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Texas Instruments TMP102AQDRLRQ1
- Part No.:
- TMP102AQDRLRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Analog and Digital Output
- Package:
- SOT-563, SOT-666
- Datasheet:
-
TMP102AQDRLRQ1.pdf
- Description:
- SENSOR DIGITAL -40C-125C 6SOT
- Quantity:
- Payment:
- Shipping:
Inventory:11,969
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Product details
Overview
TMP102AQDRLRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive-qualified digital temperature sensor in SOT563 package, delivering ±2°C accuracy from –25°C to 85°C, 12-bit resolution (0.0625°C LSB), and SMBus/I²C/two-wire interface compatibility - used for thermal monitoring in engine control units and battery management systems.
For engineers reviewing the TMP102AQDRLRQ1 datasheet, TMP102AQDRLRQ1 pinout, TMP102AQDRLRQ1 application, or TMP102AQDRLRQ1 equivalent, key selection criteria include its 1.4 V–3.6 V supply range, 10 µA max active current, NIST-traceable calibration, alert output with SMBus interrupt support, and 6-pin SOT563 footprint optimized for space-constrained automotive PCBs.
Technical Context
The TMP102AQDRLRQ1 integrates a monolithic diode-based temperature sensor with a 12-bit sigma-delta ADC and on-chip oscillator, enabling direct linear temperature conversion without lookup tables or external signal conditioning. Its internal thermal path relies primarily on metal leads rather than plastic package body.
It operates as a two-wire/SMBus slave device with open-drain SDA and SCL pins, supports up to four devices per bus via ADD0 address selection, and features programmable alert thresholds (THIGH/TLOW), interrupt mode (TM=1), and timeout protection (30 ms SCL low detection).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Accuracy | ±2°C max from –25°C to 85°C; ±3°C max from –40°C to 125°C - enables reliable thermal protection without system-level calibration |
| Resolution | 12-bit output with 0.0625°C LSB - supports fine-grained thermal trending and closed-loop control |
| Supply Range | 1.4 V to 3.6 V - compatible with automotive 1.8 V and 3.3 V domains and low-voltage battery-powered modules |
| Quiescent Current | 10 µA max active; 1 µA max shutdown - extends battery life in always-on vehicle subsystems |
| Interface | SMBus, I²C, and two-wire compatible - interoperable with standard microcontroller peripherals without protocol translation |
| Operating Temp | –40°C to +125°C ambient - meets AEC-Q100 Grade 1 requirements for under-hood and powertrain applications |
| Package | SOT563 (1.6 mm × 1.6 mm) - 68% smaller footprint than SOT23, saving critical PCB area in compact ECUs |
Pinout & Package
SOT563 (6-pin) package: 1.60 mm × 1.60 mm × 0.60 mm body, exposed pad not electrically connected, moisture sensitivity level (MSL) 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - SCL | Serial clock input | Open-drain, requires external pullup; accepts 1 kHz–400 kHz (fast mode) or up to 2.85 MHz (high-speed mode) |
| 2 - GND | Ground reference | Primary thermal and electrical return path; connects directly to PCB ground plane for stability |
| 3 - ALERT | Interrupt/alert output | Open-drain SMBus alert signal; asserts when temperature exceeds THIGH or falls below TLOW |
| 4 - ADD0 | Address select input | Configures one of four possible I²C addresses (GND/V+/SDA/SCL) to enable multi-sensor bus sharing |
| 5 - V+ | Power supply input | Accepts 1.4 V–3.6 V; bypass capacitor (0.01 µF) required at pin for noise immunity |
| 6 - SDA | Serial data I/O | Open-drain bidirectional line; supports read/write register access and SMBus alert response |
Key Features
| Feature | Design Value |
|---|---|
| NIST-traceable calibration | 100% production test against NIST-traceable standards per ISO/IEC 17025 - eliminates need for end-customer recalibration |
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C operation, HBM ±2 kV, CDM ±1 kV - suitable for safety-critical automotive subsystems |
