Datasheet > ADT7461ARMZ-2REEL

ADT7461ARMZ-2REEL

更新时间： 2024-11-04 14:23:47

品牌	Logo	应用领域
亚德诺 - ADI		光电二极管
页数	文件大小	规格书
24页	392K
描述
IC SPECIALTY ANALOG CIRCUIT, PDSO8, LEAD FREE, MO-187-AA, MSOP-8, Analog IC:Other

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± ±1°C TemTꢀratꢀTCꢁMonaMꢀCꢂnaꢃ

STꢀnTsCRTsnsarocTC°rocTllranMo

AD 746±

GENERAL DESCRIPTION

FEATURES

The ADT7461¹is a dual-channel digital thermometer and

under/over temperature alarm intended for use in PCs and

thermal management systems. It is pin- and register-compatible

with the ADM1032. The ADT7461 has three additional

features: series resistance cancellation (where up to 3 kΩ

(typical) of resistance in series with the temperature monitoring

diode may be automatically cancelled from the temperature

On-chip and remote temperature sensor

0.25°C resolution/1°C accuracy on remote channel

1°C resolution/3°C accuracy on local channel

Automatically cancels up to 3 kΩ (typ) of resistance in series

with remote diode to allow noise filtering

Extended, switchable temperature measurement range

0°C to +127°C (default) or –55°C to +150°C

Pin- and register-compatible with the ADM1032

2-wire SMBus serial interface with SMBus alert support

Two SMBus address versions available:

ADT7461 SMBus address is 0x4C

ALERT

result, allowing noise filtering); configurable

output;

and an extended, switchable temperature measurement range.

The ADT7461 can accurately measure the temperature of a

remote thermal diode to 1ꢀC and the ambient temperature to

3ꢀC. The temperature measurement range defaults to 0ꢀC to

+127ꢀC, compatible with the ADM1032, but can be switched to

a wider measurement range of −55ꢀC to +150ꢀC. The ADT7461

communicates over a 2-wire serial interface compatible with

ADT7461-2 SMBus address is 0x4D

Programmable over/under temperature limits

Offset registers for system calibration

THERM

Up to two over temperature fail-safe

outputs

Small 8-lead SOIC or8-lead MSOP packages

170 μA operating current, 5.5 μA standby current

ALERT

system management bus (SMBus) standards. An

signals when the on-chip or remote temperature is out of range.

THERM

output

The

control of a cooling fan. The

THERM

output is a comparator output that allows on/off

APPLICATIONS

ALERT

output can be reconfigured

output, if required.

Desktop and notebook computers

Industrial controllers

Smart batteries

Embedded systems

Instrumentation

as a second

The SMBus address of the ADT7461 is 0x4C. An ADT7461-2

is also available, which uses SMBus Address 0x4D.

¹Protected by U.S. Patents 5,195,827; 5,867,012; 5,982,221; 6,097,239;

6,133,753; 6,169,442; other patents pending.

CONVERSION RATE

ADDRESS POINTER

ON-CHIP

TEMPERATURE

SENSOR

LOCAL TEMPERATURE

LOW LIMIT REGISTER

LOCAL TEMPERATURE

VALUE REGISTER

LOCAL TEMPERATURE

HIGH LIMIT REGISTER

ANALOG

MUX

ADC

REMOTE TEMPERATURE

LOW LIMIT REGISTER

BUSY

RUN/STANDBY

REMOTE TEMPERATURE

HIGH LIMIT REGISTER

D+

D–

REMOTE TEMPERATURE

VALUE REGISTER

SRC

BLOCK

LOCAL THERM LIMIT

REMOTE OFFSET

EXTERNAL THERM LIMIT

CONFIGURATION

EXTERNAL DIODE OPEN CIRCUIT

INTERRUPT

STATUS REGISTER

MASKING

ADT7461

SMBus INTERFACE

GND

SDATA

SCLK

THERM

ALERT/

THERM2

Figure 1. Functional Block Diagram

Rev. B

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.

Specifications subject to change without notice. No license is granted by implication

or otherwise under any patent or patent rights of Analog Devices. Trademarks and

registered trademarks are the property of their respective owners.

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

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

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与ADT7461ARMZ-2REEL相关器件

型号	品牌	获取价格	描述	数据表
ADT7461ARMZ-2REEL7	ADI	获取价格	IC SPECIALTY ANALOG CIRCUIT, PDSO8, LEAD FREE, MO-187-AA, MSOP-8, Analog IC:Other
ADT7461ARMZ-2RL7	ONSEMI	获取价格	Â±1â Temperature Monitor with Series Resist
ADT7461ARMZ-R7	ONSEMI	获取价格	Â±1â Temperature Monitor with Series Resist
ADT7461ARMZ-REEL	ONSEMI	获取价格	Â±1â Temperature Monitor with Series Resist
ADT7461ARMZ-REEL	ADI	获取价格	IC SPECIALTY ANALOG CIRCUIT, PDSO8, LEAD FREE, MO-187-AA, MSOP-8, Analog IC:Other
ADT7461ARMZ-REEL7	ADI	获取价格	IC SPECIALTY ANALOG CIRCUIT, PDSO8, LEAD FREE, MO-187-AA, MSOP-8, Analog IC:Other
ADT7461AR-REEL	ONSEMI	获取价格	Â±1â Temperature Monitor with Series Resist
ADT7461AR-REEL	ADI	获取价格	【1∑C Temperature Monitor with Series Resistan
ADT7461AR-REEL7	ADI	获取价格	【1∑C Temperature Monitor with Series Resistan
ADT7461AR-REEL7	ONSEMI	获取价格	Â±1â Temperature Monitor with Series Resist

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