DS1818 3.3V、经济型复位芯片，带有手动复位按钮

概述

The DS1813 (5V) and DS1818 (3.3V) EconoResets are simple three-pin voltage monitors and power-on resets that hold reset for 150ms for stabilization after power returns to tolerance. The voltage monitor uses precision temperature reference and comparator circuits that detect out-of-tolerance conditions and generate an active low reset. The DS1818 has an open-drain output with an internal 5.5kΩ pull-up resistor for use in a wired-AND circuit. The DS1818 also monitors a pushbutton on the reset output, generating a reset when the pushbutton is released.

EconoResets replace discrete components and save space, particularly in the new SOT-23 package. They can benefit any system that requires reliable processor operation, especially consumer products like printers, HVAC, energy management, cellular telephones, PDAs, and set-top boxes.

关键特性

Voltage monitor for power-fail detection
Monitors pushbutton for external over-ride
Active low reset output
150ms pause for stabilization
Efficient open-drain output with internal 5.5kΩ pull-up resistor
Maximum quiescent current of 35µA
Operating ranges:
- 3.3V with 5%, 10% or 20% tolerance
- -40°C to +85°C

Key Specifications: Supervisors (1 Monitored Voltage)

Part Number

Reset Threshold Range (V)

Active-Low Reset Output

Min. Reset Timeout Range

Watchdog Feature

Supervisor Features

Reset Thresh. Acc. (% @+25°C)

Max. I_CC (µA)

Price^**

DS1818

2.5 to 3.3

Open Drain

85ms to 300ms

No Watchdog

Manual Reset

2.5

$0.40 @ 1k

See All Supervisors (1 Monitored Voltage) (270)

Notes:
^**This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

定购信息

注：

购买产品，请访问：http://www.maxim-ic.com.cn/sales。
没有找到您所需要的器件？请咨询我们的应用工程师。我们的专家会帮助您找到合适的器件，通常在一个工作日内回复。
型号尾缀：T或T&R = 卷带; + = RoHS/无铅; # = RoHS/无铅豁免权。详细信息请参考：完整的数据资料或型号命名规则。
* “封装代码/变更”提供产品使用的变更信息。注意：型号尾缀中的“+”、“#”和“-”表示器件的RoHS状况，封装图上可能显示不同的尾缀字符。

器件： 1-24 of 24

DS1818

注

免费样品

采购

封装：	类型引脚占位面积
	封装图编码/变更 *

温度

RoHS/无铅？
材料分析

DS1818R-10+T&R

3.3V-10%

SOT；3引脚；8mm²
封装图： 21-0051 (PDF)
Land Pattern: 90-0179 (PDF)
使用封装码/变更：U3+4*

-40°C至+85°C

参考数据资料
材料分析

DS1818R-20+T&R

3.3V-20%

SOT；3引脚；8mm²
封装图： 21-0051 (PDF)
Land Pattern: 90-0179 (PDF)
使用封装码/变更：U3+4*

-40°C至+85°C

参考数据资料
材料分析

DS1818R-5+T&R

3.3V-5%

SOT；3引脚；8mm²
封装图： 21-0051 (PDF)
Land Pattern: 90-0179 (PDF)
使用封装码/变更：U3+4*

-40°C至+85°C

参考数据资料
材料分析

DS1818R-10-U+

SOT；3引脚；8mm²
封装图： 21-0051 (PDF)
Land Pattern: 90-0179 (PDF)
使用封装码/变更：U3+4*

-40°C至+85°C

RoHS/无铅：无铅
材料分析

DS1818R-20-U+

SOT；3引脚；8mm²
封装图： 21-0051 (PDF)
Land Pattern: 90-0179 (PDF)
使用封装码/变更：U3+4*

-40°C至+85°C

RoHS/无铅：无铅
材料分析

DS1818R-5-U+

SOT；3引脚；8mm²
封装图： 21-0051 (PDF)
Land Pattern: 90-0179 (PDF)
使用封装码/变更：U3+4*

-40°C至+85°C

RoHS/无铅：无铅
材料分析

DS1818R-5/T&R

3.3V-5%