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TPS3809-Q1 PDF预览

TPS3809-Q1

更新时间： 2024-11-08 11:07:55
品牌 Logo 应用领域
德州仪器 - TI 监控电源管理电路电源电路
页数 文件大小 规格书
9页 141K
描述
具有低电平有效和推挽复位功能的汽车类 3 引脚电压监控器（复位 IC）

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中文翻译

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TPS3809-Q1 数据手册

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SGLS142 – DECEMBER 2002  
D
Qualification in Accordance With  
AEC-Q100  
D
D
D
Precision Supply Voltage Monitor  
2.5 V, 3 V, 3.3 V, 5 V  
†
D
Qualified for Automotive Applications  
Power-On Reset Generator With Fixed  
Delay Time of 200 ms  
D
Customer-Specific Configuration Control  
Can Be Supported Along With  
Pin-For-Pin Compatible With MAX 809  
†
Major-Change Approval  
TPS3809 . . . DBV PACKAGE  
(TOP VIEW)  
D
ESD Protection Exceeds 2000 V Per  
MIL-STD-883, Method 3015; Using Human  
Body Model (C = 100 pF, R = 1500 Ω)  
1
GND  
D
D
3-Pin SOT-23 Package  
3
V
DD  
Supply Current of 9 µA (Typical)  
†
Contact factory for details. Q100 qualification data available on  
request.  
2
RESET  
description  
The TPS3809 family of supervisory circuits provides circuit initialization and timing supervision, primarily for  
DSPs and processor-based systems.  
During power-on, RESET is asserted when the supply voltage V becomes higher than 1.1 V. Thereafter, the  
DD  
supervisory circuit monitors V and keeps RESET active as long as V remains below the threshold voltage  
DD  
DD  
V . An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset.  
IT  
The delay time, t  
= 200 ms, starts after V has risen above the threshold voltage V . When the supply  
d(typ)  
DD IT  
voltage drops below the threshold voltage V , the output becomes active (low) again. No external components  
IT  
are required. All the devices of this family have a fixed sense-threshold voltage V set by an internal voltage  
IT  
divider.  
The product spectrum is designed for supply voltages of 2.5 V, 3 V, 3.3 V, and 5 V. The circuits are available  
in a 3-pin SOT-23. The TPS3809xxxQ-Q1 devices are characterized for operation over a temperature range  
of –40°C to 125°C, and are qualified in accordance with AEC-Q100 stress test qualification for integrated  
circuits.  
typical applications  
TPS76333  
3.3 V  
D Applications Using  
Automotive  
DSPs,  
5 V  
IN  
OUT  
Microcontrollers, or Microprocessors  
D Wireless Communication Systems  
D Battery-Powered Equipment  
GND  
V
DD  
TMS320LC54x  
V
DD  
TPS3809K33  
RESET  
D Programmable Controls  
D Intelligent Instruments  
D Industrial Equipment  
D Automotive Systems  
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.  
Copyright 2002, Texas Instruments Incorporated  
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...9

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