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TMP464 Folha de dados(PDF) 1 Page - Texas Instruments |
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TMP464 Folha de dados(HTML) 1 Page - Texas Instruments |
1 / 43 page D3+ D4+ SCL SDA THERM ADD V+ THERM2 14 4 3 13 12 9 TMP464 11 10 D1+ D2+ D- 6 5 7 GND 8 CDIFF RS1 RS2 CDIFF RS1 RS2 CDIFF RS1 RS2 CDIFF RS1 RS2 1.7 V to 3.6 V CBYPASS RSCL RSDA RT RT2 2-Wire Interface SMBus / I 2C Compatible Controller Overtemperature Shutdown Local Zone 5 Remote Zone 1 Remote Zone 2 Remote Zone 3 Remote Zone 4 Copyright © 2017, Texas Instruments Incorporated Product Folder Order Now Technical Documents Tools & Software Support & Community 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. TMP464 SBOS835 – MAY 2017 TMP464 High-Accuracy 5-Channel (4-Remote and 1-Local) Temperature Sensor 1 1 Features 1 • 4-Channel Remote Diode Temperature Sensor • Local and Remote Accuracy: ±0.75°C (Maximum) • Temperature Resolution: 0.0625°C • Supply and Logic Voltage Range: 1.7 V to 3.6 V • 43-µA Operating Current (1 SPS, All Channels Active) • 0.3-µA Shutdown Current • Remote Diode: Series Resistance Cancellation, η-Factor Correction, Offset Correction, and Diode Fault Detection • Register Lock Function Secures Key Registers • I2C or SMBus™ Compatible Two-Wire Interface With Pin-Programmable Address • 16-pin VQFN Package 2 Applications • MCU, GPU, ASIC, FPGA, DSP, and CPU Temperature Monitoring • Telecommunication Equipment • Servers and Personal Computers • Cloud Ethernet Switches • Secure Data Centers • Highly Integrated Medical Systems • Precision Instruments and Test Equipment • LED Lighting Thermal Control 3 Description The TMP464 device is a high-accuracy, low-power temperature sensor using a two-wire, SMBus or I2C compatible interface. Up to four remote diode- connected temperature zones can be monitored simultaneously in addition to the local temperature. Aggregating the temperature measurements across a system allows improved performance through tighter guard bands and can reduce board complexity. A typical use case is for monitoring the temperature across different processors, such as MCUs, GPUs, and FPGAs in complex systems such as servers and telecommunications equipment. Advanced features such as series resistance cancellation, programmable non-ideality factor, programmable offset, and programmable temperature limits are included to provide a robust thermal monitoring solution with improved accuracy and noise immunity. Each of the four remote channels (and the local channel) can be programmed independently with two thresholds that are triggered when the corresponding temperature is exceeded at the measured location. In addition, there is a programmable hysteresis setting to avoid constant toggling around the threshold. The TMP464 device provides high accuracy (0.75°C) and high resolution (0.0625°C) measurement capabilities. The device supports low voltage rails (1.7 V to 3.6 V), common two-wire interfaces, and is available in a small, space efficient package (3 mm × 3 mm ) for easy integration into computing systems. The remote junction supports a temperature range from –55°C to +150°C. The TMP464 has a preprogrammed temperature limit of 125°C. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) TMP464 VQFN (16) 3.00 mm × 3.00 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Typical Application Schematic See the Design Requirements section for remote diode recommendations. |
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