Datasheet > MIC2779

MIC2779

更新时间： 2024-11-19 14:54:55

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
16页	531K
描述
The MIC2779 is a voltage monitor--uniquely designed to detect two separate voltage thresholds--com

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MIC2779 数据手册

MIC2779

Voltage Monitor with Adjustable Hysteresis

Features

General Description

• Optimized for PDAs, Cellular Telephones, Pagers,

and Other Battery-Powered Devices

The MIC2779 is a voltage monitor that is uniquely

designed to detect two separate voltage thresholds

combined with a delay generator and logic. It is

designed for monitoring the battery supply of portable

digital systems, particularly PDAs, pagers, and cellular

telephones.

• Independently Adjustable High- and Low-Voltage

Thresholds

• Internal Logic Prevents Battery Voltage

Fluctuation Chatter

High- and low-voltage thresholds can be adjusted

independently, allowing for wide hysteresis. Voltage

detection thresholds are accurate to 2%.

• High ±2% Voltage Threshold Accuracy

• Built-In 140 ms (Minimum) Delay Deglitches

Output

If the battery voltage falls below the low-voltage

threshold, the output /RST or RST is asserted and

latched, preventing system operation until the battery is

replaced or recharged. Internal logic prevents the

output from chattering due to battery recovery or load

removal. The output is asserted for 140 ms (minimum)

when a fresh battery is inserted. For applications

requiring open-drain output, see MIC2778/MIC833.

• Extremely Low 1 µA Typical Supply Current

• For Applications that Require Open-Drain Output,

See MIC2778/MIC833

• Immune to Brief Power Supply Transients

• Available in 5-Lead SOT23 Package

Applications

• PDAs

The IC’s power supply input is separate from the

detector inputs, allowing the MIC2779 to be powered

from a downstream supply, such a boost converter.

Supply current is extremely low (1 μA, typical), making

it ideal for portable applications. The MIC2779 is

supplied in a 5-lead SOT23 package.

• Pagers

• Cordless Phones

• Consumer Electronics

• Embedded Controllers

• Personal Electronics

Package Types

MIC2779H

SOT23-5 (M5)

(Top View)

MIC2779L

SOT23-5 (M5)

(Top View)

LTH GND HTH

RST

VDD

/RST

VDD

 2018 Microchip Technology Inc.

DS20006116A-page 1

12 3 4 5 6 7...16

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与MIC2779相关器件

型号	品牌	获取价格	描述	数据表
MIC2779_06	MICREL	获取价格	Voltage Monitor with Adjustable Hysteresis
MIC2779H-1BM5	MICREL	获取价格	Voltage Monitor with Adjustable Hysteresis Preliminary Information
MIC2779H-1BM5TR	ROCHESTER	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5, SOT-23, 5 PIN
MIC2779H-1YM5-TR	MICROCHIP	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
MIC2779H-2BM5	MICREL	获取价格	Voltage Monitor with Adjustable Hysteresis Preliminary Information
MIC2779H-2BM5	ROCHESTER	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5, SOT-23, 5 PIN
MIC2779H-2BM5TR	MICREL	获取价格	Power Supply Support Circuit, Adjustable, 1 Channel, PDSO5, SOT-23, 5 PIN
MIC2779L-1BM5	MICREL	获取价格	Voltage Monitor with Adjustable Hysteresis Preliminary Information
MIC2779L-1BM5	ROCHESTER	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5, SOT-23, 5 PIN
MIC2779L-1YM5-TR	MICROCHIP	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5

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