Datasheet > MIC2777

MIC2777

更新时间： 2024-09-26 22:54:51

品牌	Logo	应用领域
麦瑞 - MICREL		监控
页数	文件大小	规格书
8页	377K
描述
Dual Micro-Power Low Voltage Supervisor Advance Information

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中文翻译

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MIC2777 数据手册

MIC2777

Micrel

MIC2777

Dual Micro-Power Low Voltage Supervisor

Advance Information

General Description

Features

TheMIC2777isadualpowersupplysupervisorthatprovides

under-voltagemonitoring,manualresetcapability,andpower-

on reset generation in a compact 5-pin SOT package. Fea-

tures include two under-voltage detectors, one fixed and one

adjustable, and both active-high and active-low reset out-

• Monitors two independent power supplies for under-

voltage conditions

• One fixed and one user adjustable input

• 1.5% theshold accuracy

• Choice of factory-programmed thresholds

• User-adjustable input can monitor supplies as low as

0.3V

• Generates 140ms (minimum) power-on RESET pulse

• Manual reset capability

puts. One under-voltage detector compares V against a

fixedthreshold.Tenfactory-programmedthresholdsareavail-

able. The other under-voltage detector is user-adjustable.

The reset outputs are asserted for no less than 140ms at

• Both active-high and active-low RESET outputs

power-on and any time V or the input voltage drops below

• Input may be pulled above V (abs. max.)

the corresponding reference voltage. They remain asserted

• /RST output valid down to 1.2V

• Ultra-low supply current, 3.5µA typical

• Rejects brief input transients

for the timeout period after the input voltage and V subse-

quently rise back above the threshold boundaries. A reset

can be generated at any time by pulling down on the adjust-

able input. Hysteresis is included to prevent chattering due to

noise. Typical supply current is a low 3.5µA.

• IttyBitty™ 5-lead SOT-23 package

Applications

• Monitoring processor, ASIC, or FPGA core and I/O

voltages

• Computer systems

• PDAs, hand-held PCs

• Embedded controllers

• Telecommunications systems

• Power supplies

• Wireless / Cellular systems

• Networking hardware

Ordering Information

Part Number

Marking Junction Temp. Range

UNXX –40°C to +85°C

Package

MIC2777-XXBM5

SOT-23-5

Typical Application

MICROPROCESSOR

V_CORE

V_I/O

V_CORE1.0V

V_I/O1.8V

MIC2777

/RESET

/RST

VDD

GND

RST

GND

Manual

Reset

OTHER

LOGIC

Typical Application

IttyBitty™ is a trademark of Micrel, Inc.

Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com

September 29, 2000

MIC2777

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中文翻译

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与MIC2777相关器件

型号	品牌	获取价格	描述	数据表
MIC2777_05	MICREL	获取价格	Dual Micro-Power Low Voltage Supervisor
MIC2777-17YM5-TR	MICROCHIP	获取价格	2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
MIC2777-26YM5-TR	MICROCHIP	获取价格	2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
MIC2777-29YM5-TR	MICROCHIP	获取价格	2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
MIC2777-31YM5-TR	MICROCHIP	获取价格	2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
MIC2777-44YM5-TR	MICROCHIP	获取价格	2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
MIC2777-46YM5-TR	MICROCHIP	获取价格	2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
MIC2777-XXBM5	MICREL	获取价格	Dual Micro-Power Low Voltage Supervisor Advance Information
MIC2778	MICREL	获取价格	Voltage Monitor with Adjustable Hysteresis Preliminary Information
MIC2778	MICROCHIP	获取价格	The MIC2779 is a voltage monitor--uniquely designed to detect two separate voltage thresho

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