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TPS3838-Q1 PDF预览

TPS3838-Q1

更新时间: 2024-11-14 11:07:55
品牌 Logo 应用领域
德州仪器 - TI 监控
页数 文件大小 规格书
13页 230K
描述
具有手动复位功能的低电平有效、漏极开路、汽车类、毫微功耗监控器

TPS3838-Q1 数据手册

 浏览型号TPS3838-Q1的Datasheet PDF文件第2页浏览型号TPS3838-Q1的Datasheet PDF文件第3页浏览型号TPS3838-Q1的Datasheet PDF文件第4页浏览型号TPS3838-Q1的Datasheet PDF文件第5页浏览型号TPS3838-Q1的Datasheet PDF文件第6页浏览型号TPS3838-Q1的Datasheet PDF文件第7页 
ꢍꢈ  
SGLS141 – DECEMBER 2002  
D
Qualification in Accordance With  
AEC-Q100  
D
Applications Include  
– Applications Using Automotive  
Low-Power DSPs, Microcontrollers, or  
Microprocessors  
– Battery-Powered Equipment  
– Intelligent Instruments  
D
Qualified for Automotive Applications  
D
Customer-Specific Configuration Control  
Can Be Supported Along With  
Major-Change Approval  
– Wireless Communication Systems  
– Automotive Systems  
D
ESD Protection Exceeds 2000 V Per  
MIL-STD-883, Method 3015; Exceeds 200 V  
Using Machine Model (C = 200 pF, R = 0)  
TPS3836, TPS3838  
DBV PACKAGE  
(TOP VIEW)  
D
D
D
D
Supply Current of 220 nA (Typ)  
Precision Supply Voltage Supervision  
Range: 1.8 V, 2.5 V, 3.0 V, 3.3 V  
1
2
3
5
V
DD  
CT  
Power-On Reset Generator With Selectable  
Delay Time of 10 ms or 200 ms  
GND  
Push/Pull RESET Output (TPS3836),  
RESET Output (TPS3837), or  
Open-Drain RESET Output (TPS3838)  
4
RESET  
MR  
TPS3837  
DBV PACKAGE  
(TOP VIEW)  
D
D
D
Manual Reset  
5-Pin SOT-23 Package  
Temperature Range –40°C to 125°C  
1
2
3
5
V
DD  
CT  
Contact factory for details. Q100 qualification data available on  
request.  
GND  
description  
4
RESET  
MR  
The TPS3836, TPS3837, TPS3838 families of  
supervisory circuits provide circuit initialization  
and timing supervision, primarily for DSP 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 output 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 starts after V  
has risen above the threshold voltage V .  
DD  
IT  
When CT is connected to GND a fixed delay time of typical 10 ms is asserted. When connected to V  
time is typically 200 ms.  
the delay  
DD  
When the supply voltage drops below the threshold voltage V , the output becomes active (low) again.  
IT  
All the devices of this family have a fixed-sense threshold voltage V set by an internal voltage divider.  
IT  
The TPS3836 has an active-low push-pull RESET output. The TPS3837 has active-high push-pull RESET, and  
TPS3838 integrates an active-low open-drain RESET output.  
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  
ꢀꢫ  
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1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  

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