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1 / 50 page REV. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 www.analog.com Fax: 781/326-8703 © Analog Devices, Inc., 2001 ADM1029 * Dual PWM Fan Controller and Temperature Monitor for High Availability Systems FUNCTIONAL BLOCK DIAGRAM FAN 2 STATUS REGISTER INTERRUPT MASKING INTERRUPT MASK REGISTERS BANDGAP REFERENCE ANALOG MUX BANDGAP TEMP SENSOR ADC ADD AIN0/GPIO0 REMOTE SENSOR SIGNAL CONDITIONING G.P. I/O REGISTER VALUE AND LIMIT REGISTERS AIN1/GPIO1 D1+/GPIO4 D1–/GPIO3 LIMIT COMPARATOR TACH1 TACH2 FAULT2 PRESENT2 FAULT1 PRESENT1 DRIVE1 DRIVE2 FAN SPEED COUNTER ADDRESS POINTER REGISTER GND INT CFAULT D2–/GPIO5 D2+/GPIO6 RESET GPIO2 TMIN/INSTALL FAN 1 STATUS REGISTER SLAVE ADDRESS REGISTER SERIAL BUS INTERFACE SCL SDA VCC INTERRUPT STATUS REGISTERS FAN 1 ALARM SPEED REGISTER FAN 1 MIN SPEED REGISTER PWM CONTROLLER FAN 1 HOT-PLUG SPEED REGISTER FAN 2 HOT-PLUG SPEED REGISTER FAN 2 ALARM SPEED REGISTER FAN 2 MIN SPEED REGISTER PWM CONTROLLER ADM1029 FEATURES Software Programmable and Automatic Fan Speed Control Automatic Fan Speed Control Allows Control Independent of CPU Intervention after Initial Setup Control Loop Minimizes Acoustic Noise and Power Consumption Remote and Local Temperature Monitoring Dual Fan Speed Measurement Supports Backup and Redundant Fans Supports Hot Swapping of Fans Cascadable Fault Output Allows Fault Signaling between Multiple ADM1029s Address Pin Allows Up to Eight ADM1029s in A System Small 24-Lead QSOP Package APPLICATIONS Network Servers and Personal Computers Microprocessor-Based Office Equipment High Availability Telecommunications Equipment *Protected by U.S. Patent Numbers 6,255,973 and 6,188,189 ©2009 SCILLC. All rights reserved. Publication Order Number: January 2009 - Rev. 1 ADM1029/D |
Số phần tương tự - ADM1029ARQZ-R7 |
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Mô tả tương tự - ADM1029ARQZ-R7 |
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