Electronic Components Datasheet Search |
|
ADM1021A Datasheet(PDF) 1 Page - ON Semiconductor |
|
ADM1021A Datasheet(HTML) 1 Page - ON Semiconductor |
1 / 16 page Semiconductor Components Industries, LLC, 2012 July, 2012 − Rev. 9 1 Publication Order Number: ADM1021A/D ADM1021A Low Cost Microprocessor System Temperature Monitor Microcomputer The ADM1021A is a two-channel digital thermometer and under/overtemperature alarm, intended for use in personal computers and other systems requiring thermal monitoring and management. The device can measure the temperature of a microprocessor using a diode-connected PNP transistor, which can be provided on-chip with the Pentium III or similar processors, or can be a low cost discrete NPN/PNP device, such as the 2N3904/2N3906. A novel measurement technique cancels out the absolute value of the transistor’s base emitter voltage so that no calibration is required. The second measurement channel measures the output of an on-chip temperature sensor to monitor the temperature of the device and its environment. The ADM1021A communicates over a two-wire serial interface compatible with SMBus standards. Under/overtemperature limits can be programmed into the device over the serial bus, and an ALERT output signals when the on-chip or remote temperature is out of range. This output can be used as an interrupt or as an SMBus alert. Features Alternative to the ADM1021 On-chip and Remote Temperature Sensing No Calibration Necessary 1C Accuracy for On-chip Sensor 3C Accuracy for Remote Sensor Programmable Over/Undertemperature Limits Programmable Conversion rate 2-wire SMBus Serial Interface Supports System Management Bus (SMBus) Alert 200 mA Max Operating Current 1 mA Standby Current 3.0 V to 5.5 V Supply Small 16-lead QSOP Package This Device is Pb-Free, Halogen Free and is RoHS Compliant Applications Desktop Computers Notebook Computers Smart Batteries Industrial Controllers Telecom Equipment Instrumentation http://onsemi.com See detailed ordering and shipping information in the package dimensions section on page 15 of this data sheet. ORDERING INFORMATION MARKING DIAGRAM QSOP 16 CASE 492 PIN ASSIGNMENT 1021AARQZ = Specific Device Code YY = Year WW = Work Week G = Pb-Free Package 1021AA RQZ YYWWG ADM1021A (Top View) NC STBY SCLK NC SDATA ALERT ADD0 NC NC VDD D+ D− NC ADD1 GND GND 16 1 2 3 4 5 6 7 8 15 14 13 12 11 10 9 NC = No Connect |
Similar Part No. - ADM1021A_12 |
|
Similar Description - ADM1021A_12 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |