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参数资料
| 型号： | MAX6670AUB70+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 4/8页 |
| 文件大小： | 217K |
| 描述： | IC TEMP SENSOR REMOTE 10-UMAX |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 功能： | 风扇控制，温度监控器 |
| 传感器类型： | 外部 |
| 感应温度： | 70°C 分界点 |
| 精确度： | ±2.2°C（最小值） |
| 拓扑： | 风扇控制 |
| 输出类型： | 数字 |
| 输出警报： | 是 |
| 输出风扇： | 是 |
| 电源电压： | 3 V ~ 3.6 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 10-µMAX |
| 包装： | 管件 |
Detailed Description
The MAX6668/MAX6670 are simple fan controllers/dri-
vers that turn on an internal power transistor when the
sensed temperature of an external P-N junction
exceeds a factory-set threshold. By connecting a small
(up to +12V/250mA nominal) cooling fan to FANOUT, a
simple on/off fan-control system is created. Do not con-
nect the fan to a power supply of higher than 12V nomi-
nal, 15V maximum.
FANOUT Driver and FORCEON Controller
FANOUT Fan-Driver Output
FANOUT is an open-drain output that sinks greater than
250mA of current to turn on the fan, either when the fan
trip threshold is exceeded or the fan is forced on by dri-
ving FORCEON low.
FORCEON Fan-Control Input
Drive FORCEON low to turn on the fan when the
MAX6670s remote-sensing junction temperature is less
than the fan trip threshold temperature. This overrides
the internal control circuitry and allows for an external
device to activate the fan.
Overtemperature Alarm Outputs
WARN Output (MAX6670 Only)
WARN is an active-low, open-drain digital output that
indicates when the external P-N junctions temperature
exceeds 15癈 above the fan trip threshold. The WARN
output serves as a warning that the system temperature
has continued to rise well above the fan activation tem-
perature.
OT Output (MAX6670 Only)
OT is an active-low, open-drain digital output that indi-
cates when the external P-N junctions temperature
exceeds 30癈 above the fan trip threshold. OT serves
as a thermal shutdown output to the system in case of
excessive temperature rise.
Hysteresis Input
The temperature comparator has hysteresis to prevent
small temperature changes near the threshold temper-
ature from causing the fan to turn on and off repeatedly
over short periods of time. The FANOUT pin goes
active and powers the fan when the external P-N junc-
tions temperature exceeds the factory-programmed
Remote Temperature Switches with Integrated
Fan Controller/Driver
4 _______________________________________________________________________________________
Pin Description
PIN
MAX6668
MAX6670
NAME
FUNCTION
1
1
PGND
Power Ground. PGND is the power ground for the FANOUT power MOSFET switch.
2
5
FORCEON
Fan-Control Input. Drive FORCEON high for normal operation. Drive FORCEON low
to force fan on.
3
3
DXP
Current Source Positive Input. Connect to the anode of the external diode-
connected transistor. Do not leave DXP floating. Connect a 2200pF capacitor
between DXP and DXN for noise filtering.
4
4
DXN
Current Sink Negative Input. Connect to the cathode of the external diode-
connected transistor. DXN is internally biased to a diode voltage drop.
5, 7
7
GND
Ground
6
8
V
DD
Positive Power Supply
8
10
FANOUT
Fan-Drive Output. FANOUT is an open-drain power MOSFET that sinks up to 250mA
current to turn on the fan when the sensed temperature exceeds the fan trip
threshold or the fan is forced on by driving FORCEON low.
2
WARN
Temperature Warning Output. WARN is an open-drain output that goes low when
the sensed junction temperature is 15癈 higher than the fan trip threshold.
6
OT
Overtemperature Output. OT is an open-drain output that goes low when the sensed
junction temperature is 30癈 higher than the fan trip threshold.
9
HYST
Hysteresis Control Input. HYST is a three-level logic input for controlling the fan-
drive comparators hysteresis. Connect HYST to GND for 4癈 hysteresis, to V
DD
for
12癈 hysteresis, or leave floating for 8癈 hysteresis.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6670AUB70+ | 功能描述:板上安装温度传感器 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 |
| MAX6670AUB70+T | 功能描述:板上安装温度传感器 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 |
| MAX6670AUB70-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 |
| MAX6670AUB75 | 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 |
| MAX6672AXK | 制造商:Maxim Integrated Products 功能描述:PWM OUTPUT TEMPERATURE SENSORS IN S - Rail/Tube |
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