ADM812ZART

更新时间： 2024-11-05 12:34:23

品牌	Logo	应用领域
亚德诺 - ADI		微处理器监控
页数	文件大小	规格书
12页	178K
描述
Microprocessor Supervisory Circuit in 4-Lead SOT-143 with DSP

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ADM812ZART 数据手册

Microprocessor Supervisory

Circuit in 4-Lead SOT-143 with DSP

ADM811/ADM812

Data Sheet

FEATURES

FUNCTIONAL BLOCK DIAGRAM

Superior upgrade for MAX811/MAX812

Specified over temperature

Low power consumption: 5 µA typical

Precision voltage monitor: 2.5 V, 3 V, 3.3 V, 5 V options

Reset assertion down to 1 V_CC

ADM811/ADM812

RESET

GENERATOR

RESET/RESET

GND

REF

DEBOUNCE

Power-on reset: 140 ms minimum

RESET

Logic low

output (ADM811)

Figure 1.

Logic high RESET output (ADM812)

Built-in manual reset

APPLICATIONS

Microprocessor systems

Controllers

Intelligent instruments

Automotive systems

Safety systems

Portable instruments

GENERAL DESCRIPTION

The ADM811/ADM812 are reliable voltage monitoring devices

suitable for use in most voltage monitoring applications. The

ADM811/ADM812 are designed to monitor six different

voltages, each allowing a 5% or 10% degradation of standard

PSU voltages before a reset occurs. These voltages have been

selected for the effective monitoring of 2.5 V, 3 V, 3.3 V, and 5 V

supply voltage levels.

ADM811

MICROPROCESSOR

SYSTEM

RESET

GND

RESET

100kΩ

GND

Included in this circuit is a debounced manual reset input.

Reset can be activated using an electrical switch (or an input

from another digital device) or by a degradation of the supply

voltage. The manual reset function is very useful, especially if

the circuit in which the ADM811/ADM812 are operating enters

into a state that can only be detected by the user. Allowing the

user to reset a system manually can reduce the damage or

danger that could otherwise be caused by an out-of-control

or locked system.

Figure 2. Typical ADM811 Operating Circuit

Rev. G

Document Feedback

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rightsof third parties that may result fromits use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks andregisteredtrademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Technical Support

www.analog.com

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与ADM812ZART相关器件

型号	品牌	获取价格	描述	数据表
ADM812ZART-REEL	ADI	获取价格	Microprocessor Supervisory Circuit in 4-Lead SOT-143 with DSP
ADM812ZART-REEL7	ADI	获取价格	Microprocessor Supervisory Circuit in 4-Lead SOT-143 with DSP
ADM812ZART-REEL-7	ADI	获取价格	IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO4, TO-253D, SOT-143, 4 PIN, Power Management Ci
ADM812ZARTZ-REEL	ADI	获取价格	Microprocessor Supervisory Circuit in 4-Lead SOT-143 with DSP
ADM812ZARTZ-REEL7	ADI	获取价格	Microprocessor Supervisory Circuit in 4-Lead SOT-143 with DSP
ADM8211	ETC	获取价格	IEEE802.11b WLAN NIC Solution
ADM8211C	INFINEON	获取价格	LAN Controller, 1 Channel(s), CMOS, PQFP128, 14 X 14 MM, 1.40 MM HEIGHT, LQFP-128
ADM8211CR	INFINEON	获取价格	LAN Controller, 1 Channel(s), CMOS, PQFP128, 14 X 14 MM, 1.40 MM HEIGHT, LQFP-128
ADM823	ADI	获取价格	Supervisory Circuits with Watchdog and Manual Reset in 5-Lead SC70 and SOT-23
ADM823_15	ADI	获取价格	Supervisory Circuits with Watchdog and Manual Reset in 5-Lead SC70 and SOT-23

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