| Programmable alert thresholds | THIGH and TLOW registers configurable via I²C - enables autonomous overtemperature/undertemperature detection without host polling |
| Extended mode (13-bit) | Optional EM bit enables 13-bit temperature register format - improves resolution margin for high-precision thermal logging |
| Bus timeout protection | Resets interface if SCL held low >30 ms - prevents lockup during bus contention or controller fault conditions |
Applications
| Engine Control Unit Thermal Monitoring | Battery Management System (BMS) |
|---|---|
Use Scenario: Real-time cylinder head and intake manifold temperature tracking during cold-start and high-load operation. IC Role / Device Role / Timing Role: Local temperature sensing node with SMBus alert output triggering ECU thermal derating logic. Use Value: Enables precise air-fuel ratio correction and knock mitigation using ±2°C accuracy across –40°C to 125°C ambient range. | Use Scenario: Cell-level temperature monitoring in 12 V lead-acid and 48 V Li-ion traction battery packs. IC Role / Device Role / Timing Role: Standby-mode thermal guard detecting overheat during charging or fault conditions. Use Value: Delivers 1 µA shutdown current and fast 26–35 ms conversion to support rapid thermal event response in safety-critical BMS. |
| Infotainment Processor Throttling | HID Lamp Ballast Thermal Protection |
Use Scenario: Die temperature feedback for SoC thermal management in automotive head units and digital clusters. IC Role / Device Role / Timing Role: I²C-connected sensor providing periodic temperature reads to application processor for dynamic frequency scaling. Use Value: Leverages 4-conversion-per-second default mode and 0.0625°C resolution to detect subtle thermal drift before throttling thresholds are breached. | Use Scenario: Thermal supervision of electronic ballasts in high-intensity discharge lighting systems. IC Role / Device Role / Timing Role: Alert-driven shutdown trigger when lamp housing exceeds safe operating temperature. Use Value: Uses open-drain ALERT pin with external pullup to directly drive latch circuitry - eliminating need for GPIO polling in cost-sensitive lamp modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital temperature sensor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMP112AQDRLRQ1 | Same SOT563 package, pin-to-pin compatible; ±0.5°C accuracy (0°C–65°C), calibrated drift compensation, 10 µA active current | Higher-accuracy thermal protection where tighter error budget is required (e.g., ADAS sensor fusion) | Select TMP112AQDRLRQ1 when ±0.5°C local accuracy is mandatory and calibration drift must be minimized over lifetime |
| LM75BIMM/NOPB | SOIC-8 package; ±2°C accuracy (–25°C–100°C); 250 µA active current; no ALERT polarity control or SMBus alert command support | Non-automotive industrial controls where AEC-Q100 compliance and ultra-low power are not required | Choose LM75BIMM/NOPB only for cost-sensitive non-automotive designs accepting larger footprint and higher current draw |
Compared with TMP102AQDRLRQ1, TMP112AQDRLRQ1 delivers superior accuracy and calibrated drift performance in identical packaging, while LM75BIMM/NOPB offers legacy I²C compatibility at higher power and larger size - making TMP102AQDRLRQ1 the optimal balance of automotive qualification, precision, and ultra-low-power operation.
Availability
TMP102AQDRLRQ1 is available at Aetrix Electronics and suitable for engine control units, battery management systems, infotainment thermal throttling, and HID lamp ballast protection requiring stable component supply across automotive production lifecycles.
Supply support for TMP102AQDRLRQ1 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 automotive-grade ICs, with decades of experience in high-reliability sensor and power management solutions.
The TMP102-Q1 product line was designed specifically for automotive thermal management applications demanding AEC-Q100 qualification, ultra-low quiescent current, and minimal PCB footprint - targeting ECU, BMS, and lighting control subsystems.
FAQ
What is the operating temperature range of the TMP102AQDRLRQ1?
