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| 型号： | DS1775R4+T&R |
| 厂商： | Maxim Integrated |
| 文件页数： | 2/14页 |
| 文件大小： | 394K |
| 描述： | IC THERMOM/STAT DIG 100 SOT-23-5 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 3,000 |
| 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，比较器，寄存器库 |
| 输出类型： | I²C?/SMBus? |
| 输出警报： | 是 |
| 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： | SC-74A，SOT-753 |
| 供应商设备封装： | SOT-23-5 |
| 包装： | 带卷 (TR) |
DS1775
2 of 14
Table 1. Detailed Pin Description
PIN
NAME
FUNCTION
1
SCL
Clock Input/Output for 2-Wire Serial Communication Port. This input should
be tied to GND for stand-alone thermostat o eration.
2
GND
Ground
3
O.S.
Thermostat Output. Open-drain output becomes active when temperature
exceeds T
OS
. Device configuration defines means to clear overtemperature
state.
4
V
DD
Su l Volta e 2.7V to 5.5V In ut Power Pin
5
SDA
Data Input/Output for 2-Wire Serial Communication Port. In the stand-alone
thermostat mode this in ut selects h steresis.
DETAILED DESCRIPTION
Figure 1 shows a block diagram of the DS1775. The DS1775 consists of five major components:
1. Precision temperature sensor
2. Analog-to-digital converter
3. 2-wire interface electronics
4. Data registers
5. Thermostat comparator
The factory-calibrated temperature sensor requires no external components. Upon power-up, the DS1775
begins temperature conversions with the default resolution of 9 bits (0.5癈 resolution). The host can
periodically read the value in the temperature register, which contains the last completed conversion. As
conversions are performed in the background, reading the temperature register does not affect the
conversion in progress.
In power-sensitive applications, the user can put the DS1775 into a shutdown mode, under which the
sensor complete and store the conversion in progress and revert to a low-power standby state. In
applications where small incremental temperature changes are critical, the user can change the conversion
resolution from 9 bits to 10, 11, or 12. Each additional bit of resolution approximately doubles the
conversion time. This is accomplished by programming the configuration register. The configuration
register defines the conversion state, thermometer resolution/conversion time, active state of the
thermostat output, number of consecutive faults to trigger an alarm condition, and the method to
terminate an alarm condition.
The user can also program overtemperature (T
OS
) and undertemperature (T
HYST
) setpoints for thermostatic
operation. The power-up state of T
OS
is +80癈 and that for T
HYST
is +75癈. The result of each
temperature conversion is compared with the T
OS
and T
HYST
setpoints. The DS1775 offers two modes for
temperature control, the comparator mode and the interrupt mode. This allows the user the flexibility to
customize the condition that would generate and clear a fault condition. Regardless of the mode chosen,
the O.S. output becomes active only after the measured temperature exceeds the respective trip-point a
consecutive number of times; the number of consecutive conversions beyond the limit to generate an O.S.
is programmable. The power-up state of the DS1775 is in the comparator mode with a single fault
generating an active O.S.
Digital data is written to/read from the DS1775 via a 2-wire interface, and all communication is MSb
first.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1775R4-U | 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 |
| DS1775R5/T&R | 制造商:Maxim Integrated Products 功能描述:IC THERMOM/STAT DIG 101 SOT-23-5 |
| DS1775R5/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 |
| DS1775R5+T&R | 制造商:Maxim Integrated Products 功能描述:TEMP SENSOR DGTL 2-WIRE 5PIN SOT-23 - Tape and Reel 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:IC THERMOM/STAT DIG 101 SOT-23-5 制造商:Maxim Integrated Products 功能描述:Board Mount Temperature Sensors Digital Thermometer & Thermostat |
| DS1775R5+T&R | 功能描述:板上安装温度传感器 Digital Thermometer & Thermostat 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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