G708 datasheet(1/1 Pages) GMT

部件名	G708

功能描述	Resistor-Programmable SOT Temperature Switches

PDF	1 Pages

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制造商	GMT [Global Mixed-mode Technology Inc]

网页	http://www.gmt.com.tw

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1 / 1 page

Ver: 1.6

Aug 30, 2010

TEL: 886-3-5788833

http://www.gmt.com.tw

1

G708

Global Mixed-mode Technology Inc.

Resistor-Programmable SOT Temperature Switches

Features

±0.5°C Typical Threshold Accuracy

±3.5°C (max) Threshold Accuracy(0°C to +125°C)

±3°C Threshold Accuracy(60°C to +100°C)

Temperature Threshold Set by a 1% External

Resistor

Low 33µA Supply Current

Open-Drain Active Low Output Stage

Guaranteed Reset Valid to VCC = 0.8V

Pin-Selectable 10°C or 30°C Hysteresis

SOT-23-5 and TDFN2X2-8 Packages

Applications

µP Temperature Monitoring in High-Speed

Computers

Temperature Control

Temperature Alarms

Fan Control

Automotive

General Description

The G708 are fully integrated, resistor programmable

temperature switches with thresholds set by an exter-

nal resistor. They require only one external resistor to

set the temperature threshold within a wide 0°C to

+125°C temperature range. The G708 provides an

open-drain, active low output. These switches operate

with a +2.7V to +5.5V single supply while providing a

temperature threshold accuracy of

±0.5°C (TYP) or

±3.5°C (MAX) or ±3°C (60°C to +100°C). They typi-

cally consume 33µA supply current. Hysteresis is pin

selectable to 10°C or 30°C. The G708 are available in

5-pin SOT-23 and TDFN2X2-8 packages.

Ordering Information

ORDER

NUMBER

MARKING

TEMP.

RANGE

PACKAGE

(Green)

G708T1U

708xx

-40°C~+125°C

SOT-23-5

G708RCU

708

-40°C~+125°C

TDFN2X2-8

Note:T1 : SOT-23-5 RC: TDFN2X2-8

U : Tape & Reel

is 2.63V

Pin Configuration

Typical Application Circuit

GND

µP

VCC

GND

VCC

SET

OT

470k

Ω

0.1µF

R

SET

HYST

150

Ω

2.7V to 5.5V

G708

SOT-23-5

5

1

2

HYST

4

3

OT

SET

VCC

GND

G708

TDFN2X2-8

1

2

3

4

8

7

6

5

GND

Thermal

Pad

VCC

OT

NC

HYST

G708

NC

SET

Note 1:Thermal Pad is NC

Note 2:Connect Thermal Pad and pin 6,7,8

to heat source by PCB copper for

good heat conduction.

GND

µP

VCC

GND

VCC

SET

OT

470k

Ω

0.1µF

R

SET

HYST

150

Ω

2.7V to 5.5V

G708

SOT-23-5

5

1

2

HYST

4

3

OT

SET

VCC

GND

G708

TDFN2X2-8

1

2

3

4

8

7

6

5

GND

Thermal

Pad

VCC

OT

NC

HYST

G708

NC

SET

Note 1:Thermal Pad is NC

Note 2:Connect Thermal Pad and pin 6,7,8

to heat source by PCB copper for

good heat conduction.

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