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19-2459; Rev 2; 4/03
Dual-Output Remote-Junction
Temperature Switches
General Description
MAX6685/MAX6686 are dual-output temperature switches
that use an external diode-connected transistor as a sens-
ing element. These devices have two logic outputs (T HIGH
and T LOW ). T HIGH asserts a logic signal when the remote
temperature crosses the factory-programmed, +120°C, or
+125°C upper trip threshold. T LOW is asserted when the
remote temperature exceeds the lower threshold, which is
controlled by pins S1 and S2. The lower thresholds are
available in two ranges in 5°C increments. The two ranges
are +40°C to +80°C and +75°C to +115°C. Hysteresis for
both outputs to be deasserted is typically 5°C.
T HIGH is an open-drain, active-low output for both the
MAX6685 and the MAX6686. T LOW is a CMOS push-pull,
active-high output for the MAX6685 and is an open-drain,
active-low output for the MAX6686. They are available in
a space-saving 8-pin μMAX package.
Applications
Features
o Pin-Programmed Lower Temperature Threshold
from +40°C to +80°C or +75°C to +115°C
(5°C Increments)
o Preset Upper Threshold: +120°C or +125°C
o Open-Drain, Active-Low Output for Upper
Temperature Alarm
o CMOS Push-Pull, Active-High or Open-Drain,
Active-Low Output for Lower Temperature Alarm
o 1.5°C Accuracy
o 3.0V to 5.5V, 200μA Supply
o 8-Pin μMAX Package
CPU Temperature
Multichip Modules
Protection
Fan Control
FPGA Temperature
Protection
Pin Configurations appear at end of data sheet.
Ordering Information
PART
MAX6685 AU40L
MAX6685AU40H
MAX6685AU75L
MAX6685AU75H
MAX6686 AU40L
MAX6686AU40H
MAX6686AU75L
MAX6686AU75H
T LOW
OUTPUT
Push-pull, active high
Push-pull, active high
Push-pull, active high
Push-pull, active high
Open drain, active low
Open drain, active low
Open drain, active low
Open drain, active low
T LOW TRIP
RANGE (0 ° C)
+40 ° C to +80 ° C
+40 ° C to +80 ° C
+75 ° C to +115 ° C
+75 ° C to +115 ° C
+40 ° C to +80 ° C
+40 ° C to +80 ° C
+75 ° C to +115 ° C
+75 ° C to +115 ° C
T HIGH TRIP
THRESHOLD (0 ° C)
+120 ° C
+125 ° C
+120 ° C
+125 ° C
+120 ° C
+125 ° C
+120 ° C
+125 ° C
PIN-PACKAGE
8 μMAX
8 μMAX
8 μMAX
8 μMAX
8 μMAX
8 μMAX
8 μMAX
8 μMAX
Typical Operating Circuits
3.3V
TO SYSTEM
SHUTDOWN
3.3V
CPU
DXP
V DD
T HIGH
12V
CPU
DXP
V DD
T HIGH
TO SYSTEM
SHUTDOWN
C S
DXN
MAX6685
C S
DXN
MAX6686
S1
S2
T LOW
N
S1
S2
T LOW
TO CLOCK
THROTTLE
GND
GND
CONTROL
________________________________________________________________ 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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相关代理商/技术参数
MAX6687AU40H 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
MAX6687AU40H+ 功能描述:板上安装温度传感器 Local/Remote Temperature Switch 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
MAX6687AU40H+T 功能描述:板上安装温度传感器 Local/Remote Temperature Switch 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
MAX6687AU40H-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
MAX6687AU40L 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
MAX6687AU40L+ 功能描述:板上安装温度传感器 Local/Remote Temperature Switch 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
MAX6687AU40L+T 功能描述:板上安装温度传感器 Local/Remote Temperature Switch 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
MAX6687AU40L-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