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TPS3620-50DGKTG4 PDF预览

TPS3620-50DGKTG4

更新时间： 2024-11-20 04:27:35
品牌 Logo 应用领域
德州仪器 - TI 电池
页数 文件大小 规格书
18页 338K
描述
BACKUP-BATTERY SUPERVISORS FOR RAM RETENTION

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TPS3620-50DGKTG4 数据手册

 浏览型号TPS3620-50DGKTG4的Datasheet PDF文件第2页浏览型号TPS3620-50DGKTG4的Datasheet PDF文件第3页浏览型号TPS3620-50DGKTG4的Datasheet PDF文件第4页浏览型号TPS3620-50DGKTG4的Datasheet PDF文件第5页浏览型号TPS3620-50DGKTG4的Datasheet PDF文件第6页浏览型号TPS3620-50DGKTG4的Datasheet PDF文件第7页 
TPS3619-33, TPS3619-50  
TPS3620-33, TPS3620-50  
www.ti.com  
SLVS387G–APRIL 2001–REVISED DECEMBER 2006  
BACKUP-BATTERY SUPERVISORS FOR RAM RETENTION  
FEATURES  
DESCRIPTION  
•
•
•
Supply Current of 40 µA (Max)  
The TPS3619 and TPS3620 families of supervisory  
circuits monitor and control processor activity by  
providing backup-battery switchover for data  
retention of CMOS RAM.  
Battery-Supply Current of 100 nA (Max)  
Precision Supply Voltage Monitor 3.3 V, 5 V,  
Other Options on Request  
During power on, RESET is asserted when the  
supply voltage (VDD or VBAT) becomes higher than  
1.1 V. Thereafter, the supply voltage supervisor  
monitors VDD and keeps RESET output active as  
long as VDD remains below the threshold voltage  
(VIT). An internal timer delays the return of the output  
to the inactive state (high) to ensure proper system  
reset. The delay time starts after VDD has risen  
above VIT. When the supply voltage drops below VIT,  
the output becomes active (low) again.  
•
•
Backup-Battery Voltage Can Exceed VDD  
Power On Reset Generator With Fixed 100-ms  
Reset Delay Time  
•
Voltage Monitor For Power-Fail or Low-Battery  
Monitoring  
•
•
Battery Freshness Seal (TPS3619)  
Pin-For-Pin Compatible With MAX819,  
MAX703, and MAX704  
•
•
8-Pin MSOP Package  
The product spectrum is designed for supply  
voltages of 3.3 V and 5 V. The TPS3619 and  
TPS3620 are available in an 8-pin MSOP package  
Temperature Range –40°C to +85°C  
APPLICATIONS  
and are characterized for operation over  
temperature range of –40°C to +85°C.  
a
•
•
•
•
•
•
•
•
•
Fax Machines  
Set-Top Boxes  
Advanced Voice Mail Systems  
Portable Battery-Powered Equipment  
Computer Equipment  
Advanced Modems  
Automotive Systems  
Portable Long-Time Monitoring Equipment  
Point-of-Sale Equipment  
DGK PACKAGE  
(TOP VIEW)  
VBAT  
RESET  
MR  
8
7
6
5
VOUT  
VDD  
GND  
PFI  
1
2
3
4
ACTUAL SIZE  
3,05 mm x 4,98 mm  
PFO  
TYPICAL OPERATING CIRCUIT  
Power  
Supply  
TPS3619  
Microcontroller  
or  
Microprocessor  
Backup  
Battery  
TPS3620  
0.1 µF  
V
V
BAT  
DD  
External  
Source  
RESET  
I/O  
RESET  
PFO  
R
R
x
PFI  
MR  
Switchover  
Capacitor  
y
V
OUT  
V
CC  
0.1 µF  
Manual  
Reset  
GND  
GND  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
All trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2001–2006, Texas Instruments Incorporated  
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TPS3620-50DGKTG4 替代型号

型号 品牌 替代类型 描述 数据表
TPS3620-50DGKR TI

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