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TPS3813J25DBV

更新时间： 2024-11-26 22:08:59
品牌 Logo 应用领域
德州仪器 - TI 电源电路电源管理电路光电二极管监控
页数 文件大小 规格书
12页 193K
描述
PROCESSOR SUPERVISORY CIRCUITS WITH WINDOW-WATCHDOG

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TPS3813J25DBV 技术参数

生命周期：Obsolete零件包装代码：SOT-23
包装说明：PLASTIC, SOT-23, 6 PIN针数：6
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.29
Is Samacsys：N其他特性：DETECTION THRESHOLD VOLTAGE IS 2.25V; POWER ON RESET GENERATOR
可调阈值：NO模拟集成电路 - 其他类型：POWER SUPPLY MANAGEMENT CIRCUIT
JESD-30 代码：R-PDSO-G6长度：2.9 mm
信道数量：1功能数量：1
端子数量：6最高工作温度：85 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：LSSOP封装等效代码：TSOP6,.11,37
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
电源：2/6 V认证状态：Not Qualified
座面最大高度：1.45 mm子类别：Power Management Circuits
最大供电电流 (Isup)：0.025 mA最大供电电压 (Vsup)：6 V
最小供电电压 (Vsup)：2 V标称供电电压 (Vsup)：2.5 V
表面贴装：YES温度等级：INDUSTRIAL
端子形式：GULL WING端子节距：0.95 mm
端子位置：DUAL宽度：1.6 mm
Base Number Matches：1

TPS3813J25DBV 数据手册

 浏览型号TPS3813J25DBV的Datasheet PDF文件第2页浏览型号TPS3813J25DBV的Datasheet PDF文件第3页浏览型号TPS3813J25DBV的Datasheet PDF文件第4页浏览型号TPS3813J25DBV的Datasheet PDF文件第5页浏览型号TPS3813J25DBV的Datasheet PDF文件第6页浏览型号TPS3813J25DBV的Datasheet PDF文件第7页 
TPS3813J25, TPS3813L30, TPS3813K33, TPS3813I50  
PROCESSOR SUPERVISORY CIRCUITS WITH WINDOW-WATCHDOG  
SLVS331A – DECEMBER 2000 – REVISED APRIL 2001  
features  
typical applications  
Window-Watchdog With Programmable  
Delay and Window Ratio  
Applications Using DSPs, Microcontrollers,  
or Microprocessors  
6-Pin SOT-23 Package  
Safety Critical Systems  
Automotive Systems  
Heating Systems  
Supply Current of 9 µA (Typ)  
Power On Reset Generator With a Fixed  
Delay Time of 25 ms  
TPS3813  
DBV PACKAGE  
(TOP VIEW)  
Precision Supply Voltage Monitor 2.5 V, 3 V,  
3.3 V, 5 V  
1
2
3
6
5
4
RESET  
WDR  
Open-Drain Reset Output  
WDI  
Temperature Range . . . –40°C to 85°C  
GND  
description  
V
DD  
WDT  
The TPS3813 family of supervisory circuits pro-  
vides circuit initialization and timing supervision,  
primarily for DSPs and processor-based systems.  
ACTUAL SIZE  
3,00 mm x 3,00 mm  
During power on, RESET is asserted when supply  
voltage (V ) becomes higher than 1.1 V. There  
DD  
after, the supervisory circuit monitors V and keeps RESET active as long as V remains below the threshold  
DD  
DD  
voltage (V ). An internal timer delays the return of the output to the inactive state (high) to ensure proper system  
IT  
reset. The delay time, t = 25 ms typical, starts after V has risen above the threshold voltage (V ). When the  
DD  
IT  
d
supply voltage drops below the threshold voltage (V ), the output becomes active (low) again. No external  
IT  
components are required. All the devices of this family have a fixed-sense threshold voltage (V ) set by an  
IT  
internal voltage divider.  
For safety critical applications the TPS3813 family incorporates a so-called window-watchdog with  
programmable delay and window ratio. The upper limit of the watchdog time-out can be set by either connecting  
WDT to GND, V , or using an external capacitor. The lower limit and thus the window ratio is set by connecting  
DD  
WDR to GND or V . The supervised processor now needs to trigger the TPS3813 within this window not to  
DD  
assert a RESET.  
typical operating circuit  
V
DD  
0.1 µF  
0.1 µF  
R
V
DD  
V
DD  
WDR RESET  
TPS3813  
RESET  
uC  
WDT  
WDI  
I/O  
GND  
GND  
C
WP  
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.  
Copyright 2001, Texas Instruments Incorporated  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...12

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