Datasheet > MAX6684

MAX6684

更新时间： 2023-12-20 18:46:13

品牌	Logo	应用领域
亚德诺 - ADI		开关电源开关风扇
页数	文件大小	规格书
7页	168K
描述
风扇失效检测器，集成电源开关

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数据手册

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MAX6684 数据手册

19-2306; Rev 0; 1/02

Fan-Failure Detector with Integrated

Power Switch

General Description

Features

The MAX6684 is an integrated fan-failure detector that

detects when a fan exhibits excessive underspeed or a

locked rotor. This device is especially well suited for criti-

cal systems where no fan control, or simple on/off control

is desired. The MAX6684 detects fan failure by evaluat-

ing fluctuations in current at the low side of the fan; no

tachometer signal is necessary. The output of the device,

FAIL, is an active-low, open-drain alarm. The MAX6684

can also be used to switch the fan on or off, based on

the state of a logic-level input, OFF. This device can be

used with fans rated at up to 24V and 250mA. The

MAX6684 is available in an 8-pin SO package, and is

specified for operation from -40°C to +85°C.

ꢀ Dedicated Fan-Failure Detector

ꢀ Works with Ordinary 2-Wire Fans

ꢀ No Fan Tachometer Output Required

ꢀ No Software Development Required

ꢀ No Analog Circuit Design Required

ꢀ Logic-Level Fan Driver Control

ꢀ Works with Fans Rated Up to 24V/250mA

Applications

Desktop PCs

Ordering Information

Notebooks

PART

TEMP RANGE

PIN-PACKAGE

Networking Equipment

Telecommunications

Industrial Applications

MAX6684ESA

-40°C to +85°C

8 SO

Typical Operating Circuit

Pin Configuration

3.3V

TOP VIEW

12V

10k

SENSE

PGND

OFF

FC+

FAIL

GND

FC-

MAX6684

FAIL

0.1 F

1 F

FC+

FC-

SENSE

PGND

GND

0.1 F

________________________________________________________________ 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.

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与MAX6684相关器件

型号	品牌	获取价格	描述	数据表
MAX6684ESA	MAXIM	获取价格	Fan-Failure Detector with Integrated Power Switch
MAX6684ESA+	ROCHESTER	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, MS-012AA, SOIC-8
MAX6684ESA+	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, BICMOS, PDSO8, MS-012AA, SOIC-8
MAX6684ESA+T	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, BICMOS, PDSO8, MS-012AA, SOIC-8
MAX6684ESA-T	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, BICMOS, PDSO8, MS-012AA, SOIC-8
MAX6685	MAXIM	获取价格	Dual-Output Remote-Junction Temperature Switches
MAX6685AU40H	MAXIM	获取价格	Dual-Output Remote-Junction Temperature Switches
MAX6685AU40H-T	MAXIM	获取价格	Analog Circuit, 1 Func, BICMOS, PDSO8, 3 X 3 MM, MO-187CAA, MICRO, SOP-8
MAX6685AU40L	MAXIM	获取价格	Dual-Output Remote-Junction Temperature Switches
MAX6685AU75H	MAXIM	获取价格	Dual-Output Remote-Junction Temperature Switches