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EMC1815多路低電壓遙控二極管溫度傳感器

2019年05月01日 08:02 xx 作者: 用戶評論(0

  microchip公司EMC1815是多路低電壓遙控二極管溫度傳感器,具有±1℃的精度,工作溫度-40℃到 +125℃,溫度傳感器分辨率0.125℃,SMBus/I2C兼容接口(高達(dá)400 kHz),工作電壓1.62V-3.6V,主要用在溫度敏感的存儲(chǔ),工業(yè),低系統(tǒng)電壓的IoT,手持設(shè)備和手持游戲機(jī)以及計(jì)算和食物存儲(chǔ)。本文介紹了EMC1815系列主要特性,功能框圖,系統(tǒng)框圖以及EMC1833評估板主要特性,框圖,電路圖,材料清單和PCB設(shè)計(jì)圖。

  The EMC1812/13/14/15/33 devices monitor one internal diode and up to four externally-connectedtemperature diodes.

  Thermal management is performed in cooperation with a host device. This consists of the host readingthe temperature data of both the external and internal temperature diodes of the EMC1812/13/14/15/33and using that data to manage thermal events or to control the speed of one or more fans.

  This device family introduces rate of change temperature measurement with associated alerts. Thisprovides a preemptive system alert and another protective measurement layer to catch and managevariable system temperatures. Resistance Error Correction automatically eliminates the temperature errorcaused by series resistance. This feature allows for routing long traces and off-board connections withwires, if desired. Automatic beta compensation eliminates the need for substrate diode and transistorconfigurations.

  The EMC1812/13/14/15/33 family has two levels of monitoring. The first provides a maskable ALERTsignal to the host when the measured temperatures exceed user programmable limits. This allows theEMC1812/13/14/15/33 to be used as an independent thermal watchdog to warn the host of temperaturehot spots without direct control by the host. The second level of monitoring provides a nonmaskableinterrupt on the THERM pin if the measured temperatures meet or exceed a second programmable limit.

  The EMC1812 is a single-channel remote temperature sensor, while the EMC1813 is a dual-channelremote temperature sensor. The remote channels for this selection of devices can support substratediodes, discrete diode connected transistors, or CPU/GPU thermal diodes.

  The EMC1814 supports anti-parallel diode (APD) only on one channel. For the channel that does notsupport APD functionality, substrate diodes, discrete diode-connected transistors or CPU/GPU thermaldiodes are supported. For the channel that supports APD, only discrete diode connected transistors maybe implemented. However, if APD is disabled on the EMC1814, then the channel that supports APD willbe functional with substrate diodes, discrete diode connected transistors and CPU/GPU thermal diodes.

  The EMC1815 and EMC1833 support APD on all channels. When APD is enabled, the channels supportonly diode connected transistors. If APD is disabled, then the channels will support substrate transistors,discrete diode connected transistors and CPU/GPU thermal diodes.

  The EMC1812/13/14/15/33 devices are high-accuracy, 2-wire (I2C) temperature sensors. The devicesmonitor up to five temperature channels. Advanced features, such as Resistance Error Correction (REC),Beta Compensation (to support CPU diodes requiring the BJT/Transistor model), and rate of temperaturechange measurement combine to provide a robust solution for complex environmental monitoringapplications.

  This device family introduces rate of change temperature measurement with associated alerts. This providesa preemptive system alert and another protective measurement layer to catch and manage variable systemtemperatures.

  The Resistance Error Correction feature automatically eliminates the temperature error caused by seriesresistance, allowing for greater flexibility in routing thermal diodes. Beta compensation eliminatestemperature errors caused by low, variable beta transistors common in current fine geometry processors. Theautomatic beta detection feature determines the optimal sensor external diode/transistor settings. This freesup the user from providing unique sensor configurations for each temperature monitoring application. Theseadvanced features plus ±1℃ measurement accuracy for both external and internal diode temperaturesprovide a low-cost, highly flexible and accurate solution for critical temperature monitoring applications.

