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TMP442 Datasheet(PDF) 1 Page - Texas Instruments |
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TMP442 Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 63 page  TMP4719 High-Accuracy 3-Channel (2-Remote and 1-Local) 1.2V Logic Compatible Temperature Sensor With η-Factor 1 Features • Supply range: 1.62V to 5.5V • Wide operating range: –40°C to 125°C • Remote channel accuracy: 0.8°C – Resolution: 12-bit (0.0625°C) • Local channel accuracy: 1°C – Resolution: 8-bit (1°C) • Support I2C and SMBus interface • Low power consumption • Additional features for improved temperature measurement accuracy: – Diode non-ideality factor (η-factor) correction – Series resistance cancellation – Programmable digital filter • Remote diode fault detection • 1.2V logic-compatible input thresholds independent of supply • Footprint compatible with the TMP432 2 Applications • Standard notebook PC • Rack server motherboard • Smart network interface card (NIC) • Small cell base station • Baseband unit (BBU) • Software-defined radio • FPGA Temperature Monitoring 3 Description The TMP4719 device is a high-accuracy 0.8°C temperature sensor with one local integrated sensor and two remote temperature sensor channels that can be connected to diode-connected transistors, such as the popular MMBT3904 NPN transistor, to replace traditional thermistors or thermocouples. The remote channels can also be connected to a substrate thermal transistor or diode integrated inside microprocessors, microcontrollers, or FPGAs to monitor the die temperature of the IC. The TMP4719 supports series resistance cancellation, programmable ideality factor (η-factor), configurable temperature limits, and programmable digital filters to improve the noise immunity and provide a robust design for complex thermal environment monitoring applications. The device supports I2C and SMBus communication with logic levels down to 1.2V regardless of the main supply rail, enabling interoperability with low-voltage MCUs without needing a secondary low-voltage supply or a bus level shifter. Package Information PART NUMBER PACKAGE(1) PACKAGE SIZE(2) TMP4719 DGS (VSSOP, 10) 4.9mm × 3.0mm DSQ (WSON, 10) 2.0mm × 2.0mm (1) For more information, see the Mechanical, Packaging, and Orderable addendum. (2) The package size (length × width) is a nominal value and includes pins, where applicable. VDD DP1 DN1 SCL SDA ALERT T_CRIT GND 0.1µF 1.2V to 5.5V 10k 10k RALERT RT_CRIT SDA GPIO SCL GPIO 1.62V to 5.5V TMP4719 RS RS Processor or ASIC Optional Built-in thermal diode MCU CDIFF RS RS Optional Discrete NPN Diode- Connected Transistor CDIFF DP2 DN2 Simplified Block Diagram TMP4719 SBOSAJ7A – OCTOBER 2025 – REVISED DECEMBER 2025 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
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