DS1830AU Datasheet

IC型號：
DS1830AU
PDF描述：
Reset Sequence Pushbutton
文件大小：
277.75KB
PDF頁數(shù)：
7頁
芯片廠家：
DALLAS

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DS1830/A DS183

DS1830/A

Reset Sequence Pushbutton

www.maxim-ic.com

FEATURES

摟

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

reset

Excellent for systems that need power-on

resets in a consistent sequence

Asserts resets during power transients

Pushbutton reset input for system override

Selectable reset timing

Reduces need for discrete components

Precision temperature-compensated voltage

reference

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

碌SOP

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

Open-drain, active-low inputs

PIN ASSIGNMENT

PIN DESCRIPTION

PBRST

2 TD

3 TOL

4 GND

8 V

RST1

RST2

RST3

- Pushbutton Reset Input

- Time Delay Select Input

- V

Tolerance Select Input

- Ground

- Power Supply

- Reset 1 Output

- 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.

1 of 7

060303

制造商
Maxim Integrated Products
監(jiān)測電壓數(shù)
1
監(jiān)測電壓
1 V to 5.5 V
欠電壓閾值
2.98 V
過電壓閾值
3.15 V
輸出類型
Active Low, Open Drain
人工復(fù)位
Resettable
監(jiān)視器
No Watchdog
電池備用開關(guān)
No Backup
上電復(fù)位延遲（典型值）
100 ms
Supply Voltage - Max
5.5 V
Supply Voltage - Min
1 V
電源電流（典型值）
25 uA
最大工作溫度
+ 85 C
安裝風(fēng)格
SMD/SMT
封裝 / 箱體
uMAX
最小工作溫度
- 40 C
功率失效檢測
Yes

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