ADM1028ARQZ

更新时间： 2024-09-17 12:59:11

品牌	Logo	应用领域
亚德诺 - ADI		显示器风扇二极管
页数	文件大小	规格书
16页	194K
描述
IC SPECIALTY ANALOG CIRCUIT, PDSO16, MO-137AB, QSOP-16, Analog IC:Other

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数据手册

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ADM1028ARQZ 数据手册

Remote Thermal Diode

Monitor with Linear Fan Control

ADM1028

FEATURES

GENERAL DESCRIPTION

The ADM1028 is a low-cost temperature monitor and fan

controller for microprocessor-based systems. The temperature

of a remote sensor diode may be measured, allowing monitoring

of processor temperature in single processor systems. An on-chip

temperature sensor monitors ambient system temperature.

On-Chip Temperature Sensor

External Temperature Measurement with Remote Diode

Interrupt and Over-Temperature Outputs

Fault-Tolerant Fan Control with Auto Hardware Trip Point

Remote Reset and Power-Down Functions

LDCM Support

System Management Bus (SMBus) Communications

Standby Mode to Minimize Power Consumption

Limit Comparison of all Monitored Values

DAC Output for Linear Fan Speed Control

Ramp Rate Register for Control of Rate of Change of

Fan Speed, Reduction of Fan Acoustics

Measured values can be read out via the System Management

Bus, and values for limit comparisons can be programmed in

over the same serial bus.

The ADM1028 also contains a DAC for fan speed control. An

automatic hardware temperature trip point is provided and the fan

will be driven to full speed if it is exceeded. A Ramp Rate Register

is provided to control the rate with which fan speed is increased or

decreased. This is to eliminate sudden changes in fan speed,

thereby reducing fan acoustics and prolonging the fan’s life.

APPLICATIONS

Network Servers and Personal Computers

Microprocessor-Based Office Equipment

Test Equipment and Measuring Instruments

Finally, the chip has remote reset and power-down functionality,

allowing it to be remotely shut down via the SMBus.

The ADM1028’s 3.0 V to 5.5 V supply voltage range, low

supply current, and SMBus make it ideal for a wide range of

applications. These include hardware monitoring applications

in PCs, electronic test equipment, and office electronics.

FUNCTIONAL BLOCK DIAGRAM

CC3AUX

POWER-ON

RESET

CC3AUX

10k⍀

ADM1028

SDA

SCL

SERIAL BUS

INTERFACE

R_OFF

R_RST

REMOTE

FUNCTION

ANALOG O/P

COUNTER

AND 8-BIT DAC

FAN_SPD/NTEST_IN

ADDRESS

POINTER

RESET

AUXRST

RST

VALUE AND

LIMIT

REGISTERS

ALERT

STATUS

FAN_SPD SHUTOFF

AND R_OFF RESET

LIMIT

COMPARATORS

D+

ADC

ANALOG

INTERRUPT

STATUS

REGISTERS

SIGNAL

CONDITIONING

D–

2.5V

INT MASK

BANDGAP

REFERENCE

CC3AUX

10k⍀

INT

MASK

GATING

THERMA/NTEST_OUT

CONFIGURATION

THERMB

FAN_OFF

GPI

GND

REV. A

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat

may result from its use. No license is granted by implication or otherwise

under any patent or patent rights of Analog Devices.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

Fax: 781/326-8703

www.analog.com

12 3 4 5 6 7...16

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与ADM1028ARQZ相关器件

型号	品牌	获取价格	描述	数据表
ADM1028ARQZ-REEL	ADI	获取价格	IC SPECIALTY ANALOG CIRCUIT, PDSO16, MO-137AB, QSOP-16, Analog IC:Other
ADM1028ARQZ-REEL7	ADI	获取价格	IC SPECIALTY ANALOG CIRCUIT, PDSO16, MO-137AB, QSOP-16, Analog IC:Other
ADM1029	ADI	获取价格	Dual PWM Fan Controller and Temperature Monitor for High Availability Systems
ADM1029	ONSEMI	获取价格	Dual PWM Fan Controller and Temperature Monitor for High Availability Systems
ADM1029ARQ	ADI	获取价格	Dual PWM Fan Controller and Temperature Monitor for High Availability Systems
ADM1029ARQ-REEL	ADI	获取价格	IC SPECIALTY ANALOG CIRCUIT, PDSO24, MO-137AE, QSOP-24, Analog IC:Other
ADM1029ARQ-REEL7	ONSEMI	获取价格	SPECIALTY ANALOG CIRCUIT, PDSO24, MO-137AE, QSOP-24
ADM1029ARQ-REEL7	ADI	获取价格	IC SPECIALTY ANALOG CIRCUIT, PDSO24, MO-137AE, QSOP-24, Analog IC:Other
ADM1029ARQZ	ONSEMI	获取价格	Dual PWM Fan Controller and Temperature Monitor for High Availability Systems
ADM1029ARQZ-R7	ONSEMI	获取价格	Dual PWM Fan Controller and Temperature Monitor for High Availability Systems

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