Datasheet > LM3712YW2BPX308

LM3712YW2BPX308

更新时间： 2024-11-08 22:14:51

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	235K
描述
Microprocessor Supervisory Circuits with Separate Watchdog Timer Output, Power Fail Input and Manual Reset

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LM3712YW2BPX308 数据手册

July 2002

LM3712/LM3713

Microprocessor Supervisory Circuits with Separate

Watchdog Timer Output, Power Fail Input and Manual

Reset

General Description

Features

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.

The LM3712/LM3713 series of microprocessor supervisory

circuits provide the maximum flexibility for monitoring power

supplies and battery controlled functions in systems without

backup batteries. The LM3712/LM3713 series are available

in a 9-bump micro SMD package.

n No external components required

n Manual-Reset input

Built-in features include the following:

n RESET (LM3712) or RESET (LM3713) outputs

n Precision supply voltage monitor

n Factory programmable Reset and Watchdog Timeout

Delays

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

brownout conditions. RESET is guaranteed down to V_CCof

1.0V.

Manual Reset Input: An input that asserts reset when pulled

low.

n Separate Watchdog output

n Separate Power Fail comparator

Power-Fail Input: A 1.225V threshold detector for power fail

warning, or to monitor a power supply other than V_CC

n Available in micro SMD package for minimum footprint

0.5% Reset threshold accuracy at room temperature

2% Reset threshold accuracy over temperature

extremes

Watchdog Timer: The WDI (Watchdog Input) monitors one of

the µP’s output lines for activity. If no output transition occurs

during the watchdog timeout period, the watchdog output

(WDO) pulls low.

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

n 28 µA V_CCsupply current

Applications

n Embedded Controllers and Processors

n Intelligent Instruments

n Automotive Systems

n Critical µP Power Monitoring

Typical Application

20011903

DS200119

www.national.com

12 3 4 5 6 7...13

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与LM3712YW2BPX308相关器件

型号	品牌	获取价格	描述	数据表
LM3712YW3BP308	NSC	获取价格	Microprocessor Supervisory Circuits with Separate Watchdog Timer Output, Power Fail Input
LM3712YW3BPX308	NSC	获取价格	Microprocessor Supervisory Circuits with Separate Watchdog Timer Output, Power Fail Input
LM3712YW4BP308	NSC	获取价格	Microprocessor Supervisory Circuits with Separate Watchdog Timer Output, Power Fail Input
LM3712YW4BPX308	NSC	获取价格	Microprocessor Supervisory Circuits with Separate Watchdog Timer Output, Power Fail Input
LM3713	NSC	获取价格	Microprocessor Supervisory Circuits with Separate Watchdog Timer Output, Power Fail Input
LM3713XEBP-308	TI	获取价格	2-CHANNEL POWER SUPPLY MANAGEMENT CKT, BGA9, MICRO, BUMP, SMD-9
LM3713XFBPX-308	TI	获取价格	2-CHANNEL POWER SUPPLY MANAGEMENT CKT, BGA9, MICRO, BUMP, SMD-9
LM3713XGBP-308	TI	获取价格	2-CHANNEL POWER SUPPLY MANAGEMENT CKT, BGA9, MICRO, BUMP, SMD-9
LM3713XJBP-308	TI	获取价格	2-CHANNEL POWER SUPPLY MANAGEMENT CKT, BGA9, MICRO, BUMP, SMD-9
LM3713XKBP-308	TI	获取价格	2-CHANNEL POWER SUPPLY MANAGEMENT CKT, BGA9, MICRO, BUMP, SMD-9

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