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LM95213 Datasheet(PDF) 1 Page - Texas Instruments |
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LM95213 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 43 page LM95213 www.ti.com SNIS147A – MARCH 2007 – REVISED MARCH 2013 2-Diode Input and Local Digital Temperature Sensor with Two-Wire Interface and TCRIT Outputs Check for Samples: LM95213 1 FEATURES DESCRIPTION The LM95213 is an 11-bit digital temperature sensor 23 • Accurately Senses Die Temperature of 2 with a 2-wire System Management Bus (SMBus) Remote ICs or Diode Junctions and Local interface that can monitor the temperature of two Temperature remote diodes as well as its own temperature. The • 0.125°C LSb Temperature Resolution LM95213 can be used to very accurately monitor the temperature of up to two external devices such as • 0.03125°C LSb Remote Temperature microprocessors, graphics processors or diode- Resolution with Digital Filter Enabled connected 2N3904s. • +127.875°C/–128°C and 0°C/255°C Remote Ranges The LM95213 reports temperature in two different formats for +127.875°C/–128°C range and 0°C/255°C • Programmable Digital Filters and Analog Front range. The LM95213 TCRIT1, TCRIT2 and TCRIT3 End Filter outputs are triggered when any unmasked channel • Remote Diode Fault Detection, Model exceeds its corresponding programmable limit and Selection and Offset Correction can be used to shutdown the system, to turn on the system fans or as a microcontroller interrupt function. • Mask and Status Register Support The current status of the TCRIT1, TCRIT2 and • 3 Programmable TCRIT Outputs with TCRIT3 pins can be read back from the status Programmable Shared Hysteresis registers. Mask registers are available for further • Programmable Conversion Rate and Shutdown control of the TCRIT outputs. Mode One-Shot Conversion Control The LM95213's remote temperature channels have • SMBus 2.0 Compatible Interface, Supports programmable digital filters to minimize unwanted TIMEOUT TCRIT events when temperature spikes are encountered. • Three-Level Address Pin • 14-Pin WSON Package For optimum flexibility and accuracy each LM95213 channel includes offset correction registers for targeting diodes other than the 2N3904. A three level APPLICATIONS address pin allows connection of up to 3 LM95213s • Processor/Computer System Thermal to the same SMBus master. The LM95213 includes Management (e.g. Laptop, Desktop, power saving functions such as: programmable Workstations, Server) conversion rate, shutdown mode, and turn off of • Electronic Test Equipment unused channels. • Office Electronics Table 1. Key Specifications VALUE UNIT Local Temperature Accuracy ±2.0 °C (max) Remote Diode Temperature Accuracy ±1.1 °C (max) Supply Voltage 3.0 to 3.6 V Average Supply Current (1Hz conversion rate) 0.57 mA (typ) 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 TruTherm is a trademark of Texas Instruments. 3 All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2007–2013, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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