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TLC7733QPWREP

更新时间： 2024-11-16 03:59:27
品牌 Logo 应用领域
德州仪器 - TI 监控
页数 文件大小 规格书
11页 211K
描述
MICROPOWER SUPPLY VOLTAGE SUPERVISORS

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中文翻译

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TLC7733QPWREP 数据手册

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SGLS013A − MARCH 2003 − REVISED SEPTEMBER 2003  
D
Controlled Baseline  
− One Assembly/Test Site, One Fabrication  
Site  
D
D
D
D
D
Temperature-Compensated Voltage  
Reference  
Programmable Delay Time by External  
Capacitor  
D
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Extended Temperature Performance of  
−40°C to 125°C  
Enhanced Diminishing Manufacturing  
Sources (DMS) Support  
Supply Voltage Range . . . 2 V to 6 V  
Defined RESET Output from V  
≥1 V  
DD  
Power-Down Control Support for Static  
RAM With Battery Backup  
Enhanced Product Change Notification  
†
Qualification Pedigree  
D
Maximum Supply Current of 16 µA  
Power Saving Totem-Pole Outputs  
Power-On Reset Generator  
D
Automatic Reset Generation After  
Voltage Drop  
PW PACKAGE  
(TOP VIEW)  
D
Precision Voltage Sensor  
†
Component qualification in accordance with JEDEC and industry  
standards to ensure reliable operation over an extended  
temperature range. This includes, but is not limited to, Highly  
Accelerated Stress Test (HAST) or biased 85/85, temperature  
cycle, autoclave or unbiased HAST, electromigration, bond  
intermetallic life, and mold compound life. Such qualification  
testing should not be viewed as justifying use of this component  
beyond specified performance and environmental limits.  
CONTROL  
RESIN  
CT  
V
DD  
1
2
3
4
8
7
6
5
SENSE  
RESET  
RESET  
GND  
description  
The TLC77xx family of micropower supply voltage supervisors provide reset control, primarily in microcomputer  
and microprocessor systems.  
During power-on, RESET is asserted when V  
circuit monitors SENSE voltage and keeps the reset outputs active as long as SENSE voltage (V  
remains below the threshold voltage. An internal timer delays return of the output to the inactive state to ensure  
reaches 1 V. After minimum V  
(≥ 2 V) is established, the  
DD  
DD  
)
I(SENSE)  
proper system reset. The delay time, t , is determined by an external capacitor:  
d
4
t = 2.1 × 10 × C  
d
T
Where  
C is in farads  
T
t is in seconds  
d
Except for the TLC7701, which can be customized with two external resistors, each supervisor has a fixed  
SENSE threshold voltage set by an internal voltage divider. When SENSE voltage drops below the threshold  
voltage, the outputs become active and stay in that state until SENSE voltage returns above threshold voltage  
and the delay time, t , has expired.  
d
In addition to the power-on-reset and undervoltage-supervisor function, the TLC77xx adds power-down control  
support for static RAM. When CONTROL is tied to GND, RESET will act as active high. The voltage monitor  
contains additional logic intended for control of static memories with battery backup during power failure. By  
driving the chip select (CS) of the memory circuit with the RESET output of the TLC77xx and with the CONTROL  
driven by the memory bank select signal (CSH1) of the microprocessor (see Figure 10), the memory circuit is  
automatically disabled during a power loss. (In this application the TLC77xx power has to be supplied by the  
battery.)  
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...11

中文翻译

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TLC7733QPWREP 替代型号

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