TMP108AIYFFR

• Digital Temperature Sensor with on-Chip Conversion and Linearisation
• Two-Wire interface, I2C and SMBus Compatible
• Supply from 1.4V, 12 uA Nominal Supply Current
• 6-Ball DSBGA package, 625um Height
• -40C to 125C Operating Temperature Range
• In production, Lead-Free and RoHS Compliant

The Texas Instruments TMP108AIYFFR is a digital temperature sensor with a two-wire interface compatible with I2C and SMBus, supplied in a 6-ball DSBGA of 625um height. A digital temperature sensor converts and linearises on-chip, so the host simply reads a temperature register over the bus rather than digitising an analog voltage itself. The device operates from a supply starting at 1.4V, draws 12 uA nominal supply current, and is specified from -40C to 125C. Two record notes: the Resolution field reads '1.5B', which is the resolution in bits divided by eight rather than a bit count, and no maximum supply voltage is recorded at all; both should be taken from the manufacturer datasheet.

Small digital temperature sensors supply the board and ambient thermal telemetry behind fan control, processor throttling, battery charge gating and over-temperature protection in phones, tablets, wearables, notebooks, networking equipment and industrial controllers. Because the interface is a shared two-wire bus and the supply current is only microamps, designers scatter several around a board to build a thermal map instead of relying on one central reading. The DSBGA outline at 625um height fits stacked assemblies and space-critical modules where even a small SOT package cannot be accommodated. Battery-powered products favour sensors of this class because they can be polled continuously without measurable cost to run time.