5秒后页面跳转
捷配首页

Datasheet > 电源电路 > 电源管理电路> ASM802MESA
ASM802MESA PDF预览

ASM802MESA

更新时间： 2024-11-23 22:39:15
品牌 Logo 应用领域
ALSC 电池开关光电二极管监控
页数 文件大小 规格书
13页 323K
描述
UP Power Supply Supervisor With Battery Backup Switch

阅读下载

中文翻译

获取价格

ASM802MESA 数据手册

 浏览型号ASM802MESA的Datasheet PDF文件第2页浏览型号ASM802MESA的Datasheet PDF文件第3页浏览型号ASM802MESA的Datasheet PDF文件第4页浏览型号ASM802MESA的Datasheet PDF文件第5页浏览型号ASM802MESA的Datasheet PDF文件第6页浏览型号ASM802MESA的Datasheet PDF文件第7页 
ASM690A / 692A  
ASM802L / 802M  
ASM805L  
October 2003  
rev 1.0  
µP Power Supply Supervisor With Battery Backup Switch  
General Description  
Applications  
The AS690A / AS692A / AS802L / AS802M / AS805L offers  
complete single chip solutions for power supply monitoring and  
control battery functions in microprocessor systems. Each  
device implements four functions: Reset control, watchdog  
monitoring, battery-backup switching and power-failure  
monitoring. In addition to microprocessor reset under power-up  
and power-down conditions, these devices provide battery-  
backup switching to maintain control in power loss and brown-  
out situations. Additional monitoring capabilities can provide an  
early warning of unregulated power supply loss before the  
voltage regulator drops out. The important features of these  
four functions are:  
•
•
•
•
•
•
•
•
Embedded control systems  
Portable/Battery operated systems  
Intelligent instruments  
Wireless instruments  
Wireless communication systems  
PDAs and hand-held equipments  
µP / µC power supply monitoring  
Safety system  
Typical Operating Circuit  
Unregulated DC  
Regulated +5V  
V
V
CC  
CC  
0.1 µF  
R
1
RESET  
PFO  
RESET  
NMI  
•
•
1.6 second watchdog timer to keep microprocessor  
responsive  
PFI  
V
BATT  
WDI  
I/O LINE  
GND  
R
2
4.40V or 4.65V VCC threshold for microprocessor reset at  
power-up and power-down  
+
V
3.6 V  
GND  
OUT  
_
Lithium  
Battery  
•
•
SPDT (Single-pole, Double-throw) PMOS switch connects  
backup power to RAM if VCC fails  
ASM690A  
1.25V threshold detector for power loss or general purpose  
voltage monitoring  
CMOS  
V
RAM  
CC  
These features are pin-compatible with the industry standard  
power-supply supervisors. Short-circuit and thermal protection  
have also been added. The AS690A / AS802L / AS805L  
generate a reset pulse when the supply voltage drops below  
4.65V and the AS692A / AS802M generate a reset below  
4.40V. The ASM802L / ASM802M have power-fail accuracy to  
± 2%. The ASM805L is the same as the ASM690A except that  
RESET is provided instead of RESET.  
GND  
Block Diagram  
1
8
Battery-Switchover Circuit  
V
V
OUT  
BATT  
2
V
CC  
7
Reset  
RESET  
(RESET)  
Generator  
+
-
|+  
Features  
1.25V  
Watchdog  
Timer  
•
Two precision supply-voltage monitor options  
•4.65V (AS690A / AS802L / AS805L)  
•4.40V (AS692A / AS802M )  
3.5V  
+
-
|+  
6
4
-
WDI  
PFI  
•
•
•
•
•
•
•
Battery-backup power switch on-chip  
Watchdog timer: 1.6 second timeout  
Power failure / low battery detection  
Short circuit protection and thermal limiting  
Small 8-pin SO package  
|+  
+
1.25V  
|+  
0.8V  
5
-
PFO  
+
ASM690A, ASM692A, ASM802L, ASM802M, (ASM805L)  
GND  
3
No external components  
Specified over full temperature range  
Alliance Semiconductor  
2575 Augustine Drive . Santa Clara, CA 95054 . Tel: 408.855.4900 . Fax: 408.855.4999 . www.alsc.com  
Notice: The information in this document is subject to change without notice  
1234567...13

中文翻译

下载PDF

与ASM802MESA相关器件

型号 品牌 获取价格 描述 数据表
ASM802MESAF PULSECORE

获取价格

 		μP Power Supply Supervisor With Battery Backu
ASM802MESAF ONSEMI

获取价格

 		2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8, 0.150 INCH, ROHS COMPLIANT, SOIC-8
ASM802MESAF-T PULSECORE

获取价格

 		暂无描述
ASM802MESAF-T ALSC

获取价格

 		Power Supply Management Circuit, Fixed, 2 Channel, PDSO8, 0.150 INCH, ROHS COMPLIANT, SOIC
ASM802MESA-T ONSEMI

获取价格

 		2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8, 0.150 INCH, SOIC-8
ASM802MESA-T ALSC

获取价格

 		暂无描述
ASM802MESA-T PULSECORE

获取价格

 		Power Supply Management Circuit, Fixed, 2 Channel, PDSO8, 0.150 INCH, SOIC-8
ASM805L PULSECORE

获取价格

 		μP Power Supply Supervisor With Battery Backu
ASM805L ALSC

获取价格

 		UP Power Supply Supervisor With Battery Backup Switch
ASM805LC/D ALSC

获取价格

 		UP Power Supply Supervisor With Battery Backup Switch

与ASM802MESA相关文章

您还可以找


热门产品
PCB打样/小批量
铝基板
BOM智能配单
PCBA制造
钣金
精密CNC
模具注塑
薄膜开关
精选活动
PCBA打样特惠
四六层板品质升级
铝基板品质升级
一体化电子制造
DFM下载
服务支持
企业认证
产品展示
工厂展示
工艺能力
积分商城
关于捷配
捷配简介
企业文化
公司动态
人才招聘
联系我们
帮助中心
下单流程
付款流程
开票流程
常见问题
全球PCB制造服务专线 400-613-0088

工作时间：9:00-21:00

CEO邮箱：ceo@jiepei.com

投诉邮箱：tousu@jiepei.com

捷配网-微信公众号 微信公众号
捷配网-微信公众号 抖音公众号
资质认证：
合作快递：
支付方式：
Copyright © 2024 Jiepei.com Inc. All Rights Reserved. 版权所有:杭州捷配信息科技有限公司 浙公网安备 33010502006866号 浙ICP备10014259号-119 营业执照ICP证