Datasheet > ASM1834/D

ASM1834/D

更新时间： 2024-11-25 03:07:27

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
11页	171K
描述
2-CHANNEL POWER SUPPLY SUPPORT CKT, UUC

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中文翻译

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数据手册

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ASM1834/D 数据手册

ASM1834, ASM1834A,

ASM1834D

Dual 5 V and 3.3 V mP

Power Supply Supervisor

with Manual Reset

http://onsemi.com

Description

The ASM1834 supervisors simultaneously monitor both 3.3 V and

5 V power sources and generate reset signals when either supply is out

of tolerance. When an out−of−tolerance condition is detected, the

output−reset signal of the affected supply becomes active and resets

the system microprocessor/microcontroller. On power−up and after

the supply voltage returns to an in−tolerance condition, the reset signal

remains active for approximately 350 ms. This allows the power

supply and system microprocessor to stabilize.

PDIP−8

NO SUFFIX

CASE 646AA

MICRO−8

U SUFFIX

CASE 846AA

SOIC−8

S SUFFIX

CASE 751BD

Tolerance levels are independently selectable for both supplies.

Tolerance options are 5% and 10% for the 5 V supply and 10% and

20% for the 3.3 V supply.

PIN CONFIGURATION

The ASM1834 and ASM1834D have push−pull reset output stages.

The ASM1834A reset outputs are open drain devices that can both be

connected to either 5 V or 3.3 V supply. The ASM1834 and

ASM1834A have active LOW reset outputs. The ASM1834D has

active HIGH reset outputs.

All devices can generate reset signals through an internally

debounced pushbutton reset input that affects both reset outputs.

All devices operate over the extended industrial temperature range.

Devices are available in 8−pin DIP, surface mount 8−pin SO and 8−Pin

MicroSO packages. Die are also available.

3.3V

ASM1834

ASM1834A

ASM1834D

5V RESET*

5V TOL

GND

3.3V RESET*

3.3V TOL

PBRST

(Top View)

*AS1834D reset outputs are active HIGH

(5V RESET and 3.3V RESET) Outputs are

open−drain for AS1834A.

Features

• Monitors 5 V and 3.3 V Supplies Simultaneously

• 5 V and 3.3 V Power−on Reset

• 350 ms Reset Time

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 11 of this data sheet.

• Debounced Pushbutton Reset Input

• Push−pull CMOS Output

ASM1834, ASM1834D

Eliminates External Pull−up Resistors

Active LOW (ASM1834), HIGH (ASM1834D)

• Open Drain Output

ASM1834A

Active LOW

Applications

• Microprocessors

• Selectable 5 V and 3.3 V Trip Point Tolerance

• Internal Power Drawn from Highest Input Voltage,

• PDAs, Hand−held PCs

• Embedded Controllers

• Telecommunication Systems

• Power Supplies

5 V or 3.3 V

• Precision Temperature−compensated Voltage Reference

and Comparator

• Low Cost Surface Mount SO, Compact MicroSO and

DIP Packages

• Wireless / Cellular Systems

• Networking Hardware

• Wide Operating Temperature: −40°C to +85°C

Publication Order Number:

August, 2011 − Rev. 3

ASM1834/D

12 3 4 5 6 7...11

中文翻译

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与ASM1834/D相关器件

型号	品牌	获取价格	描述	数据表
ASM1834A	ALSC	获取价格	Dual 5V and 3.3V uP Power Supply Supervisor with Manual Reset
ASM1834A	PULSECORE	获取价格	Dual 5V and 3.3V μP Power Supply Supervisor w
ASM1834A	ONSEMI	获取价格	2-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP8, PLASTIC, DIP-8
ASM1834A/D	PULSECORE	获取价格	Power Supply Support Circuit, Fixed, 2 Channel
ASM1834AF	PULSECORE	获取价格	Dual 5V and 3.3V μP Power Supply Supervisor w
ASM1834AF	ALSC	获取价格	Dual 5V and 3.3V uP Power Supply Supervisor with Manual Reset
ASM1834AF-T	ALSC	获取价格	Dual 5V and 3.3V uP Power Supply Supervisor with Manual Reset
ASM1834AF-T	ONSEMI	获取价格	2-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP8, LEAD FREE, PLASTIC, DIP-8
ASM1834AF-T	PULSECORE	获取价格	Power Supply Support Circuit, Fixed, 2 Channel, PDIP8, LEAD FREE, PLASTIC, DIP-8
ASM1834AS	ONSEMI	获取价格	2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, SOP-8

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