5秒后页面跳转
捷配首页

Datasheet > LTC694-3.3
LTC694-3.3 PDF预览

LTC694-3.3

更新时间： 2024-09-26 22:15:15
品牌 Logo 应用领域
凌特 - Linear 微处理器监控
页数 文件大小 规格书
16页 142K
描述
3.3V Microprocessor Supervisory Circuits

阅读下载

中文翻译

获取价格

LTC694-3.3 数据手册

 浏览型号LTC694-3.3的Datasheet PDF文件第2页浏览型号LTC694-3.3的Datasheet PDF文件第3页浏览型号LTC694-3.3的Datasheet PDF文件第4页浏览型号LTC694-3.3的Datasheet PDF文件第5页浏览型号LTC694-3.3的Datasheet PDF文件第6页浏览型号LTC694-3.3的Datasheet PDF文件第7页 
LTC694-3.3/ LTC695-3.3  
3.3V Mic ro p ro c e sso r  
Sup e rviso ry Circ uits  
U
FEATURES  
DESCRIPTIO  
■
UL Recognized ®  
File # E145770  
The LTC®694-3.3/LTC695-3.3 provide complete 3.3V  
power supply monitoring and battery control functions.  
Theseincludepower-onreset,batteryback-up,RAMwrite  
protection, power failure warning and watchdog timing.  
The devices are pin compatible upgrades of the LTC694/  
LTC695 that are optimized for 3.3V systems. Operating  
power consumption has been reduced to 0.6mW (typical)  
and 3µW maximum in battery back-up mode. Micropro-  
cessor reset and memory write protection are provided  
when the supply falls below 2.9V. The RESET output is  
■
Guaranteed Reset Assertion at VCC = 1V  
Pin Compatible with LTC694/LTC695  
for 3.3V Systems  
■
■
■
200µA Typical Supply Current  
Fast (30ns Typ) On-Board Gating of  
RAM Chip Enable Signals  
■
■
■
■
■
■
SO-8 and S16 Packages  
2.90V Precision Voltage Monitor  
Power OK/Reset Time Delay: 200ms or Adjustable  
Minimum External Component Count  
1µA Maximum Standby Current  
Voltage Monitor for Power-Fail or  
Low-Battery Warning  
guaranteed to remain logic low with V as low as 1V.  
CC  
The LTC694-3.3/LTC695-3.3 power the active RAMs with  
a charge pumped NMOS power switch to achieve low  
dropout and low supply current. When primary power is  
lost, auxiliary power, connected to the battery input pin,  
powers the RAMs in standby through an efficient PMOS  
switch.  
■
■
Thermal Limiting  
Performance Specified Over Temperature  
U
APPLICATIO S  
For an early warning of impending power failure, the  
LTC694-3.3/LTC695-3.3 provide an internal comparator  
with a user-defined threshold. An internal watchdog timer  
is also available, which forces the reset pins to active  
states when the watchdog input is not toggled prior to a  
preset time-out period.  
■
3.3V Low Power Systems  
Critical µP Power Monitoring  
Intelligent Instruments  
Battery-Powered Computers and Controllers  
■
■
■
■
Automotive Systems  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
U
TYPICAL APPLICATIO  
RESET Output Voltage vs  
Supply Voltage  
5
LT1129-3.3  
V
V
IN  
≥ 5V  
3.3V  
V
IN  
V
V
POWER TO  
CMOS RAM POWER  
µP  
V
OUT  
CC  
OUT  
+
+
0.1µF  
4
3
100µF  
0.1µF  
1µF  
OUT SENSE  
SHDN  
GND  
LTC695-3.3  
µP  
SYSTEM  
DECODER OUTPUT  
RAM CS  
µP RESET  
µP NMI  
CE IN  
BATT  
CE OUT  
RESET  
PFO  
2.4V  
51k  
18k  
2
1
0
PFI  
WDI  
I/O LINE  
GND  
MICROPROCESSOR RESET, BATTERY BACK-UP,  
100Ω  
RAM WRITE PROTECTION, POWER WARNING AND  
WATCHDOG TIMING ARE ALL IN A SINGLE CHIP  
FOR 3.3V MICROPROCESSOR SYSTEM  
0.1µF  
0
1
2
3
4
5
694/5-3.3 TA01  
SUPPLY VOLTAGE (V)  
694/5-3.3 TA02  
1
1234567...16

中文翻译

下载PDF

与LTC694-3.3相关器件

型号 品牌 获取价格 描述 数据表
LTC694-3.3_15 Linear

获取价格

 		3.3V Microprocessor Supervisory Circuits
LTC694-3.3CS8 Linear

获取价格

 		IC 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8, 0.150 INCH, PLASTIC, SOP-8, Power Managem
LTC694-3.3IJ8 Linear

获取价格

 		IC 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, CDIP8, 0.300 INCH, HERMETIC SEALED, CERDIP-8, Po
LTC694-3.3IN8 Linear

获取价格

 		IC 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDIP8, 0.300 INCH, PLASTIC, DIP-8, Power Managem
LTC6943CGN Linear

获取价格

 		Micropower, Dual Precision Instrumentation Switched Capacitor Building Block
LTC6943CGN#TR Linear

获取价格

 		LTC6943 - Micropower, Dual Precision Instrumentation Switched Capacitor Building Block; Pa
LTC6943HGN Linear

获取价格

 		Micropower, Dual Precision Instrumentation Switched Capacitor Building Block
LTC6943HGN#PBF Linear

获取价格

 		LTC6943 - Micropower, Dual Precision Instrumentation Switched Capacitor Building Block; Pa
LTC6943HGN#TR Linear

获取价格

 		LTC6943 - Micropower, Dual Precision Instrumentation Switched Capacitor Building Block; Pa
LTC6943HGN#TRPBF Linear

获取价格

 		LTC6943 - Micropower, Dual Precision Instrumentation Switched Capacitor Building Block; Pa

与LTC694-3.3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