Datasheet > MAX825LEUK-TR

MAX825LEUK-TR

更新时间： 2024-11-12 04:52:03

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
14页	729K
描述
POWER SUPPLY SUPPORT CKT

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MAX825LEUK-TR 数据手册

MAX823/4/5

Voltage Supervisor with Watchdog Timer

and Manual Reset

General Description

Features

The MAX823/4/5 voltage supervisory circuits combine low-

current, manual reset input, watchdog timer, active-high

and active-low push-pull outputs. The reset outputs are

asserted and held when the supply voltage falls below the

factory-programmed threshold voltage, when the /MR pin

is pulled low, or if the watchdog times out. Reset is

asserted for the reset timeout delay after the supply

voltage increases above the rising threshold voltage or

when manual reset input is asserted high.

• Precision 1.665V to 4.625V power supply monitor

• ±0.5% threshold accuracy at T_A= +25°C

• ±1.5% threshold accuracy from T_A= –40°C to +125°C

• 3.8µA supply current (S,R,T,W,Y,Z options)

• 4.8µA supply current (L,M options)

• Manual reset input (MAX823/5)

• 140ms (min.) reset timeout period

• 1.6s (typ.) watchdog timeout period

The MAX823/4/5 features an integrated pull-up resistor on

the /MR pin. An active-low push-pull reset output (/RESET)

and an active-high reset output (RESET) provide flexibility

when interfacing with various microcontrollers, PMICs, or

load switches. The watchdog input can be left

unconnected for applications that do not require watchdog

monitoring.

• Active-high and active-low push-pull outputs

• Guaranteed reset output valid to V_CC= 1V

• −40°C to +125°C junction temperature range

• 5-pin SOT23 and SC70 packages

• 8x lower watchdog input current than competition

Applications

The MAX823/4/5 consumes a quiescent current of only

3.8µA and is offered in standard SOT23-5 and SC70-5

packages. It is rated for the –40°C to +125°C temperature

range.

• Computers and controllers

• Embedded controllers

• Intelligent instruments

• Automotive systems

• Critical µP monitoring

Datasheets and support documentation are available on

Micrel’s website at: www.micrel.com.

• Portable/battery-powered equipment

Typical Application

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

Revision 2.0

February 26, 2015

12 3 4 5 6 7...14

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与MAX825LEUK-TR相关器件

型号	品牌	获取价格	描述	数据表
MAX825LEXK	MICREL	获取价格	Voltage Supervisor with Watchdog Timer and Manual Reset
MAX825LEXK+T	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, +4.63VV, BICMOS, PDSO5, ROHS COMPLIANT, SC
MAX825LEXK-T	MAXIM	获取价格	Analog IC
MAX825LEXKT5	MICROCHIP	获取价格	POWER SUPPLY SUPPORT CKT
MAX825M	MAXIM	获取价格	5-Pin Microprocessor Supervisory Circuits With Watchdog Timer and Manual Reset
MAX825MEUK	MAXIM	获取价格	Voltage Detector
MAX825MEUK	MICREL	获取价格	Voltage Supervisor with Watchdog Timer and Manual Reset
MAX825MEUK+	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, +4.38VV, BICMOS, PDSO5, SOT-23, 5 PIN
MAX825MEUK+T	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, +4.38VV, BICMOS, PDSO5, ROHS COMPLIANT, MO
MAX825MEUK-T	MAXIM	获取价格	Analog IC

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