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TPS3803

更新时间： 2024-11-23 21:55:23
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
13页 284K
描述
VOLTAGE DETECTOR

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中文翻译

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TPS3803 数据手册

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SGLS228 − DECEMBER 2003  
D
Push/Pull Reset Output (TPS3805)  
Open-Drain Reset Output (TPS3803)  
features  
D
Qualification in Accordance With  
D
D
Temperature Range . . . −40°C to 125°C  
Five-Pin SC−70 Package  
†
AEC-Q100  
D
D
Qualified for Automotive Applications  
Customer-Specific Configuration Control  
Can Be Supported Along With  
Major-Change Approval  
typical applications  
D
Applications Using DSPs, Microcontrollers,  
or Microprocessors  
D
D
Single Voltage Detector (TPS3803):  
Adjustable/1.5 V  
D
D
D
D
D
D
D
Wireless Communication Systems  
Portable/Battery-Powered Equipment  
Programmable Controls  
Dual Voltage Detector (TPS3805):  
Adjustable/3.3 V  
D
D
High 1.5% Threshold Voltage Accuracy  
Intelligent Instruments  
Supply Current: 3 µA Typical at V  
= 3.3 V  
DD  
Industrial Equipment  
†
Contact factory for details. Q100 qualification data available on  
request.  
Notebook/Desktop Computers  
Automotive Systems  
description  
DCK PACKAGE  
(TOP VIEW)  
The TPS3803 and TPS3805 families of supervi-  
TPS3803-01, TPS3803G15, TPS3805  
sory circuits provide circuit initialization and timing  
supervision, primarily for DSPs and processor-  
based systems.  
1
2
3
5
NC  
SENSE  
NC{  
GND  
RESET  
{
The TPS3803G15 device has a fixed-sense  
threshold voltage V set by an internal voltage  
divider, whereas the TPS3803−01 has an  
adjustable SENSE input that can be configured by  
two external resistors. In addition to the fixed  
4
V
IT  
DD  
TPS3803G15  
sense threshold monitored at V , the TPS3805  
devices provide a second adjustable SENSE  
input. RESET is asserted in case any of the two  
DD  
typical operating circuit  
1.6 V 3.3 V  
voltages drops below V  
IT.  
During power on, RESET is asserted when supply  
voltage V becomes higher than 0.8 V.  
DV  
DD  
CV  
DD  
DD  
R1  
R2  
V
RESET  
TPS3805H33  
SENSE  
RESET  
Thereafter, the supervisory circuit monitors V  
DD  
DD  
(and/or SENSE) and keeps RESET active as long  
as V or SENSE remains below the threshold  
TMS320VC5416  
GND  
DD  
voltage V . As soon as V  
(SENSE) rises above  
GND  
IT  
DD  
the threshold voltage V , RESET is deasserted  
IT  
again. The product spectrum is designed for  
1.5 V, 3.3 V, and adjustable supply voltages. The  
devices are available in a five-pin SC-70 package.  
The TPS3803 and TPS3805 devices are  
characterized for operation over a temperature  
range of −40°C to 125°C.  
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.  
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Copyright 2003 Texas Instruments Incorporated  
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...13

中文翻译

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