Model No: TMP103AYFFR
Texas Instruments TMP103AYFFR
Manufacturer: Texas Instruments
SEMICON NO.: TMP103AYFFR
Package: 4-WCSP (DSBGA)
Stock: In stock
Description: Digital Temperature Sensor ±2°C 1.4V 8-bit
SEMICON NO.: TMP103AYFFR
Package: 4-WCSP (DSBGA)
Stock: In stock
Description: Digital Temperature Sensor ±2°C 1.4V 8-bit
Quantity :
| Mfr | Texas Instruments |
| Device Type | Digital Output Temperature Sensor |
| Sensor Type | Digital, Local |
| Interface Type | I²C, SMBus (2-wire) |
| Resolution | 8-bit |
| Accuracy | ±1°C (Typical), ±2°C (Max) |
| Supply Voltage | 1.4 V to 3.6 V |
| Active Quiescent Current | 3 µA (at 0.25 Hz) |
| Shutdown Current | 1 µA |
| Operating Temperature | –40°C to +125°C |
| Package | 4-WCSP (DSBGA) |
| Mounting Type | Surface Mount |
| Compliance | RoHS Compliant |
The TMP103AYFFR is an ultra-compact low-power digital temperature sensor from Texas Instruments, housed in a minuscule 4-DSBGA wafer-chip-scale package, making it one of the smallest temperature sensing solutions available for space-constrained embedded designs. This I2C and SMBus-compatible sensor delivers 8-bit resolution with 1°C granularity, ±1°C typical accuracy across -10°C to +100°C, and operates from a wide 1.4V to 3.6V supply range while consuming only 3µA active current at 0.25Hz conversion rate and 1µA in shutdown mode. Its unique Multiple Device Access (MDA) capability allows a single host command to address up to eight TMP103 devices simultaneously on the same bus, streamlining multi-zone thermal monitoring in the -40°C to +125°C temperature range.
Application Scenarios
As an ultra-small digital temperature sensor, the TMP103AYFFR serves diverse space-constrained and power-sensitive domains:
●mobile handsets and smartphones requiring thermal monitoring near processors and batteries in extremely limited PCB real estate
●notebook and laptop computers tracking multiple internal temperature zones including CPU, battery, and chassis hotspots
●solid-state drives (SSDs) monitoring NAND flash and controller temperatures for thermal throttling decisions
●server and telecom infrastructure enabling dense multi-point sensing across boards with minimal footprint
●set-top boxes and consumer electronics managing thermal protection in compact enclosures
●low-power environmental sensing and IoT devices leveraging the 1µA shutdown mode for extended battery life
●battery-powered portable instruments where the tiny WCSP package enables thermal sensing in previously unreachable locations
Frequently Asked Questions
Q: How does the MDA (Multiple Device Access) feature benefit system design? The master can issue global read or write commands that all TMP103 devices acknowledge simultaneously, reading multiple temperature zones in one transaction without polling individual addresses, significantly reducing bus traffic and host processor overhead in multi-sensor systems.
Q: Can this sensor operate at 1.4V supply? Yes, the supply range extends from 1.4V to 3.6V, though accuracy specifications are guaranteed at V+=1.8V with supply sensitivity of ±0.5°C/V maximum.
Replacement temperature monitoring models
1. TMP103CYFFR through TMP103HYFFR: Address-extended family variants (1110010 through 1110111) enabling up to eight devices per bus for multi-zone monitoring.
2. TMP112A/B: Higher-accuracy ±0.5°C alternative with 12-bit resolution in compact SOT-563 package for precision applications.
3. TMP1075: Drop-in LM75/TMP75 replacement offering ±1°C accuracy, wider voltage range, and 27 address options in standard SOIC/MSOP packages.
●mobile handsets and smartphones requiring thermal monitoring near processors and batteries in extremely limited PCB real estate
●notebook and laptop computers tracking multiple internal temperature zones including CPU, battery, and chassis hotspots
●solid-state drives (SSDs) monitoring NAND flash and controller temperatures for thermal throttling decisions
●server and telecom infrastructure enabling dense multi-point sensing across boards with minimal footprint
●set-top boxes and consumer electronics managing thermal protection in compact enclosures
●low-power environmental sensing and IoT devices leveraging the 1µA shutdown mode for extended battery life
●battery-powered portable instruments where the tiny WCSP package enables thermal sensing in previously unreachable locations
Frequently Asked Questions
Q: How does the MDA (Multiple Device Access) feature benefit system design? The master can issue global read or write commands that all TMP103 devices acknowledge simultaneously, reading multiple temperature zones in one transaction without polling individual addresses, significantly reducing bus traffic and host processor overhead in multi-sensor systems.
Q: Can this sensor operate at 1.4V supply? Yes, the supply range extends from 1.4V to 3.6V, though accuracy specifications are guaranteed at V+=1.8V with supply sensitivity of ±0.5°C/V maximum.
Replacement temperature monitoring models
1. TMP103CYFFR through TMP103HYFFR: Address-extended family variants (1110010 through 1110111) enabling up to eight devices per bus for multi-zone monitoring.
2. TMP112A/B: Higher-accuracy ±0.5°C alternative with 12-bit resolution in compact SOT-563 package for precision applications.
3. TMP1075: Drop-in LM75/TMP75 replacement offering ±1°C accuracy, wider voltage range, and 27 address options in standard SOIC/MSOP packages.
