrupt wake-up. Use Value: Reduces average current to <7.5 μA between reads, extending standby time without sacrificing thermal responsiveness. |
| Enterprise Machine Environmental Sensing | Wireless HVAC Sensor Node |
Use Scenario: Rack-level ambient temperature profiling in data center switches and storage controllers. IC Role / Device Role / Timing Role: Compact SOT563-6 sensor placed near ASICs and memory banks, reporting via SMBus to baseboard management controller (BMC). Use Value: 1.6mm × 1.6mm footprint allows dense placement without compromising airflow or signal integrity. | Use Scenario: Battery-operated room temperature node transmitting data over BLE or LoRaWAN. IC Role / Device Role / Timing Role: Primary temperature transducer with ALERT pin triggering ultra-low-power MCU wake-up only on threshold breach. Use Value: 0.15 μA shutdown current enables >5-year battery life using CR2032 cells in intermittent-reporting mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital temperature sensor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM75BIMM/NOPB | 8-pin VSSOP; ±2°C accuracy (−25°C to +100°C); no ALERT polarity control; 3.0V–5.5V supply | Limited to industrial-grade ambient monitoring; lacks NIST traceability and I³C compatibility | Select when cost sensitivity outweighs accuracy and modern bus requirements |
| TMP117AIYFFR | 6-pin WSON; ±0.1°C accuracy (−55°C to +150°C); 16-bit resolution; 1.8V–5.5V supply; integrated EEPROM | Higher-precision metrology and medical applications; larger footprint (2.0mm × 2.0mm) | Select when sub-0.25°C accuracy and extended range justify premium cost and layout impact |
Compared with LM75BIMM/NOPB, TMP1075NDRLT delivers tighter accuracy and lower power in a smaller package; versus TMP117AIYFFR, it trades absolute precision for broader voltage compatibility and lower system cost - making TMP1075NDRLT optimal for space-constrained, battery-aware industrial and consumer thermal monitoring.
Availability
TMP1075NDRLT is available at Aetrix Electronics and suitable for battery management, PC thermal monitoring, and enterprise machine environmental sensing requiring stable component supply across long-lifecycle industrial programs.
Supply support for TMP1075NDRLT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies for industrial, automotive, and communications markets.
The TMP1075 product line delivers high-accuracy, ultra-low-power digital temperature sensors designed specifically for thermal protection and management in space- and energy-constrained electronic systems.
FAQ
What is the operating temperature range of the TMP1075NDRLT?
The TMP1075NDRLT is specified for operation from −40°C to +125°C. This range is validated across its full supply voltage window (1.62V–3.6V) and supports use in demanding environments such as mobile device SoC thermal zones and enterprise server chassis. Accuracy remains ±1°C maximum within −40°C to +125°C, with ±2°C tolerance across the full range.
Does the TMP1075NDRLT support I²C fast-mode and high-speed mode?
Yes, the TMP1075NDRLT supports I²C fast-mode up to 400 kHz and high-speed mode up to 2.85 MHz. Its SCL and SDA pins feature integrated Schmitt triggers and spike filters, ensuring robust communication even on noisy or mixed-protocol buses. The device also supports SMBus Alert and general-call reset functions, enhancing system-level interoperability.
How many I²C addresses does the TMP1075NDRLT support?
The TMP1075NDRLT supports 4 unique I²C addresses via the A0 pin (logic 0, 1, SDA, or SCL). Unlike the 8-pin TMP1075 variants that use A0/A1/A2 for 32 addresses, the SOT563-6 TMP1075NDRLT omits A1 and A2 to minimize footprint - making it ideal for compact, single- or dual-sensor deployments where address flexibility is secondary to size and power.
Is the TMP1075NDRLT pin-compatible with the LM75 or TMP75?
No - the TMP1075NDRLT uses a 6-pin SOT563 package, while LM75 and TMP75 use 8-pin SOIC/VSSOP packages. However, TMP1075NDRLT provides full software compatibility: identical register map, command set, and I²C protocol behavior. Firmware migration requires only PCB layout changes, not driver or algorithm updates.
What is the significance of NIST traceability for the TMP1075NDRLT?
NIST traceability means every TMP1075NDRLT unit undergoes 100% production testing on equipment calibrated to ISO/IEC 17025-accredited standards. This ensures measurement uncertainty is quantified and documented, eliminating the need for customer-side calibration in regulated industries like medical devices and aerospace - directly supporting compliance with quality management systems (e.g., ISO 13485, AS9100).
TMP1075NDRLT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-563, SOT-666
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Sensor Type:
- Digital, Local
- Sensing Temperature - Local:
- -40°C ~ 125°C
- Sensing Temperature - Remote:
- -
- Output Type:
- 2-Wire Serial, I2C/SMBUS
- Voltage - Supply:
- 1.62V ~ 3.6V
- Resolution:
- 12 b
- Features:
- Shutdown Mode, One-Shot
- Accuracy - Highest (Lowest):
- ±1°C (±2°C)
- Test Condition:
- -10°C ~ 60°C (-40°C ~ 125°C)
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- SOT-563
TMP1075NDRLT FAQ
1.How can I place an order for TMP1075NDRLT through Aetrix?
Please submit a Request for Quotation (RFQ) for TMP1075NDRLT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TMP1075NDRLT reliable?
The price and inventory of TMP1075NDRLT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMP1075NDRLT is usually 5 days.
3.What payment methods are accepted for TMP1075NDRLT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMP1075NDRLT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMP1075NDRLT?
TMP1075NDRLT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMP1075NDRLT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TMP1075NDRLT?
For technical support, including TMP1075NDRLT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMP1075NDRLT requirements.
6.How does Aetrix verify that TMP1075NDRLT is sourced from the original manufacturer or authorized distributors?
All TMP1075NDRLT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TMP1075NDRLT meets industry standards.
7.What is the process for return or replacement of TMP1075NDRLT?
All TMP1075NDRLT units undergo pre-shipment inspection (PSI). If there is an issue with TMP1075NDRLT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TMP1075NDRLT part is unused and in its original packaging.
Return procedure for TMP1075NDRLT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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