Datasheet > MIC79050_05

MIC79050_05

更新时间： 2024-11-21 04:15:43

品牌	Logo	应用领域
麦瑞 - MICREL		电池
页数	文件大小	规格书
14页	280K
描述
Simple Lithium-Ion Battery Charger

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MIC79050_05 数据手册

MIC79050

Micrel, Inc.

MIC79050

Simple Lithium-Ion Battery Charger

General Description

Features

TheMIC79050isasimplesingle-celllithium-ionbatterychar-

ger. It includes an on-chip pass transistor for high precision

charging. Featuring ultrahigh precision (+0.75% over the Li-

ion battery charging temperature range) and “zero” off mode

current, the MIC79050 provides a very simple, cost effective

solution for charging lithium-ion battery.

• High accuracy charge voltage:

±0.75% over -5°C to + 60°C (Li-ion charging

temperature range)

• “Zero” off-mode current

• 10µA reverse leakage

• Ultralow 380mV dropout at 500mA

• Wide input voltage range

• Logic controlled enable input (8-pin devices only)

• Thermal shutdown and current limit protection

• Power MSOP-8, Power SOIC-8, and SOT-223

• Pulse charging capability

Other features of the MIC79050 include current limit and

thermal shutdown protection. In the event the input voltage

to the charger is disconnected, the MIC79050 also provides

minimal reverse-current and reversed-battery protection.

The MIC79050 is a ﬁxed 4.2V device and comes in the ther-

mally-enhanced MSO-8, SO-8, and SOT-223 packages. The

8-pinversionsalsocomeequippedwithenableandfeedback

inputs. All versions are speciﬁed over the temperature range

of –40°C to +125°C.

Applications

• Li-ion battery charger

• Celluar phones

• Palmtop computers

• PDAs

• Self charging battery packs

Ordering Information

Part Number

Junction

Temp. Range

Voltage

Package

Standard

Pb-Free

MIC79050-4.2BS

MIC79050-4.2BM

MIC79050-4.2BMM

MIC79050-4.2YS

MIC79050-4.2YM

MIC79050-4.2YMM

4.2V

–40ºC to +125ºC

SOT-223-3

SOIC-8

MSOP-8

Typical Applications

MIC79050-4.2BS

IN BAT

4.2V 0.75% Over Temp

Regulated or

unregulated

wall adapter

Li-Ion

Cell

GND

Simplest Battery Charging Solution

Regulated or

unregulated

wall adapter

MIC79050-4.2BMM

4.2V 0.75%

BAT

Li-Ion

Cell

External PWM*

GND

*See Applications Information

Pulse-Charging 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

August 2005

MIC79050

12 3 4 5 6 7...14

中文翻译

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与MIC79050_05相关器件

型号	品牌	获取价格	描述	数据表
MIC79050-4.2BM	MICREL	获取价格	Simple Lithium-Ion Battery Charger Preliminary Information
MIC79050-4.2BMM	MICREL	获取价格	Simple Lithium-Ion Battery Charger Preliminary Information
MIC79050-4.2BMMTR	MICROCHIP	获取价格	Battery Charge Controller, 1A, PDSO8, MSOP-8
MIC79050-4.2BS	MICREL	获取价格	Simple Lithium-Ion Battery Charger Preliminary Information
MIC79050-4.2YM	MICROCHIP	获取价格	1A BATTERY CHARGE CONTROLLER, PDSO8
MIC79050-4.2YMM	MICROCHIP	获取价格	1A BATTERY CHARGE CONTROLLER, PDSO8
MIC79050-4.2YMMTR	MICROCHIP	获取价格	1A BATTERY CHARGE CONTROLLER, PDSO8, LEAD FREE, MSOP-8
MIC79050-4.2YMM-TR	MICROCHIP	获取价格	1A BATTERY CHARGE CONTROLLER, PDSO8
MIC79050-4.2YMTR	MICROCHIP	获取价格	1A BATTERY CHARGE CONTROLLER, PDSO8, LEAD FREE, SOIC-8
MIC79050-4.2YMTR	MICREL	获取价格	1A BATTERY CHARGE CONTROLLER, PDSO8, LEAD FREE, SOIC-8

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