TMP108AIYFFR Texas Instruments Integrated Circuit (BGA) In Stock
The TMP108AIYFFR is a high-accuracy digital temperature sensor from Texas Instruments operating from 1.4V supply with ±0.75°C accuracy, programmable window alert function, and I2C/SMBus interface. Provides single-channel temperature measurement in an ultra-compact 6-bump WCSP (wafer-chip-scale) package for space-constrained designs. Available with RoHS compliance, competitive pricing, and worldwide in-stock distribution.
- Manufacturer
- Texas Instruments
- Package
- BGA
- Pin Count
- 6
- Lifecycle
- ACTIVE
- Datasheet
- TMP108AIYFFR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Ultra-low 1.4V minimum supply voltage enables operation directly from coin cells and advanced low-voltage SoC power rails in wearables and IoT devices
- ±0.75°C accuracy with programmable window alert function enables precise thermal threshold monitoring with automatic interrupt generation
- I2C/SMBus digital interface with configurable I2C address allows multiple TMP108 devices on the same bus for multi-point thermal monitoring
- 6-bump WCSP ultra-compact package (JEDEC R-XBGA-B6) with fine-pitch grid array offers minimum PCB footprint for space-critical wearable and mobile designs
Applications
The TMP108AIYFFR is designed for thermal management and over-temperature protection in smartphones, tablets, wearables, and IoT sensor nodes where ultra-low supply voltage and minimal package size are critical. Its programmable window alert function makes it ideal for battery management systems and PMIC thermal supervision, alerting the host processor when junction or ambient temperatures exceed safe operating thresholds. The device is also used in medical monitoring equipment, environmental data loggers, and wireless sensor network nodes requiring accurate, low-power I2C temperature sensing.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | ANALOG CIRCUIT |
| JESD-30 Code | R-XBGA-B6 |
| JESD-609 Code | e1 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | UNSPECIFIED |
| Package Shape | RECTANGULAR |
| Package Style | GRID ARRAY, VERY THIN PROFILE, FINE PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Current-Max (Isup) | 0.006mA |
| Supply Voltage-Max (Vsup) | 3.6V |
| Supply Voltage-Min (Vsup) | 1.4V |
| Supply Voltage-Nom (Vsup) | 1.8V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Tin/Silver/Copper (Sn/Ag/Cu) |
| Terminal Form | BALL |
| Terminal Pitch | 0.4mm |
| Terminal Position | BOTTOM |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | BGA |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Mainland China, Philippines |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the minimum supply voltage and accuracy of the TMP108AIYFFR?
The TMP108AIYFFR operates from a minimum supply voltage of just 1.4V with a temperature accuracy of ±0.75°C. This combination makes it one of the lowest-voltage digital temperature sensors available, enabling direct operation from advanced low-voltage SoC rails and thin-film batteries without requiring level shifters, ideal for next-generation wearables and IoT edge devices.
How does the window alert function work on the TMP108AIYFFR?
The TMP108AIYFFR's window alert function allows users to program upper and lower temperature threshold limits via the I2C/SMBus interface. When the measured temperature moves outside this programmable window, the device asserts an alert pin to interrupt the host processor, enabling autonomous thermal monitoring without continuous polling. This reduces CPU load and power consumption in battery-operated thermal management applications.
What communication interface does the TMP108AIYFFR use and can multiple devices share the same bus?
The TMP108AIYFFR uses a standard I2C/SMBus two-wire serial interface supporting standard-mode (100kHz) and fast-mode (400kHz) operation. The device supports multiple configurable I2C addresses through address pins, allowing several TMP108 sensors to coexist on the same I2C bus for multi-point temperature monitoring — for example, measuring PCB hot spots at different locations in a single system.
What package does the TMP108AIYFFR use and what are its key dimensions?
The TMP108AIYFFR is packaged in a 6-bump WCSP (Wafer-Level Chip-Scale Package) with very thin profile and fine-pitch grid array layout (JEDEC R-XBGA-B6). This ultra-small package is one of the smallest available for digital temperature sensors, enabling PCB footprints smaller than 1mm x 1mm, which is critical for integration into hearing aids, smartwatches, and other miniaturized devices.
What are the main applications and comparable alternatives to the TMP108AIYFFR?
The TMP108AIYFFR is used in smartphone and tablet thermal protection, wearable health monitors, IoT gateway thermal management, and PMIC junction temperature supervision. Comparable alternatives include the TMP112 and TMP117 from Texas Instruments for higher precision needs, or the MCP9808 from Microchip for similar accuracy in a larger package. The TMP108AIYFFR stands out for its 1.4V operation and WCSP form factor in miniaturized designs.
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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.
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