Datasheet > MAX6615_08

MAX6615_08

更新时间： 2024-09-25 12:47:19

品牌	Logo	应用领域
美信 - MAXIM		风扇控制器
页数	文件大小	规格书
20页	191K
描述
Dual-Channel Temperature Monitors and Fan-Speed Controllers with Thermistor Inputs

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MAX6615_08 数据手册

19-3713; Rev 2; 10/08

Dual-Channel Temperature Monitors and

Fan-Speed Controllers with Thermistor Inputs

5/MAX16

General Description

Features

The MAX6615/MAX6616 monitor two temperature chan-

nels, either the internal die temperature and the temper-

ature of an external thermistor, or the temperatures of

two external thermistors. The temperature data controls

a PWM output signal to adjust the speed of a cooling

fan, thereby minimizing noise when the system is run-

ning cool, but providing maximum cooling when power

dissipation increases. The fans’ tachometer output sig-

nals are monitored by the MAX6615/MAX6616 to detect

fan failure. If a fan failure is detected, the FAN_FAIL

output is asserted.

o Two Thermistor Inputs

o Two Open-Drain PWM Outputs for Fan-Speed

Control

o Local Temperature Sensor

o Six GPIOs (MAX6616)

o Programmable Fan-Control Characteristics

o Controlled PWM Rate-of-Change Ensures

Unobtrusive Fan-Speed Adjustments

o Fail-Safe System Protection

o OT Output for Throttling or Shutdown

The 2-wire serial interface accepts standard system

management bus (SMBus^TM) write byte, read byte,

send byte, and receive byte commands to read the

temperature data and program the alarm thresholds.

The programmable alarm output can be used to gener-

ate interrupts, throttle signals, or overtemperature shut-

down signals.

o Nine Different Pin-Programmable SMBus

Addresses

o 16-Pin and 24-Pin QSOP Packages

The MAX6616 features six GPIOs to provide additional

flexibility. All of the GPIOs power-up as inputs, with the

exception of GPIO0, which powers up as either an input

or an output as determined by connecting the PRESET

Ordering Information

pin to ground or V

PART

TEMP RANGE

-40°C to +125°C

PIN-PACKAGE

16 QSOP

MAX6615AEE

MAX6616AEG

The MAX6616 is available in a 24-pin QSOP package,

while the MAX6615 is available in a 16-pin QSOP pack-

age. Both devices operate from a single-supply voltage

range of 3.0V to 5.5V, have operating temperature

ranges of -40°C to +125°C, and consume just 500µA of

supply current.

24 QSOP

Functional Diagram

FAN_FAIL

Applications

Desktop Computers

Servers

TACH1

PWM

GENERATOR

AND TACH

COUNTER

TH1

REF

TH2

THERMISTORS

AND LOCAL

TEMP SENSOR

PWM1

TACH2

PWM2

Power Supplies

Networking Equipment

Workstations

SMBus

INTERFACE

AND

SCL

SDA

SMBus is a trademark of Intel Corp.

LOGIC

GPIO0*

GPIO5*

PRESET*

REGISTERS

Typical Application Circuits and Pin Configurations appear at

end of data sheet.

MAX6615

MAX6616

GND

ADD0

*MAX6616 ONLY

ADD1

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...20

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与MAX6615_08相关器件

型号	品牌	获取价格	描述	数据表
MAX6615AEE	MAXIM	获取价格	Dual-Channel Temperature Monitors and Fan-Speed Controllers with Thermistor Inputs
MAX6615AEE+	MAXIM	获取价格	Serial Switch/Digital Sensor, 8 Bit(s), BICMOS, Rectangular, 16 Pin, Surface Mount, 0.150
MAX6615AEE-T	MAXIM	获取价格	Serial Switch/Digital Sensor, 8 Bit(s), BICMOS, Rectangular, 16 Pin, Surface Mount, 0.150
MAX6615AEG	MAXIM	获取价格	Dual-Channel Temperature Monitors and Fan-Speed Controllers with Thermistor Inputs
MAX6616AEG	MAXIM	获取价格	Dual-Channel Temperature Monitors and Fan-Speed Controllers with Thermistor Inputs
MAX6616AEG-T	MAXIM	获取价格	暂无描述
MAX6618	MAXIM	获取价格	PECI-to-I2C Translator
MAX6618	ADI	获取价格	PECI至I2C转换器
MAX6618_13	MAXIM	获取价格	PECI-to-I2C Translator
MAX6618AUB	MAXIM	获取价格	PECI-to-I2C Translator

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