The TMP102AQDRLRQ1 is specified for an ambient operating temperature range of –40°C to +125°C, meeting AEC-Q100 Grade 1 requirements. Its accuracy is ±2°C maximum from –25°C to 85°C and ±3°C maximum across the full –40°C to +125°C range. The device undergoes 100% production testing at temperature extremes using NIST-traceable equipment.
Does the TMP102AQDRLRQ1 support SMBus alert functionality?
Yes, the TMP102AQDRLRQ1 supports full SMBus alert functionality. When configured in interrupt mode (TM = 1), the ALERT pin acts as an SMBus alert signal. Upon detection of an overtemperature or undertemperature condition, it asserts open-drain low and responds to the SMBus alert command (00011001) by returning its slave address - enabling multi-device arbitration on shared buses.
What is the resolution and data format of the TMP102AQDRLRQ1 temperature output?
The TMP102AQDRLRQ1 provides 12-bit temperature data with 0.0625°C per LSB resolution in standard mode. Temperature values are stored in a two-byte register (MSB first), using two's complement format for negative values. An extended 13-bit mode is also available via the EM bit in the configuration register for enhanced resolution in specific use cases.
How many TMP102AQDRLRQ1 devices can share the same I²C bus?
Up to four TMP102AQDRLRQ1 devices can operate on a single I²C or SMBus interface. This is enabled by the ADD0 pin, which selects one of four unique 7-bit slave addresses (1001000, 1001001, 1001010, or 1001011) depending on whether it is tied to GND, V+, SDA, or SCL - allowing flexible multi-sensor thermal mapping without address conflicts.
Is the TMP102AQDRLRQ1 pin-to-pin compatible with any other Texas Instruments temperature sensors?
Yes, the TMP102AQDRLRQ1 is pin-to-pin compatible with the TMP112AQDRLRQ1. Both devices use the identical SOT563 (DRL) package and share identical pinout, supply, and interface requirements. The TMP112AQDRLRQ1 adds factory calibration and improved accuracy but requires no PCB layout changes when substituted for the TMP102AQDRLRQ1.
TMP102AQDRLRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-563, SOT-666
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Sensor Type:
- Digital, Local
- Sensing Temperature - Local:
- -40°C ~ 125°C
- Sensing Temperature - Remote:
- -
- Output Type:
- I2C/SMBus
- Voltage - Supply:
- 1.4V ~ 3.6V
- Resolution:
- 11 b
- Features:
- One-Shot, Output Switch, Shutdown Mode
- Accuracy - Highest (Lowest):
- ±2°C (±3°C)
- Test Condition:
- -25°C ~ 85°C (-40°C ~ 125°C)
- Operating Temperature:
- -55°C ~ 150°C
- Mounting Type:
- Surface Mount
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Supplier Device Package:
- SOT-5X3
TMP102AQDRLRQ1 FAQ
1.How can I place an order for TMP102AQDRLRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TMP102AQDRLRQ1 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 TMP102AQDRLRQ1 reliable?
The price and inventory of TMP102AQDRLRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMP102AQDRLRQ1 is usually 5 days.
3.What payment methods are accepted for TMP102AQDRLRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMP102AQDRLRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMP102AQDRLRQ1?
TMP102AQDRLRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMP102AQDRLRQ1 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 TMP102AQDRLRQ1?
For technical support, including TMP102AQDRLRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMP102AQDRLRQ1 requirements.
6.How does Aetrix verify that TMP102AQDRLRQ1 is sourced from the original manufacturer or authorized distributors?
All TMP102AQDRLRQ1 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 TMP102AQDRLRQ1 meets industry standards.
7.What is the process for return or replacement of TMP102AQDRLRQ1?
All TMP102AQDRLRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TMP102AQDRLRQ1, 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 TMP102AQDRLRQ1 part is unused and in its original packaging.
Return procedure for TMP102AQDRLRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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