MAX811-EUS-T

更新时间： 2024-09-24 12:56:23

品牌	Logo	应用领域
美信 - MAXIM		监控
页数	文件大小	规格书
8页	119K
描述
4-Pin uP Voltage Monitors with Manual Reset Input

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中文翻译

获取价格

数据手册

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MAX811-EUS-T 数据手册

19-0411; Rev 3; 3/99

4-Pin µP Voltage Monitors

with Manual Reset Input

________________General Description

____________________________Features

The MAX811/MAX812 are low-power microprocessor

(µP) supervisory circuits used to monitor power sup-

plies in µP and digital systems. They provide excellent

circuit reliability and low cost by eliminating external

components and adjustments when used with 5V-

powered or 3V-powered circuits. The MAX811/MAX812

also provide a debounced manual reset input.

ꢀ Precision Monitoring of 3V, 3.3V, and 5V

Power-Supply Voltages

ꢀ 6µA Supply Current

ꢀ 140ms Min Power-On Reset Pulse Width;

RESET Output (MAX811), RESET Output (MAX812)

ꢀ Guaranteed Over Temperature

These devices perform a single function: They assert a

reset signal whenever the V

supply voltage falls

ꢀ Guaranteed RESET Valid to V

= 1V (MAX811)

below a preset threshold, keeping it asserted for at

least 140ms after V has risen above the reset thresh-

ꢀ Power-Supply Transient Immunity

ꢀ No External Components

ꢀ 4-Pin SOT143 Package

old. The only difference between the two devices is that

the MAX811 has an active-low RESET output (which is

guaranteed to be in the correct state for V

down to

1V), while the MAX812 has an active-high RESET out-

put. The reset comparator is designed to ignore fast

_______________Ordering Information

transients on V . Reset thresholds are available for

PART*

TEMP. RANGE

-40°C to +85°C

PIN-PACKAGE

4 SOT143

operation with a variety of supply voltages.

MAX811_EUS-T

MAX812_EUS-T

Low supply current makes the MAX811/MAX812 ideal

for use in portable equipment. The devices come in a

4-pin SOT143 package.

4 SOT143

* This part offers a choice of five different reset threshold

voltages. Select the letter corresponding to the desired

nominal reset threshold voltage, and insert it into the blank

to complete the part number.

________________________Applications

Computers

RESET THRESHOLD

Controllers

SUFFIX

VOLTAGE (V)

4.63

Intelligent Instruments

Critical µP and µC Power Monitoring

Portable/Battery-Powered Equipment

4.38

3.08

2.93

2.63

___________Typical Operating Circuit

___________________Pin Configuration

TOP VIEW

GND

MAX811

MAX812

µP

MAX811

MAX812

RESET

INPUT

RESET

(RESET)

(RESET) RESET

GND

SOT143

PUSHBUTTON

SWITCH

( ) ARE FOR MAX812

NOTE: SEE LAST PAGE FOR MARKING INFORMATION.

________________________________________________________________ Maxim Integrated Products

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.

For small orders, phone 1-800-835-8769.

12 3 4 5 6 7 8

中文翻译

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与MAX811-EUS-T相关器件

型号	品牌	获取价格	描述	数据表
MAX811LCUS-T	MAXIM	获取价格	Voltage Detector
MAX811LEUS+T	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, +4.63VV, PDSO4, LEAD FREE, TO-253, SOT-143
MAX811LEUS-T	MAXIM	获取价格	Voltage Detector
MAX811-MAX812	MAXIM	获取价格	4-Pin レP Voltage Monitors with Manual Reset I
MAX811MCUS-T	MAXIM	获取价格	Voltage Detector
MAX811MEUS	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, +4.38VV, PDSO4, SOT-143, 4 PIN
MAX811MEUS+	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, +4.38VV, PDSO4, SOT-143, 4 PIN
MAX811MEUS+T	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, +4.38VV, PDSO4, LEAD FREE, TO-253, SOT-143
MAX811MEUS-T	MAXIM	获取价格	Voltage Detector
MAX811RCUS-T	MAXIM	获取价格	Voltage Detector

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