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参数资料
| 型号： | MAX6661AEE+ |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 模拟信号调理 |
| 英文描述： | Remote Temperature-Controlled Fan-Speed Regulator with SPI-Compatible Interface |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO16 |
| 封装： | 0.150 INCH, 0.025 INCH PITCH, QSOP-16 |
| 文件页数： | 1/19页 |
| 文件大小： | 257K |
| 代理商： | MAX6661AEE+ |
General Description
The MAX6661 is a remote temperature sensor and fan-
speed regulator that provides complete closed-loop fan
control. The remote temperature sensor is typically a
common-collector PNP, such as a substrate PNP of a
microprocessor, or a diode-connected transistor, typi-
cally a low-cost, easily mounted 2N3904 NPN type or
2N3906 PNP type.
The device also incorporates a closed-loop fan con-
troller that regulates fan speed with tachometer feed-
back. The MAX6661 compares temperature data to a
fan threshold temperature and gain setting, both pro-
grammed over the SPI bus by the user. The result is
automatic fan control that is proportional to the remote-
junction temperature. The temperature feedback loop
can be broken at any time for system control over the
speed of the fan.
Fan speed is voltage controlled as opposed to PWM
controlled, greatly reducing acoustic noise and maxi-
mizing fan reliability. An on-chip power device drives
fans rated up to 250mA.
Temperature data is updated every 500ms and is read-
able at any time over the SPI interface. The MAX6661 is
accurate to 1°C (max) when the remote junction is
between +60°C to +100°C. Data is formatted as a 10-
bit + sign word with 0.125°C resolution.
The MAX6661 is specified between -40°C to +125°C
and is available in a 16-pin QSOP package.
Applications
Telecom Systems
Servers
Workstations
Electronic Instruments
Features
o Integrated Thermal Measurement and Fan
Regulation
o Programmable Fan Threshold Temperature
o Programmable Temperature Range for Full-Scale
Fan Speed
o Accurate Closed-Loop Fan-Speed Regulation
o On-Chip Power Device Drives Fans Rated
Up to 250mA
o Programmable Under/Overtemperature Alarms
o SPI-Compatible Serial Interface
o ±1°C (+60°C to +100°C) Thermal-Sensing
Accuracy
MAX6661
Remote Temperature-Controlled Fan-Speed
Regulator with SPI-Compatible Interface
________________________________________________________________ Maxim Integrated Products
1
Ordering Information
1
F
5k
FAN
12V
2200pF
PENTIUM
SDIN
SC
ALERT
OVERT
SPI CLOCK
SPI DATA IN
DOUT
SPI DATA OUT
CS
SPI CHIP SELECT
INTERRUPT
TO
P
TO SYSTEM
SHUTDOWN
VFAN
PGND
0.1
F
3V TO 5.5V
50
VCC
TACH IN
FAN
DXP
DXN
AGND
10k
EACH
MAX6661
Typical Operating Circuit
19-2337; Rev 0; 1/02
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.
PART
TEMP RANGE
PIN-PACKAGE
MAX6661AEE
-40
°C to +125°C
16 QSOP
Pin Configuration appears at end of data sheet.
SPI is a trademark of Motorola, Inc.
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PDF描述 |
|---|---|
| MAX6661AEE+T | Remote Temperature-Controlled Fan-Speed Regulator with SPI-Compatible Interface |
| MAX6663AEE+T | Temperature Monitors and PWM Fan Controllers |
| MAX6664AEE+ | Temperature Monitors and PWM Fan Controllers |
| MAX6680MEE+T | ±1°C Fail-Safe Remote/Local Temperature Sensors with SMBus Interface |
| MAX6683AUB+ | Temperature Sensor and System Monitor in a 10-Pin µMAX |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6661AEE+ | 功能描述:板上安装温度传感器 Remote-Junction Fan-Speed Regulator RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| MAX6661AEE+T | 功能描述:板上安装温度传感器 Remote-Junction Fan-Speed Regulator RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| MAX6661AEE-T | 功能描述:板上安装温度传感器 RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| MAX6662EVKIT+ | 功能描述:板上安装温度传感器 MAX6662 Eval Kit RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| MAX6662MSA | 功能描述:板上安装温度传感器 RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
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