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G751_15

更新时间： 2024-10-30 01:25:15

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描述
Digital Temperature Sensor and Thermal Watchdog with Two-Wire Interface

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中文翻译

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G751_15 数据手册

Global Mixed-mode Technology Inc.

G751

Digital Temperature Sensor and Thermal Watchdog

with Two-Wire Interface

General Description

Features

The G751 is a temperature sensor, Delta-Sigma

analog-to-digital converter, and digital over- tem-

perature detector with SMBus interface. The host

can query the G751 at any time to read temperature.

The open-drain Over temperature Shutdown (O.S.)

output becomes active when the temperature ex-

ceeds a programmable limit. This pin can operate in

either “Comparator” or “Interrupt” mode.

SMBus interface

Programmable Trip Point (T_OS) and Hysteresis

(T_HYST

)

Separate open-drain output pin operates as

interrupt or comparator at output

Power up defaults permit stand-alone opera-

tion as thermostat

The host can program both the temperature alarm

threshold (T_OS) and the temperature at which the

alarm condition goes away (T_HYST). In addition, the

host can read back the contents of the G751's T_OS

and T_HYSTregisters. The sensor powers up in Com-

parator mode with default thresholds of 50°C T_OS

45°C T_HYST.for G751-1 and 80°C T_OS, 75°C T_HYST

for G751-2.

Shutdown mode to minimize power con-

sumption

Up to 8 G751s can be connected to a single

bus

Key Specifications

Supply Voltage

Supply Current

3.0V to 5.5V

280µA (typ)

1mA (max)

2µA(typ)

operating

shutdown

Ordering Information

Temperature Accuracy

-25°C to 100°C ±2°C (max)

-55°C to 125°C ±3°C (max)

ORDER

NUMBER

(Pb free/Green)

G751-1P1f

_OST_HYST

PACKAGE

50°C/45°C

80°C/75°C

SOP-8

Applications

G751-2P1f

System Thermal Management

Personal Computers

Office Electronics

G751-2P8f

MSOP-8

TDFN3X3-8

G751-2RDf

Electronic Test Equipment

P1: SOP-8; P8: MSOP-8; RD: TDFN3X3-8

Pin Configuration

Typical Application Circuit

+V_S3V to 5.5V

Typical Bypass 0.1µF

(Unless mounted close

to Processor)

G751

+Vs

SMBDATA

+Vs

SMBDATA

Address(Set as

desired)

SMBCLK

O.S.

SMBCLK

O.S.

Thermal

Pad

To Processor

G751

Interrupt Line

O.S. Out

GND

SMBDATA

SMBCLK

GND

Interface

SOP-8/MSOP-8

TDFN3X3-8

O.S. Set for active low for

wire OR’d multiple

interrupt line

Note: Recommend connecting the Thermal Pad

to the Ground or let it keep floating.

TEL: 886-3-5788833

Ver: 3.1

http://www.gmt.com.tw

May 27, 2009

中文翻译

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与G751_15相关器件

型号	品牌	获取价格	描述	数据表
G751-1	ETC	获取价格	Digital Temperature Sensor and Thermal Watchdog with Two-Wire Interface
G751-1P1	GMT	获取价格	Digital Temperature Sensor and Thermal Watchdog with Two-Wire Interface
G751-1P1F	GMT	获取价格	Sensor/Transducer
G751-2	ETC	获取价格	Digital Temperature Sensor and Thermal Watchdog with Two-Wire Interface
G751-2P1	GMT	获取价格	Digital Temperature Sensor and Thermal Watchdog with Two-Wire Interface
G751-2P1F	GMT	获取价格	Sensor/Transducer, 8 Pin, Plastic/epoxy
G751-2P8	GMT	获取价格	Digital Temperature Sensor and Thermal Watchdog with Two-Wire Interface
G751-2P8F	GMT	获取价格	Sensor/Transducer, 8 Pin, Plastic/epoxy
G751-2RD	GMT	获取价格	Digital Temperature Sensor and Thermal Watchdog with Two-Wire Interface
G751-2RDF	GMT	获取价格	Sensor/Transducer

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