Datasheet > MIC2779H-1YM5-TR

MIC2779H-1YM5-TR

更新时间： 2024-11-18 20:04:55

品牌	Logo	应用领域
美国微芯 - MICROCHIP		光电二极管
页数	文件大小	规格书
6页	149K
描述
1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5

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MIC2779H-1YM5-TR 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
包装说明：	LSSOP,	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.65	可调阈值：	YES
模拟集成电路 - 其他类型：	POWER SUPPLY SUPPORT CIRCUIT	JESD-30 代码：	R-PDSO-G5
JESD-609代码：	e4	长度：	2.91 mm
湿度敏感等级：	1	信道数量：	1
功能数量：	1	端子数量：	5
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	LSSOP
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：	260	认证状态：	Not Qualified
座面最大高度：	1.45 mm	最大供电电压 (Vsup)：	5.5 V
最小供电电压 (Vsup)：	1.5 V	表面贴装：	YES
温度等级：	INDUSTRIAL	端子面层：	Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：	GULL WING	端子节距：	0.95 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	40
宽度：	1.625 mm	Base Number Matches：	1

MIC2779H-1YM5-TR 数据手册

MIC2779

Micrel, Inc.

MIC2779

Voltage Monitor with Adjustable Hysteresis

General Description

Features

The MIC2779 is a voltage monitor—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.

• Optimized for PDAs, cellular telephones, pagers,

and other battery-powered devices

• Independently adjustable high- and

low-voltage thresholds

• Internal logic prevents battery-voltage-ﬂuctuation chatter

• High ±2% voltage threshold accuracy; 1% available

• Built in 140ms (minimum) delay deglitches output

• Extremely low 1µA typical supply current

• For applications requiring open-drain output, see

MIC2778/MIC833

High- and low-voltage thresholds can be adjusted inde-

pendently, allowing for wide hysteresis. Voltage detection

thresholds are accurate to 2%.

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.

Internallogicpreventstheoutputfromchatteringduetobattery

recovery or load removal. The output is asserted for 140ms

(minimum) when a fresh battery is inserted. For applications

requiring open-drain output, see MIC2778/MIC833.

• Immune to brief power supply transients

• 5-pin SOT-23 package

Applications

• PDAs

The IC’s power supply input is separate from the detector

inputs, allowing the MIC2779 to be powered from a down-

stream supply, such a boost converter. Supply current is

extremely low (1µA, typical), making it ideal for portable

applications.

• Pagers

• Cordless phones

• Consumer electronics

• Embedded controllers

• Personal electronics

Ahigh-precision 1% grade is available. The MIC2779 is sup-

plied in Micrel’s IttyBitty™ 5-pin SOT-23-5 package.

Typical Application

V_OUT

3.0V

MIC5207-3.0BM5

OUT

BYP

GND

470pF

MIC2779L

Li-Ion

Cell

4.7µF

604k

VDD

LTH

/RST

56k

HTH GND

340k

V_BAT(hi)= 3.6V

V_BAT(lo)= 3.1V

Cellular Telephone Battery Monitor

IttyBitty™ is a trademark of Micrel, Inc.

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

January 2006

MIC2779

12 3 4 5 6

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与MIC2779H-1YM5-TR相关器件

型号	品牌	获取价格	描述	数据表
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
MIC2779L-2BM5	MICREL	获取价格	Voltage Monitor with Adjustable Hysteresis Preliminary Information
MIC2779L-2BM5	ROCHESTER	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5, SOT-23, 5 PIN
MIC2779L-2BM5TR	MICREL	获取价格	Power Supply Support Circuit, Adjustable, 1 Channel, PDSO5, SOT-23, 5 PIN
MIC2782	MICROCHIP	获取价格	The MIC2782 is a two input, two output push button reset IC. It will generate a reset puls

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