Datasheet > MAX6665

MAX6665

更新时间： 2024-11-25 22:55:15

品牌	Logo	应用领域
美信 - MAXIM		驱动器风扇控制器
页数	文件大小	规格书
6页	131K
描述
Fan Controller/Driver with Factory- Programmed Temperature Thresholds

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中文翻译

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数据手册

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MAX6665 数据手册

19-2056; Rev 0; 5/01

Fan Controller/Driver with Factory-

Programmed Temperature Thresholds

General Description

Features

The MAX6665 is a fully integrated thermal switch with

an internal power transistor for driving a cooling fan

rated up to 24V and 250mA. When the MAX6665’s tem-

perature rises above a factory-programmed threshold,

the FANOUT pin becomes active and powers the fan.

ꢀ On-Chip 250mA Fan Switch

ꢀ No External Components Required

ꢀ Factory-Programmed Thresholds

ꢀ Two Overtemperature Warning Signals

ꢀ Pin-Selectable 1°C, 4°C, and 8°C Hysteresis

ꢀ Low 65µA Supply Current

The MAX6665 is available with factory-programmed fan

activation threshold temperatures from +40°C to +70°C

in 5°C increments. Accuracy of the fan activation trip

point is ±±°C ꢀtypꢁ and ±ꢂ°C ꢀmaꢃꢁ. The trip point’s hys-

teresis is pin selectable to ±°C, 4°C, or 8°C. Two open-

drain logic outputs indicate overtemperature con-

ditions: WARN is activated when the temperature is

±5°C above the fan activation threshold, and OT is acti-

vated when the temperature is ꢂ0°C above the thresh-

old. These features can be used to safely power down

systems that are overheated.

Ordering Information

TEMP.

RANGE

PIN-

PACKAGE

PART

THRESHOLD

40°C

-40°C to

+125°C

MAX6665ASA40

MAX6665ASA45

MAX6665ASA50

MAX6665ASA55

MAX6665ASA60

MAX6665ASA65

8 SO-EP*

The MAX6665 operates from a +2.7V to +5.5V power

supply, and the associated fan can be powered from

4.5V to 24V. It is available in an 8-pin SO package and

operates from -40°C to +±25°C.

-40°C to

+125°C

45°C

-40°C to

+125°C

50°C

Applications

Notebook and Desktop Computers

-40°C to

+125°C

55°C

Servers

-40°C to

+125°C

PC Power Supplies

Laboratory Instruments

Card Racks

60°C

-40°C to

+125°C

65°C

-40°C to

+125°C

MAX6665ASA70

70°C

Typical Operating Circuit

*Exposed paddle

+4.5V TO +24V

100mA TO 250mA

COOLING FAN

Pin Configuration

TOP VIEW

FANOUT

WARN

+3.3V

1µF

MAX6665

100kΩ

GND

FANOUT

HYST

FORCEON

HYST

MAX6665

100kΩ

WARN

FORCEON

FANON

GND

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6

中文翻译

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与MAX6665相关器件

型号	品牌	获取价格	描述	数据表
MAX6665ASA40	MAXIM	获取价格	Fan Controller/Driver with Factory- Programmed Temperature Thresholds
MAX6665ASA40+	MAXIM	获取价格	Analog Circuit, 1 Func, BICMOS, PDSO8, 0.150 INCH, SOIC-8
MAX6665ASA45	MAXIM	获取价格	Fan Controller/Driver with Factory- Programmed Temperature Thresholds
MAX6665ASA45+	MAXIM	获取价格	Analog Circuit, 1 Func, BICMOS, PDSO8, 0.150 INCH, SOIC-8
MAX6665ASA45+T	MAXIM	获取价格	暂无描述
MAX6665ASA50	MAXIM	获取价格	Fan Controller/Driver with Factory- Programmed Temperature Thresholds
MAX6665ASA50+	MAXIM	获取价格	Analog Circuit, 1 Func, BICMOS, PDSO8, 0.150 INCH, SOIC-8
MAX6665ASA50+T	MAXIM	获取价格	Analog Circuit, 1 Func, BICMOS, PDSO8, 0.150 INCH, SOIC-8
MAX6665ASA50-T	MAXIM	获取价格	暂无描述
MAX6665ASA55	MAXIM	获取价格	Fan Controller/Driver with Factory- Programmed Temperature Thresholds

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