DS1830U

更新时间： 2024-11-20 22:50:47

品牌	Logo	应用领域
达拉斯 - DALLAS		电源电路电源管理电路
页数	文件大小	规格书
7页	277K
描述
Reset Sequence Pushbutton

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中文翻译

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技术参数
数据手册

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DS1830U 技术参数

生命周期：	Transferred	Reach Compliance Code：	unknown
风险等级：	5.68	Is Samacsys：	N
Base Number Matches：	1

DS1830U 数据手册

DS1830/A DS183

DS1830/A

Reset Sequence Pushbutton

www.maxim-ic.com

FEATURES

C 5V (DS1830) or 3.3V (DS1830A) power-on

reset

PIN ASSIGNMENT

C Excellent for systems that need power-on

resets in a consistent sequence

C Asserts resets during power transients

C Pushbutton reset input for system override

C Selectable reset timing

C Reduces need for discrete components

C Precision temperature-compensated voltage

reference

C 8-pin DIP, 8-pin SO, or space saving 8-pin

µSOP

C Operating temperature of -40°C to +85°C

C Open-drain, active-low inputs

PIN DESCRIPTION

- Pushbutton Reset Input

- Time Delay Select Input

- V_CCTolerance Select Input

- Ground

1 PBRST

2 TD

3 TOL

4 GND

8 V_CC

- Power Supply

- Reset 1 Output

7 RST1

6 RST2

5 RST3

- Reset 2 Output

- Reset 3 Output

DESCRIPTION

The DS1830 Reset Sequencer monitors the power supply for an in-tolerance condition and the pushbutton

reset input for a manual reset. First a precision temperature-compensated reference and comparator circuit

monitors the status of the power supply and when an out-of-tolerance condition is detected, an internal

power fail signal is generated that forces the reset lines to go to an active state. If the power supply

returns to an in-tolerance condition, RST1 will release followed by RST2 and finally RST3 . Sequencing of

resets allows for systems to power-up in an orderly manner providing superior reliability.

Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any

device may be simultaneously available through various sales channels. For information about device errata, click here: http://dbserv.maxim-

ic.com/errata.cfm.

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中文翻译

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