LM8364BALMF20 National Semiconductor, LM8364BALMF20 Datasheet

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LM8364BALMF20

Manufacturer Part Number
LM8364BALMF20
Description
Micropower Undervoltage Sensing Circuits
Manufacturer
National Semiconductor
Datasheet

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© 2003 National Semiconductor Corporation
LM8364
Micropower Undervoltage Sensing Circuits
General Description
The LM8364 series are micropower undervoltage sensing
circuits that are ideal for use in battery powered micropro-
cessor based systems, where extended battery life is a key
requirement.
A range of threshold voltages from 2.0V to 4.5V are available
with an active low open drain output. These devices feature
a very low quiescent current of 0.65µA typical. The LM8364
series features a highly accurate voltage reference, a com-
parator with precise thresholds and built-in hysterisis to pre-
vent erratic reset operation, and guaranteed Reset operation
down to 1.0V with extremely low standby current.
These devices are available in the space saving SOT23
5-pin surface mount package. For other undervoltage
thresholds and output options, please contact National
Semiconductor.
Functional Block Diagram
DS200659
20065907
Features
n Extremely Low Quiescent Current: 0.65µA, at V
n High Accuracy Threshold Voltage (
n Open Drain Output
n Input Voltage Range: 1V to 6V
n Surface Mount Package (5-Pin SOT23)
n Pin for pin compatible with MC33464
Applications
n Low Battery Detection
n Microprocessor reset Controller
n Power Fail Indicator
n Battery Backup Detection
Connection Diagram
2.87V
5-Pin SOT23
Top View
±
2.5%)
20065906
www.national.com
March 2003
IN
=

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LM8364BALMF20 Summary of contents

Page 1

... These devices are available in the space saving SOT23 5-pin surface mount package. For other undervoltage thresholds and output options, please contact National Semiconductor. Functional Block Diagram © 2003 National Semiconductor Corporation Features n Extremely Low Quiescent Current: 0.65µ 2.87V n High Accuracy Threshold Voltage ( ...

Page 2

... Pin Description Ordering Information Package Part Number LM8364BALMF20 LM8364BALMFX20 LM8364BALMF30 5-Pin SOT23 LM8364BALMFX30 LM8364BALMF45 LM8364BALMFX45 www.national.com Package Threshold Output Type Marking Open Drain, F01A 2.0V Active Low Open Drain, F05A 3.0V Active Low Open Drain, F04A 4.5V Active Low 2 20065908 Transport Media NSC Drawing ...

Page 3

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage RESET Output Voltage RESET Output Current Storage Temperature Range Mounting Temp. Lead temp (Soldering, 10 sec) Electrical Characteristics Unless otherwise specified, all limits guaranteed for T ...

Page 4

Typical Performance Characteristics Input Current vs. Input Voltage LM8364BALMF45 Reset Output Sink Current vs. Input Voltage LM8364BALMF45 Detector Threshold Voltage vs. Temperature LM8364BALMF45 www.national.com Reset Output Voltage vs. Input Voltage LM8364BALMF45 20065901 Reset Output Sink Current vs. Output Voltage LM8364BALMF45 ...

Page 5

Application Notes The propagation delay time for the LM8364 is measured using a 470kΩ pull-up resistor connected to from the RESET output pin addition to a 10pF capacitive load con- FIGURE 1. Propagation Delay Timing Diagrams The ...

Page 6

Typical Applications www.national.com Microprocessor Reset Circuit Dual Power Supply Undervoltage Supervision 6 20065911 20065912 ...

Page 7

Typical Applications (Continued) Microcontroller System Load Sensing LED Bar Graph Voltage Monitor 7 20065913 20065914 www.national.com ...

Page 8

... NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant ...

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