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ADM1029 Datasheet(PDF) 1 Page - Analog Devices

Part No. ADM1029
Description  Dual PWM Fan Controller and Temperature Monitor for High Availability Systems
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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ADM1029 Datasheet(HTML) 1 Page - Analog Devices

 
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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


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