1 Features

1• ±1°C Remote Diode Sensor

• ±1°C Local Temperature Sensor

• Programmable Non-Ideality Factor

• Series Resistance Cancellation

• Alert Function

• Offset Registers for System Calibration

• Pin and Registers Compatible With ADT7461 and

ADM1032

• Programmable Resolution: 9 to 12 Bits

• Programmable Threshold Limits

• Two-Wire and SMBus Serial Interface

• Minimum and Maximum Temperature Monitors

• Multiple Interface Addresses

• ALERT and THERM2 Pin Configuration

• Diode Fault Detection

2 Applications

• LCD and DLP and 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 TMP411 device is a remote temperature sensor

monitor with a built-in local temperature sensor. The

remote temperature-sensor, diode-connected

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.

Features that are included in the TMP411 device are:

series resistance cancellation, programmable nonideality

factor, programmable resolution,

programmable threshold limits, user-defined offset

register for maximum accuracy, minimum and

maximum temperature monitors, wide remote

temperature measurement range (up to 150°C), diode

fault detection, and temperature alert function.

The TMP411 device is available in VSSOP-8 and

SOIC-8 packages.