ADM811-3TARTZ-RL7 Analog Devices Inc, ADM811-3TARTZ-RL7 Datasheet

IC,VOLT DETECTOR,FIXED,+3.08V,CMOS,TO-253LOW,4PIN,PLASTIC

ADM811-3TARTZ-RL7

Manufacturer Part Number

ADM811-3TARTZ-RL7

Description

IC,VOLT DETECTOR,FIXED,+3.08V,CMOS,TO-253LOW,4PIN,PLASTIC

Manufacturer

Analog Devices Inc

Type

Simple Reset/Power-On Resetr

Datasheets

1.ADM811-3TART-REEL.pdf (12 pages)

2.ADM811-3TARTZ-RL7.pdf (8 pages)

Specifications of ADM811-3TARTZ-RL7

Package / Case

SOT-143, SOT-143B, TO-253AA

Mounting Type

Surface Mount

Operating Temperature

-40°C ~ 85°C

Output

Push-Pull, Totem Pole

Reset

Active Low

Number Of Voltages Monitored

Reset Timeout

140 ms Minimum

Voltage - Threshold

3.08V

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

H&T Electronics

Part Number:

ADM811-3TARTZ-RL7

Quantity:

2 854

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FEATURES

Superior upgrade for MAX811/MAX812

Specified over temperature

Low power consumption (5 μA typ)

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

Reset assertion down to 1 V

140 ms min power-on reset

Logic low RESET output (ADM811)

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.

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.

Rev. D

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

rights of third parties that may result from its 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 and registered trademarks are the property of their respective owners.

Circuit in 4-Lead SOT-143 with DSP

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

Tel: 781.329.4700

Fax: 781.461.3113

Microprocessor Supervisory

REF

FUNCTIONAL BLOCK DIAGRAM

Figure 2. Typical ADM811 Operating Circuit

ADM811

GND

RESET

ADM811/ADM812

DEBOUNCE

GENERATOR

ADM811/ADM812

RESET

Figure 1.

100kΩ

MICROPROCESSOR

RESET

SYSTEM

GND

www.analog.com

RESET/RESET

GND

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