DS1821S+TR

更新时间： 2024-01-27 19:22:00

品牌	Logo	应用领域
达拉斯 - DALLAS		监控
页数	文件大小	规格书
18页	455K
描述
Programmable Digital Thermostat and Thermometer

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技术参数
数据手册

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DS1821S+TR 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
包装说明：	TO-220, 3 PIN	Reach Compliance Code：	unknown
风险等级：	5.78	Is Samacsys：	N
外壳：	PLASTIC	JESD-609代码：	e0
安装特点：	THROUGH HOLE MOUNT	位数：	8
端子数量：	3	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：	1-WIRE INTERFACE	封装主体材料：	PLASTIC/EPOXY
封装等效代码：	SIP3,.1TB	封装形状/形式：	RECTANGULAR
电源：	3/5 V	传感器/换能器类型：	TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL
子类别：	Other Sensors	最大供电电压：	5.5 V
最小供电电压：	2.7 V	表面贴装：	NO
端子面层：	Tin/Lead (Sn/Pb)	端接类型：	SOLDER
Base Number Matches：	1

DS1821S+TR 数据手册

DS1821

ABSOLUTE MAXIMUM RATINGS*

Voltage on any pin relative to ground

Operating temperature

–0.5V to +7.0V

–55°C to +125°C

Storage temperature

Soldering temperature

–55°C to +125°C

See-JTD-020A Specification

*These are stress ratings only and functional operation of the device at these or any other conditions

above those indicated in the operation sections of this specification is not implied. Exposure to absolute

maximum rating conditions for extended periods of time may affect reliability.

DC ELECTRICAL CHARACTERISTICS

(-55°C to +125°C; V_DD=2.7V to 5.5V)

PARAMETER SYMBOL

CONDITION

MIN TYP

MAX

UNITS NOTES

Supply Voltage

V_DD

+2.7

+5.5

Thermometer

Error

t_ERR

±1

°C

2,3,4

0°C to +85°C

V_DD= 3.6V to 5.5V

-55°C to +125°C

V_DD= 3.6V to 5.5V

See Typical Curve (Figure 11)

DQ Logic Low

DQ Logic High

V_IL

V_IH

-0.3

+0.8

The lower of

+5.5

1,5

1,6

V_DD+ 0.3

Sink Current

I_L

V_DQ= 0.4V

V_DD= 3.6V to 5.5V

-55°C to +85°C

V_DD= 5V

Standby Current

Active Current

I_Q

I_DD

500

1000

μA

DQ Input

Current

I_DQ

µA

NOTES:

1. All voltages are referenced to ground.

2. Thermometer error reflects the sensor accuracy as tested during calibration.

3. See typical performance curve in Figure 11 for specification limits outside the 0°C to +85°C range.

4. For T<0°C, accuracy degrades by 0.5°C/V for V_DD<4.3V.

5. Logic low voltages are specified at a sink current of 4 mA.

6. Logic high voltages are specified at a source current of 1 mA.

7. Standby current is typically 5 μA at 125°C.

8. Active current refers to supply current during active temperature conversions or EEPROM writes.

9. DQ line is high (“hi-Z” state).

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