Texas Instruments TMP110D3IDPWR

Overview

TMP110D3IDPWR from Texas Instruments is a 5-pin X2SON-packaged I²C/SMBus-compatible digital temperature sensor with ±1.0°C accuracy across –40°C to 125°C, 12-bit resolution (0.0625°C LSB), and dual-mode ALERT pin functionality. It operates from 1.14V to 5.5V and delivers 55μA active current and 0.15μA shutdown current, targeting thermal monitoring in space-constrained, battery-sensitive systems such as SSDs and video doorbells.

For engineers reviewing the TMP110D3IDPWR datasheet, TMP110D3IDPWR pinout, TMP110D3IDPWR application, or TMP110D3IDPWR equivalent, this page provides verified package mapping, validated alert-mode timing behavior, confirmed I²C timing compliance up to 1 MHz, and precise thermal error vs. supply voltage performance data - all specific to the D3 variant with dedicated ALERT pin.

Technical Context

The TMP110D3IDPWR implements a factory-calibrated bandgap-based thermal sensing core with a 12-bit SAR ADC, delivering 0.0625°C resolution and ±1.0°C max error over –40°C to 125°C at V+ ≥ 1.4V. Its digital core supports both continuous-conversion mode (configurable 0.25–8 Hz) and one-shot mode, with conversion time fixed at 10.25–11.25 ms.

This variant uses Pin 3 as an open-drain ALERT output (not address-select), enabling comparator- or alert-mode thermal event detection with programmable high/low thresholds and fault-count hysteresis. The device maintains I²C Fast Mode Plus (1 MHz) and SMBus 3.0 compatibility while supporting I³C Mixed Bus coexistence.

Key Specifications

Pinout & Package

The TMP110D3IDPWR uses a 5-pin X2SON (DPW) package measuring 0.8 mm × 0.8 mm × 0.4 mm, with curved-edge Pin 1 marking. This variant implements the ALERT configuration: Pin 3 is a dedicated open-drain output, not address-select.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar digital temperature sensor applications.

Compared with TMP110D3IDPWR, TMP112DRLR offers tighter accuracy in a larger package, while TMP102DBVR reduces cost at the expense of accuracy and hardware alert capability - making TMP110D3IDPWR the optimal balance of size, precision, and autonomous thermal event response.

Availability

TMP110D3IDPWR is available at Aetrix Electronics and suitable for SSD thermal management, video doorbell occupancy detection, rack server motherboard sensing, and industrial PC CPU thermal protection requiring stable component supply across automotive-grade temperature ranges.

Supply support for TMP110D3IDPWR 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 and embedded processing technologies, with over 50 years of innovation in precision sensing and low-power signal chains.

The TMP110 product line delivers ultra-small, high-accuracy digital temperature sensors for cost-sensitive, space-constrained systems - designed specifically for thermal management in consumer, industrial, and enterprise storage applications.

FAQ

What is the exact pin configuration of TMP110D3IDPWR?

TMP110D3IDPWR uses a 5-pin X2SON package with fixed ALERT variant pinout: Pin 1 = GND, Pin 2 = SCL, Pin 3 = ALERT (open-drain), Pin 4 = SDA, Pin 5 = V+. Unlike address variants (TMP110D), Pin 3 is not configurable - it functions solely as ALERT output and must be pulled up externally.

Does TMP110D3IDPWR support I²C Fast Mode Plus (1 MHz)?

Yes, TMP110D3IDPWR fully supports I²C Fast Mode Plus with guaranteed timing compliance up to 1 MHz across –40°C to 125°C and 1.14V–5.5V supply. Key parameters include t(LOW) ≤ 0.5 µs, t(HIGH) ≤ 0.26 µs, and t(VDAT) ≤ 0.45 µs - enabling high-throughput polling in multi-sensor systems without bus contention.

How does the ALERT pin behave in comparator mode on TMP110D3IDPWR?

In comparator mode (Alert_Mode = 0b), TMP110D3IDPWR's ALERT pin asserts low when temperature ≥ THigh_Limit for 'Fault' consecutive conversions and remains asserted until temperature falls below TLow_Limit for the same number of conversions. Polarity is configurable - active-low default, or active-high with Polarity = 1b setting.

What is the thermal response time of TMP110D3IDPWR in air versus liquid?

TMP110D3IDPWR's specified response time (τ = 1.45 s) is measured in stirred liquid per JEDEC JESD51-14. In still air, thermal time constant increases significantly - typically 12–18 s depending on PCB copper area and airflow. For air applications, use the 125°C-rated package and validate with actual board layout per Section 9.3 Layout guidelines.

Can TMP110D3IDPWR operate reliably at 1.14V supply?

Yes, TMP110D3IDPWR is fully specified down to 1.14V: accuracy degrades to ±2.0°C (–40°C to 125°C), active current rises to 90 μA, and conversion time extends to 10.5–12 ms. Power-on reset activates at 1.02–1.06V rising, ensuring robust initialization even under brownout conditions common in energy-harvesting systems.