Datasheet > LM3702XDBPX-49

LM3702XDBPX-49

更新时间： 2024-11-05 05:11:19

品牌	Logo	应用领域
美国国家半导体 - NSC		微处理器监控
页数	文件大小	规格书
13页	221K
描述
Microprocessor Supervisory Circuits with Low Line Output and Manual Reset

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LM3702XDBPX-49 数据手册

September 2003

LM3702/LM3703

Microprocessor Supervisory Circuits with Low Line

Output and Manual Reset

n No external components required

n Manual-Reset input

The LM3702/LM3703 series of microprocessor supervisory

n RESET (LM3702) or RESET (LM3703) outputs

General Description

circuits provide the maximum flexibility for monitoring power

supplies and battery controlled functions in systems without

backup batteries. The LM3702/LM3703 series are available

in a 9-bump micro SMD package.

n Precision supply voltage monitor

n Factory programmable Reset Timeout Delay

n Available in micro SMD package for minimum footprint

0.5% Reset threshold accuracy at room temperature

2% Reset threshold accuracy over temperature

extremes

Built-in features include the following:

Reset: Reset is asserted during power-up, power-down, and

brownout conditions. RESET is guaranteed down to V_CCof

1.0V.

n Reset assertion down to 1V V_CC(RESET option only)

n 28 µA V_CCsupply current

Manual Reset Input: An input that asserts reset when pulled

low.

Applications

Low Line Output: This early power failure warning indicator

goes low when the supply voltage drops to a value which is

2% higher than the reset threshold voltage.

n Embedded Controllers and Processors

n Intelligent Instruments

n Automotive Systems

Features

n Critical µP Power Monitoring

n Standard Reset Threshold voltage: 3.08V

n Custom Reset Threshold voltages: For other voltages

between 2.2V and 5.0V in 10mV increments, contact

National Semiconductor Corp.

Typical Application

20011503

DS200115

www.national.com

12 3 4 5 6 7...13

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