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TL7705ACDG4 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
电源监控芯片
封装:
SOIC-8
描述:
TEXAS INSTRUMENTS TL7705ACDG4 电压监控器, 高电平有效, 低电平有效复位, 3.5V-18V输入, SOIC-8
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引脚图在P3Hot
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原理图在P8P10P12P13
封装尺寸在P17P18P19P20P22P23
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技术参数、封装参数在P4
应用领域在P1P31
电气规格在P5
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TL7705ACDG4数据手册
Page:
of 31 Go
若手册格式错乱，请下载阅览PDF原文件
=
µC
TL7702A
,
TL7705A
,
TL7709A
,
TL7712A
,
TL7715A
SLVS028J –APRIL 1983–REVISED JANUARY 2015
www.ti.com
10 Application and Implementation
NOTE
Information in the following applications sections is not part of the TI component
specification, and TI does not warrant its accuracy or completeness. TI’s customers are
responsible for determining suitability of components for their purposes. Customers should
validate and test their design implementation to confirm system functionality.
10.1 Application Information
This application shows the initialization circuit diagrams for a microprocessor system with supply voltage Vcc = 5
V. The external components required are the decoupling capacitor C
ref
for the reference voltage and the timing
capacitor C
T
. The outputs of the TL77xxA are open collector outputs. In Figure 8 therefore a pull-up resistor is
shown at the RESET output to ensure the correct HIGH level.
10.2 Typical Application
Figure 8. Reset Controller Schematic for a Microprocessor
10.2.1 Design Requirements
• 5-V microprocessor supply voltage
• t
d
= 1.3 ms
10.2.2 Detailed Design Procedure
• Select reasonable values for pull-up/pull-down resistors for RESET and RESET. This design will use 10 kΩ.
• Choose C
T
= 0.1 µF to achieve t
d
= 1.3 ms
• This design will use only the active-low reset output (RESET) because the example microcontroller resets
when the input is Low.
10 Submit Documentation Feedback Copyright © 1983–2015, Texas Instruments Incorporated
Product Folder Links: TL7702A TL7705A TL7709A TL7712A TL7715A
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