Datasheet > ADT7461ARMZ-REEL7

ADT7461ARMZ-REEL7

更新时间： 2024-02-01 08:17:56

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	425K
描述
IC SPECIALTY ANALOG CIRCUIT, PDSO8, LEAD FREE, MO-187-AA, MSOP-8, Analog IC:Other

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ADT7461ARMZ-REEL7 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	零件包装代码：	TSSOP
包装说明：	LEAD FREE, MO-187-AA, MSOP-8	针数：	8
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5
模拟集成电路 - 其他类型：	ANALOG CIRCUIT	JESD-30 代码：	S-PDSO-G8
JESD-609代码：	e3	长度：	3 mm
湿度敏感等级：	1	功能数量：	1
端子数量：	8	最高工作温度：	120 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	TSSOP	封装形状：	SQUARE
封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	峰值回流温度（摄氏度）：	260
认证状态：	Not Qualified	座面最大高度：	1.1 mm
最大供电电压 (Vsup)：	5.5 V	最小供电电压 (Vsup)：	3 V
标称供电电压 (Vsup)：	3.3 V	表面贴装：	YES
温度等级：	INDUSTRIAL	端子面层：	Matte Tin (Sn)
端子形式：	GULL WING	端子节距：	0.65 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	40
宽度：	3 mm	Base Number Matches：	1

ADT7461ARMZ-REEL7 数据手册

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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 result, allowing

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 ADM1032

2-wire SMBus serial interface with SMBus alert support

Programmable over/under temperature limits

Offset registers for system calibration

ALERT

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

THERM

Up to two overtemperature fail-safe

Small 8-lead SOIC or MSOP package

outputs

170 µA operating current, 5.5 µA standby current

APPLICATIONS

Desktop and notebook computers

Industrial controllers

Smart batteries

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

ALERT

output can be reconfigured

output, if required.

Automotive

as a second

Enbedded systems

Burn-in applications

Instrumentation

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. A

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: 781.326.8703

www.analog.com

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