Datasheet > LM809-2.45MDC

LM809-2.45MDC

更新时间： 2024-02-09 23:07:51

品牌	Logo	应用领域
美国国家半导体 - NSC		/
页数	文件大小	规格书
8页	177K
描述
IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, UUC, DIE, Power Management Circuit

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LM809-2.45MDC 技术参数

生命周期：	Obsolete	零件包装代码：	DIE
包装说明：	DIE	Reach Compliance Code：	unknown
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.29	Is Samacsys：	N
其他特性：	POWER-ON RESET	可调阈值：	NO
模拟集成电路 - 其他类型：	POWER SUPPLY SUPPORT CIRCUIT	JESD-30 代码：	X-XUUC-N
信道数量：	1	功能数量：	1
最高工作温度：	105 °C	最低工作温度：	-40 °C
封装主体材料：	UNSPECIFIED	封装代码：	DIE
封装形状：	UNSPECIFIED	封装形式：	UNCASED CHIP
认证状态：	Not Qualified	最大供电电压 (Vsup)：	5.5 V
最小供电电压 (Vsup)：	1 V	标称供电电压 (Vsup)：	3 V
表面贴装：	YES	温度等级：	INDUSTRIAL
端子形式：	NO LEAD	端子位置：	UPPER
Base Number Matches：	1

LM809-2.45MDC 数据手册

September 2002

LM809/LM810

3-Pin Microprocessor Reset Circuits

General Description

Features

n Precise monitoring of 3V, 3.3V, and 5V supply voltages

n Superior upgrade to MAX809/810

The LM809/810 microprocessor supervisory circuits can be

used to monitor the power supplies in microprocessor and

digital systems. They provide a reset to the microprocessor

during power-up, power-down and brown-out conditions.

n Fully specified over temperature

n 140ms min. Power-On Reset pulse width, 240ms typical

Active-low RESET Output (LM809)

Active-high RESET Output (LM810)

n Guaranteed RESET Output valid for V_CC≥1V

n Low Supply Current, 15µA typ.

The function of the LM809/810 is to monitor the V_CCsupply

voltage, and assert a reset signal whenever this voltage

declines below the factory-programmed reset threshold. The

reset signal remains asserted for 240ms after V_CCrises

above the threshold. The LM809 has an active-low RESET

output, while the LM810 has an active-high RESET output.

n Power supply transient immunity

Seven standard reset voltage options are available, suitable

for monitoring 5V, 3.3V, and 3V supply voltages.

Applications

n Microprocessor Systems

n Computers

With a low supply current of only 15µA, the LM809/810 are

ideal for use in portable equipment. The LM809/LM810 are

available in the 3-pin SOT23 package and in the 6-Lead LLP

package.

n Controllers

n Intelligent Instruments

n Portable/Battery-Powered Equipment

n Automotive

Typical Application Circuit

10105701

Connection Diagrams

10105702

( ) are for LM810

10105715

Top View

See NS package Number LDB06A

( ) are for LM810

DS101057

www.national.com

12 3 4 5 6 7 8

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与LM809-2.45MDC相关器件

型号	品牌	获取价格	描述	数据表
LM809-2.45MWC	NSC	获取价格	IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, UUC, WAFER, Power Management Circuit
LM809-2.63MDC	NSC	获取价格	IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, UUC, DIE, Power Management Circuit
LM809-2.63MWC	NSC	获取价格	IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, UUC, WAFER, Power Management Circuit
LM809-2.93MDC	NSC	获取价格	IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, UUC, DIE, Power Management Circuit
LM809-3.08MDC	NSC	获取价格	IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, UUC, DIE, Power Management Circuit
LM809-4.38MDC	NSC	获取价格	IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, UUC, DIE, Power Management Circuit
LM809-4.38MWC	NSC	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, UUC, WAFER
LM809-4.63MDC	NSC	获取价格	IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, UUC, DIE, Power Management Circuit
LM809-4.63MWC	NSC	获取价格	IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, UUC, WAFER, Power Management Circuit
LM809LD-2.63	NSC	获取价格	3-Pin Microprocessor Reset Circuits

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