TMP432

Product Folder Order Now Technical Documents Tools & Software Support & Community TMP431, TMP432 SBOS441I – SEPTEMBER 2009 – REVISED OCTOBER 2019 TMP43x ±1°C Temperature Sensor With Series-R, η-Factor, and Automatic Beta Compensation 1 Features 1 ±1°C Remote Diode Sensor ±1°C Local Temperature Sensor Automatic Beta Compensation η-Factor Correction Programmable Threshold Limits Two-Wire, SMBus™ Serial Interface Minimum and Maximum Temperature Monitors Multiple Interface Addresses ALERT/THERM2 Pin Configuration Diode Fault Detection 2 Applications LCD, DLP®, LCOS Projectors Servers Industrial Controllers Central Office Telecom Equipment Desktop and Notebook Computers Storage Area Networks (SAN) Industrial And Medical Equipment Processor and FPGA Temperature Monitoring 3 Description The TMP431 and TMP432 are remote temperature sensor monitors with a built-in local temperature sensor. The remote temperature sensor diodeconnected transistors are typically low-cost, NPN- or PNP-type transistors or diodes that are an integral part of microcontrollers, microprocessors, or FPGAs. Remote accuracy is ±1°C for multiple device manufacturers, with no calibration needed. The TwoWire serial interface accepts SMBus write byte, read byte, send byte, and receive byte commands to program the alarm thresholds and to read temperature data. The TMP43x include beta compensation (correction), series resistance cancellation, programmable nonideality factor, pr...