Datasheet > G751-2RDF

G751-2RDF

更新时间： 2024-10-29 21:10:55

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Sensor/Transducer

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数据手册

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G751-2RDF 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)

G751-1P1f

G751-2P1f

G751-2P8f

_OST_HYST

PACKAGE

G751-1P1

G751-2P1

G751-2P8

50°C/45°C

80°C/75°C

SOP-8

Applications

System Thermal Management

Personal Computers

Office Electronics

MSOP-8

TDFN3X3-8

G751-2RD G751-2RDf

Electronic Test Equipment

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

Pin Configuration

Typical Application

+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.

To Processor

Interrupt Line

Thermal

Pad

G751

O.S. Out

SMBDATA

SMBCLK

Interface

GND

O.S. Set for active low for

wire OR’d multiple

interrupt line

SOP-8/MSOP-8

TDFN3X3-8

Note: Recommend connecting the Thermal Pad to the GND or let it keep floating.

TEL: 886-3-5788833

http://www.gmt.com.tw

Ver: 2.7

Dec 23, 2005

12 3 4 5 6 7...12

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