ADT7461AARMZ-R datasheet(1/19 Pages) ONSEMI

部件名	ADT7461AARMZ-R

功能描述	Temperature Monitor with Series Resistance Cancellation

PDF	19 Pages

Scroll/Zoom	100%

制造商	ONSEMI [ON Semiconductor]

网页	http://www.onsemi.com

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April, 2013 − Rev. 8

1

Publication Order Number:

ADT7461A/D

ADT7461A

+15C Temperature Monitor

with Series Resistance

Cancellation

The ADT7461A is a dual-channel digital thermometer and

undertemperature/overtemperature alarm, intended for use in PCs and

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

ADM1032 and ADT7461. A feature of the ADT7461A is series

resistance cancellation, where up to 1.5 k

W (typical) of resistance in

series with the temperature monitoring diode can be automatically

cancelled from the temperature result, allowing noise filtering. The

ADT7461A has a configurable ALERT output and an extended,

switchable temperature measurement range.

The ADT7461A can measure the temperature of a remote thermal

diode accurate to

±1°C and the ambient temperature accurate to ±3°C.

The temperature measurement range defaults to 0

°C to +127°C,

compatible with the ADM1032, but it can be switched to a wider

measurement range of −64

°C to +191°C.

The ADT7461A communicates over a 2-wire serial interface,

compatible with system management bus (SMBus) standards. The

default SMBus address of the ADT7461A is 0x4C. An ADT7461A−2 is

available with an SMBus address of 0x4D. This is useful if more than one

ADT7461A is used on the same SMBus.

An ALERT output signals when the on-chip or remote temperature is

out of range. The THERM output is a comparator output that allows

on/off control of a cooling fan. The ALERT output can be reconfigured

as a second THERM output, if required.

Features

• On-Chip and Remote Temperature Sensor

• 0.25°C Resolution/1°C Accuracy on Remote Channel

• 1°C Resolution/1°C Accuracy on Local Channel

• Automatically Cancels Up to 1.5 kW (Typ) of Resistance in Series

with Remote Diode to Allow Noise Filtering

• Extended, Switchable Temperature Measurement Range

0

°C to +127°C (Default) or –64°C to +191°C

• Pin- and Register-Compatible with ADM1032 and ADT7461

• 2-wire SMBus Serial Interface with SMBus Alert Support

• Programmable Over/Undertemperature Limits

• Offset Registers for System Calibration

• Up to Two Overtemperature Fail-Safe THERM Outputs

• Small 8-lead MSOP

• 240 mA Operating Current, 5 mA Standby Current

• These are Pb-Free Devices*

Applications

• Desktop and Notebook Computers

• Industrial Controllers

• Smart Batteries

• Automotive

• Embedded Systems

• Burn-In Applications

• Instrumentation

* 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 DIAGRAM

http://onsemi.com

PIN ASSIGNMENT

(Top View)

See detailed ordering and shipping information in the package

dimensions section on page 18 of this data sheet.

ORDERING INFORMATION

MSOP−8

CASE 846AB

T1x = Refer to Ordering Information Table

A

= Assembly Location

Y

= Year

W

= Work Week

G

= Pb-Free Package

(Note: Microdot may be in either location)

1

8

T1x

AYWG

G

SCLK

SDATA

ALERT/THERM2

GND

D+

D−

THERM

VDD

8

7

6

5

1

2

3

4

类似零件编号 - ADT7461AARMZ-R

制造商	部件名	数据表	功能描述
ON Semiconductor	ADT7461AARMZ-R	282Kb / 19P	짹1??Temperature Monitor with Series Resistance Cancellation December, 2009 ??Rev. 6
Analog Devices	ADT7461AARMZ-REEL	554Kb / 24P	짹1째C Temperature Monitor with Series Resistance Cancellation 5/06-Rev. 0 to Rev. A
Analog Devices	ADT7461AARMZ-REEL7	554Kb / 24P	짹1째C Temperature Monitor with Series Resistance Cancellation 5/06-Rev. 0 to Rev. A
ON Semiconductor	ADT7461AARMZ-RL7	282Kb / 19P	짹1??Temperature Monitor with Series Resistance Cancellation December, 2009 ??Rev. 6

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Analog Devices	ADT7461	854Kb / 24P	짹1째C Temperature Monitor with Series Resistance Cancellation 10/03-Revision 0
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ON Semiconductor	ADT7461	291Kb / 20P	짹1??Temperature Monitor with Series Resistance Cancellation December, 2009 ??Rev. 6
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