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LM810M3X-4.38 Datasheet

  • LM810M3X-4.38

  • 3-Pin Microprocessor Reset Circuits

  • 8頁

  • NSC

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LM809/LM810 3-Pin Microprocessor Reset Circuits
September 2002
LM809/LM810
3-Pin Microprocessor Reset Circuits
General Description
The LM809/810 microprocessor supervisory circuits can be
used to monitor the power supplies in microprocessor and
digital systems. They provide a reset to the microprocessor
during power-up, power-down and brown-out conditions.
The function of the LM809/810 is to monitor the V
CC
supply
voltage, and assert a reset signal whenever this voltage
declines below the factory-programmed reset threshold. The
reset signal remains asserted for 240ms after V
CC
rises
above the threshold. The LM809 has an active-low RESET
output, while the LM810 has an active-high RESET output.
Seven standard reset voltage options are available, suitable
for monitoring 5V, 3.3V, and 3V supply voltages.
With a low supply current of only 15碌A(chǔ), the LM809/810 are
ideal for use in portable equipment. The LM809/LM810 are
available in the 3-pin SOT23 package and in the 6-Lead LLP
package.
Features
Precise monitoring of 3V, 3.3V, and 5V supply voltages
Superior upgrade to MAX809/810
Fully specified over temperature
140ms min. Power-On Reset pulse width, 240ms typical
Active-low RESET Output (LM809)
Active-high RESET Output (LM810)
n
Guaranteed RESET Output valid for V
CC
鈮?V
n
Low Supply Current, 15碌A(chǔ) typ.
n
Power supply transient immunity
n
n
n
n
Applications
n
n
n
n
n
n
Microprocessor Systems
Computers
Controllers
Intelligent Instruments
Portable/Battery-Powered Equipment
Automotive
Typical Application Circuit
10105701
Connection Diagrams
10105702
( ) are for LM810
10105715
Top View
See NS package Number LDB06A
( ) are for LM810
漏 2002 National Semiconductor Corporation
DS101057
www.national.com

LM810M3X-4.38 產(chǎn)品屬性

  • 3,000

  • 集成電路 (IC)

  • PMIC - 監(jiān)控器

  • -

  • 簡單復(fù)位/加電復(fù)位

  • 1

  • 推挽式，圖騰柱

  • 高有效

  • 最小為 140 ms

  • 4.38V

  • -40°C ~ 105°C

  • 表面貼裝

  • TO-236-3，SC-59，SOT-23-3

  • SOT-23-3

  • 帶卷 (TR)

  • *LM810M3X-4.38

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