TMP451-Q1

www.ti.com SLOS877C – OCTOBER 2014 – REVISETTDMMAPPP44R55IL112--QQ02111 SLOS877C – OCTOBER 2014 – REVISED APRIL 2021 TMP451-Q1 ±1°C Remote and Local Temperature Sensor With η-Factor and Offset Correction, Series-Resistance Cancellation, and Programmable Digital Filter 1 Features Qualified for automotive applications AEC-Q100 qualified with the following results: – Device temperature grade 1: –40°C to 125°C ambient operating temperature range ±1°C accuracy for local and remote diode sensors 0.0625°C resolution for local and remote channels 1.7-V to 3.6-V supply and logic voltage range 27-µA operating current, 3-µA shutdown current Series resistance cancellation η-factor and offset correction Programmable digital filter Diode fault detection Two-wire and SMBus™ serial interface 8-pin WSON (WDFN) packages – 2.50-mm × 2.50-mm with Wettable Flanks (DQW) – 2.00-mm × 2.00-mm (DQF) 2 Applications Automotive infotainment systems ECU processor temperature monitoring TCM processor temperature monitoring BCM processor temperature monitoring LED headlight thermal control 3 Description The TMP451-Q1 device is a high-accuracy, low-power remote temperature sensor monitor with a built-in local temperature sensor. The remote temperature sensors are typically low-cost discrete NPN or PNP transistors, or substrate thermal transistors or diodes that are integral parts of microprocessors, microcontrollers, or FPGAs. The temperature is represented as a 12-bit...