  EMC1815系列主要特性:

  ? Measures Temperature Rate of Change Calculation with Preemptive Alert(s) Limits

  ? Up to Four External Temperature Monitors:

  – 8 Lead Devices: ±1°C maximum accuracy (-20℃ to +105℃ TA, -40℃ to +125℃ TD)

  – ±1.5℃ maximum accuracy (-40℃ to +125℃ TA, -40℃ to +125℃ TD)

  –10 Lead Devices:±1℃ maximum accuracy (-20℃ to +125℃ TA, -40℃ to+125℃ TD)

  – ±1.5℃ maximum accuracy (-40℃ to +125℃ TA, -40℃ to +125℃ TD)

  ? Internal Temperature Sensor:

  – ±1℃ maximum accuracy, -40℃ to +125℃

  ? Temperature Sensor Resolution (Internal/External): 0.125℃

  ? SMBus/I2C-Compatible Interface (up to 400 kHz)

  – Programmable or fixed address options

  ? Configurable Alert Pins

  ? Operating Voltage: 1.62V to 3.6V

  ? Temperature Range: -40℃ to +125℃

  ? Other Features: Auto-Beta Compensation, Configurable Ideality Factor, Hottest Diode Compare,Resistance Error Correction

  ? Available in 8-Lead 2x2 mm WDFN and 10-Lead 2.5x2.0 mm VDFN Packages.

  EMC1815系列應(yīng)用:

  ? Temperature Sensitive Storage

  ? Industrial

  ? IoT for Low-System Voltage

  ? Portable Electronics

  ? Handheld Gaming

  ? Computing

  ? Food Storage

  

[原創(chuàng)] Microchip EMC1815五路1.8V溫度傳感器解決方案

  圖1.EMC1815系列功能框圖

  

[原創(chuàng)] Microchip EMC1815五路1.8V溫度傳感器解決方案

  圖2.EMC1815系列系統(tǒng)框圖

  EMC1833評估板

  The EMC1833 Evaluation Board is used to evaluate the EMC18XX family of remote diode temperature monitors. Users can now easily evaluate many of the integrated features of the EMC18XX device family. The device also has a on-board connector configured for an anti-parallel diode to allow for off-board temperature measurements. In addition, the evaluation board connects to PC through a USB interface.

  Temperature can be data-logged using the Microchip Thermal Management Software Graphical User Interface (GUI)。

  The board enables users to easily evaluate many custom programmable features such as Rate of Change, Temperature Alert Limit settings, Temperature Conversion Rate, Resistance Error Correction (REC) and Power Modes.

  

  圖3.EMC1833評估板(ADM00773)外形圖:頂層

  

  圖4.EMC1833評估板(ADM00773)外形圖:底層

  EMC1833評估板(ADM00773)包括:

  ? EMC1833 Evaluation Board (ADM00773)

  ? USB cable

  ? 2N3904FS-ND transistor (TO-92 package)

  ? Important Information Sheet

  

[原創(chuàng)] Microchip EMC1815五路1.8V溫度傳感器解決方案

  圖5.EMC1833評估板(ADM00773)框圖

  

[原創(chuàng)] Microchip EMC1815五路1.8V溫度傳感器解決方案

  圖6.EMC1833評估板(ADM00773)電路圖(1)

  

[原創(chuàng)] Microchip EMC1815五路1.8V溫度傳感器解決方案

  圖7.EMC1833評估板(ADM00773)電路圖(2)

  EMC1833評估板(ADM00773)材料清單:

  

[原創(chuàng)] Microchip EMC1815五路1.8V溫度傳感器解決方案

  EMC1833評估板(ADM00773)材料清單(機(jī)械部分):

  

[原創(chuàng)] Microchip EMC1815五路1.8V溫度傳感器解決方案

  圖8.EMC1833評估板(ADM00773) PCB設(shè)計(jì)圖:頂層絲印

  

[原創(chuàng)] Microchip EMC1815五路1.8V溫度傳感器解決方案

  圖9.EMC1833評估板(ADM00773) PCB設(shè)計(jì)圖:頂層銅和絲印

  

[原創(chuàng)] Microchip EMC1815五路1.8V溫度傳感器解決方案

  圖10.EMC1833評估板(ADM00773) PCB設(shè)計(jì)圖:頂層銅

  

[原創(chuàng)] Microchip EMC1815五路1.8V溫度傳感器解決方案

  圖11.EMC1833評估板(ADM00773) PCB設(shè)計(jì)圖:底層銅

  

[原創(chuàng)] Microchip EMC1815五路1.8V溫度傳感器解決方案

  圖12.EMC1833評估板(ADM00773) PCB設(shè)計(jì)圖:底層銅和絲印

  

[原創(chuàng)] Microchip EMC1815五路1.8V溫度傳感器解決方案

  圖13.EMC1833評估板(ADM00773) PCB設(shè)計(jì)圖:底層絲印

  詳情請見:

  和

  以及

  和

  02-10567-R2_BOM_Web.pdf

  03-10567-R2.PDF

  EMC1812-Family-Data-Sheet-DS20005751A.pdf

  EMC1833-Evaulation-Board-Users-Guide-DS50002653A.pdf

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