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| 型号： | DS75U |
| 厂商： | Maxim Integrated |
| 文件页数： | 8/14页 |
| 文件大小： | 183K |
| 描述： | IC WATCHDOG THERM 2-W 3/5V 8MSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 功能： | 温度计，恒温计 |
| 传感器类型： | 内部 |
| 感应温度： | -55°C ~ 125°C |
| 精确度： | ±3°C（最小值） |
| 拓扑： | ADC（三角积分型），比较器，寄存器库 |
| 输出类型： | I²C?/SMBus? |
| 输出警报： | 无 |
| 输出风扇： | 无 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -55°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-uMAX |
| 包装： | 管件 |
DS75
8 of 14
compared to the values in the T
OS
and T
HYST
registers, and then O.S. is updated based on the result of the
comparison and the operating mode. The number of T
OS
and T
HYST
bits used during the thermostat
comparison is equal to the conversion resolution set by the R1 and R0 bits in the configuration register.
For example, it the resolution is 9 bits, only the 9 MSbs of T
OS
and T
HYST
will be used by the thermostat
comparator.
The active state of the O.S. output can be changed via the POL bit in the configuration register. The
power-up default is active low.
If the user does not wish to use the thermostat capabilities of the DS75, the O.S. output should be left
floating. Note that if the thermostat is not used, the T
OS
and T
HYST
registers can be used for general
storage of system data.
Comparator Mode When the thermostat is in comparator mode, O.S. can be programmed to operate
with any amount of hysteresis. The O.S. output becomes active when the measured temperature exceeds
the T
OS
value a consecutive number of times as defined by the F1 and F0 fault tolerance (FT) bits in the
configuration register. O.S. then stays active until the first time the temperature falls below the value
stored in T
HYST
. Putting the device into shutdown mode does not clear O.S. in comparator mode.
Thermostat comparator mode operation with FT = 2 is illustrated in Figure 4.
Interrupt Mode In interrupt mode, the O.S. output first becomes active when the measured
temperature exceeds the T
OS
value a consecutive number of times equal to the FT value in the
configuration register. Once activated, O.S. can only be cleared by either putting the DS75 into shutdown
mode or by reading from any register (temperature, configuration, T
OS
, or T
HYST
) on the device. Once
O.S. has been deactivated, it will only be reactivated when the measured temperature falls below the
T
HYST
value a consecutive number of times equal to the FT value. Again, O.S can only be cleared by
putting the device into shutdown mode or reading any register. Thus, this interrupt/clear process is
cyclical between T
OS
and T
HYST
events (i.e, T
OS
, clear, T
HYST
, clear, T
OS
, clear, T
HYST
, clear, etc.).
Thermostat interrupt mode operation with FT = 2 is illustrated in Figure 4.
Figure 4. O.S. OUTPUT OPERATION EXAMPLE
In this example the DS75
is configured to have a
fault tolerance of 2.
O.S. Output - Comparator Mode
Conversions
Inactive
Active
Temperature
T
OS
T
HYST
Inactive
Active
O.S. Output - Interrupt Mode
Assumes a read
has occurred
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS75U/T&R | 制造商:Maxim Integrated Products 功能描述:2 WIRE THERMAL WATCHDOG MSOP T&R - Tape and Reel |
| DS75U/T&R | 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 |
| DS75U+ | 功能描述:板上安装温度传感器 Digital 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 |
| DS75U+ | 制造商:Maxim Integrated Products 功能描述:IC TEMP SENSOR 12BIT ?2 AX-8 |
| DS75U+T&R | 制造商:Maxim Integrated Products 功能描述:TEMP SENSOR DGTL 2-WIRE 8PIN UMAX - Cut TR (SOS) 制造商:Maxim Integrated Products 功能描述:TEMP SENSOR DGTL 2-WIRE 8PIN UMAX - Tape and Reel 制造商:Maxim Integrated Products 功能描述:Maxim Integrated DS75U+T&R Temperature Sensors 制造商:Maxim Integrated Products 功能描述:IC THERMOMETER/STAT DIG 8-MSOP |
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