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ADM1032ARMZ-2R 데이터시트(PDF) 1 Page - ON Semiconductor |
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ADM1032ARMZ-2R 데이터시트(HTML) 1 Page - ON Semiconductor |
1 / 18 page Semiconductor Components Industries, LLC, 2012 April, 2012 − Rev. 12 1 Publication Order Number: ADM1032/D ADM1032 +15C Remote and Local System Temperature Monitor The ADM1032 is a dual-channel digital thermometer and under/overtemperature alarm intended for use in PCs and thermal management systems. The device can measure the temperature of a remote thermal diode, which can be located on the processor die or can be a discrete device (2N3904/06), accurate to 1C. A novel measurement technique cancels out the absolute value of the transistor’s base emitter voltage so that no calibration is required. The ADM1032 also measures its ambient temperature. The ADM1032 communicates over a 2-wire serial interface compatible with System Management Bus (SMBus) standards. Under/overtemperature limits can be programmed into the device over the SMBus, and an ALERT output signals when the on−chip or remote temperature measurement is out of range. This output can be used as an interrupt or as a SMBus alert. The THERM output is a comparator output that allows CPU clock throttling or on/off control of a cooling fan. An ADM1032−1 and ADM1032−2 are available. The difference between the ADM1032 and the ADM1032−1 is the default value of the external THERM limit. The ADM1032−2 has a different SMBus address. The SMBus address of the ADM1032−2 is 0x4D. Features On-chip and Remote Temperature Sensing Offset Registers for System Calibration 0.125C Resolution/1C Accuracy on Remote Channel 1C Resolution/3C Accuracy on Local Channel Fast (Up to 64 Measurements Per Second) 2-wire SMBus Serial Interface Supports SMBus Alert Programmable Under/Overtemperature Limits Programmable Fault Queue Overtemperature Fail-safe THERM Output Programmable THERM Limits Programmable THERM Hysteresis 170 mA Operating Current 5.5 mA Standby Current 3.0 V to 5.5 V Supply Small 8-lead SOIC and MSOP Packages These are Pb-Free Devices* Applications Desktop and Notebook Computers Smart Batteries Industrial Controllers Telecommunications Equipment Instrumentation Embedded Systems *For additional information on our Pb-Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. MARKING DIAGRAMS http://onsemi.com PIN ASSIGNMENT (Top View) See detailed ordering and shipping information in the package dimensions section on page 16 of this data sheet. ORDERING INFORMATION MSOP−8 CASE 846AB SOIC−8 NB CASE 751 1032AR #YWW XXXX 1 8 T1x = Refer to Order Info Table A = Assembly Location Y = Year W = Work Week G = Pb-Free Package T1x AYWG G 1 8 1032AR 01 #YWW 1 8 Marking #2 Marking #1 1023AR = Specific Device Code # = Pb-Free Package Y = Year W = Work Week XX = Assembly Lot (Note: Microdot may be in either location) MSOP−8 SOIC−8 NB SCLK SDATA ALERT GND VDD D+ D− THERM 1 2 3 4 8 7 6 5 |
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