Datasheet > DS1775R4&R

DS1775R4&R

更新时间： 2024-01-03 20:37:21

品牌	Logo	应用领域
美信 - MAXIM		输出元件传感器换能器
页数	文件大小	规格书
17页	408K
描述
Serial Switch/Digital Sensor, 9 Bit(s), 2Cel, Rectangular, Surface Mount, LEAD FREE, SOT-23, 5 PIN

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DS1775R4&R 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Active	Reach Compliance Code：	compliant
风险等级：	5.72	最大精度（摄氏度）：	2 Cel
JESD-609代码：	e0	安装特点：	SURFACE MOUNT
位数：	9	最大工作电流：	1 mA
最高工作温度：	125 °C	最低工作温度：	-55 °C
输出接口类型：	2-WIRE INTERFACE	封装形状/形式：	RECTANGULAR
传感器/换能器类型：	TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL	最大供电电压：	5.5 V
最小供电电压：	2.7 V	表面贴装：	YES
端子面层：	Tin/Lead (Sn/Pb)	端接类型：	SOLDER
Base Number Matches：	1

DS1775R4&R 数据手册

DS1775

address is currently selected. Please refer to the “2–Wire Serial Data Bus” section for details of the 2–

wire bus protocol.

Configuration Register Programming

The configuration register is accessed if the DS1775 pointer is currently set to the 01h location. Writing

to or reading from the register is determined by the R/W bit of the 2–wire control byte (See “2–wire

Serial Data Bus” section). Data is read from or written to the configuration register MSb first. The format

of the register is illustrated below in Figure 3. The effect each bit has on DS1775 functionality is

described below along with the power–up state of the bit. The user has read/write access to all bits in the

configuration register. The entire register is volatile, and thus it will power–up in the default state.

Configuration/Status Register Figure 3

POL

LSb

MSb

SD = Shutdown bit. If SD is “0”, the DS1775 will continuously perform temperature conversions and

store the last completed result in the thermometer register. If SD is changed to “1”, the conversion in

progress will be completed and stored; then the device will revert to a low–power standby mode. The

O.S. output will be cleared if the device is in the interrupt mode and remain unchanged in the comparator

mode. The 2–wire port remains active. The power–up default state is “0” (continuous conversion mode).

TM = Thermostat mode. If TM=“0”, the DS1775 is in the comparator mode. TM=“1” sets the device to

the interrupt mode. See “OPERATION–Thermostat Control” section for a description of the difference

between the two modes. The power–up default state of the TM bit is “0” (comparator mode).

POL = O.S. Polarity Bit. If POL = “1”, the active state of the O.S. output will be high. A “0” stored in

this location sets the thermostat output to an active low state. The user has read/write access to the POL

bit, and the power–up default state is “0” (active low).

F0, F1 = O.S. Fault Tolerance bits. The fault tolerance defines the number of consecutive conversions

returning a temperature beyond limits is required to set the O.S. output in an active state. This may be

necessary to add margin in noisy environments. Table 4 below defines the four settings. The DS1775 will

power up with F0=F1=“0”, such that a single occurrence will trigger a fault.

Fault Tolerance Configuration Table 4

F0 Consecutive conversions beyond limits to generate fault

R0, R1 = Thermometer resolution bits. Table 5 defines the resolution of the digital thermometer, based

on the settings of these two bits. There is a direct trade-off between resolution and conversion time, as

depicted in the AC Electrical Characteristics. The default state is R0="0" and R1="0" (9–bit conversions).

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与DS1775R4&R相关器件

型号	品牌	描述	获取价格	数据表
DS1775R4/T&R	MAXIM	Serial Switch/Digital Sensor, 12 Bit(s), 2Cel, Rectangular, 5 Pin, Surface Mount, SOT-23,	获取价格
DS1775R4+U	MAXIM	Serial Switch/Digital Sensor, 12 Bit(s), 2Cel, Rectangular, 5 Pin, Surface Mount, SOT-23,	获取价格
DS1775R5	MAXIM	Serial Switch/Digital Sensor, 9 Bit(s), 2Cel, Rectangular, Surface Mount, LEAD FREE, SOT-2	获取价格
DS1775R5+	MAXIM	Serial Switch/Digital Sensor, 12 Bit(s), 2Cel, Rectangular, Surface Mount, ROHS COMPLIANT,	获取价格
DS1775R5+T&R	ROCHESTER	DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 2Cel, RECTANGULAR, SURFACE MOUNT, ROHS COMPLIANT, SO	获取价格
DS1775R5+U	MAXIM	Serial Switch/Digital Sensor, 12 Bit(s), 2Cel, Rectangular, 5 Pin, Surface Mount, SOT-23,	获取价格

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