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參數(shù)資料
型號(hào): MIC79050
廠商: Micrel Semiconductor,Inc.
英文描述: Simple Lithium-Ion Battery Charger(鋰電池充電器)
中文描述: 簡(jiǎn)單的鋰離子電池充電器(鋰電池充電器)
文件頁(yè)數(shù): 1/20頁(yè)
文件大小: 103K
代理商: MIC79050
June 2000
1
MIC79050
MIC79050
Micrel
Typical Applications
Li-Ion
Cell
4.2V
±
0.75% Over Temp
IN
BAT
GND
MIC79050-4.2BS
Regulated or
unregulated
wall adapter
Simplest Battery Charging Solution
4.2V
±
0.75%
Li-Ion
Cell
External PWM*
IN
EN
BAT
FB
GND
MIC79050-4.2BMM
*See Applications Information
Regulated or
unregulated
wall adapter
Pulse-Charging Application
MIC79050
Simple Lithium-Ion Battery Charger
Preliminary Information
General Description
The MIC79050 is a simple single-cell lithium-ion battery
charger. It includes an on-chip pass transistor for high preci-
sion 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.
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
thermally-enhanced MSO-8, SO-8, and SOT-223 packages.
The 8-pin versions also come equipped with enable and
feedback inputs. All versions are specified over the tempera-
ture range of –40
°
C to +125
°
C.
Features
High accuracy charge voltage:
±
0.75% over -5
°
C to + 60
°
C (Li-ion charging
temperature range)
“Zero” off-mode current
10
μ
A 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 SOP-8, and SOT-223
Pulse charging capability
Applications
Li-ion battery charger
Celluar phones
Palmtop computers
PDAs
Self charging battery packs
Micrel, Inc. 1849 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 944-0970 http://www.micrel.com
Ordering Information
Part Number
MIC79050-4.2BS
MIC79050-4.2BM
MIC79050-4.2BMM
Voltage
4.2V
4.2V
4.2V
Junct. Temp. Range
–40
°
C to +125
°
C
–40
°
C to +125
°
C
–40
°
C to +125
°
C
Package
SOT-223
SOP-8
MSOP-8
相關(guān)PDF資料
PDF描述
MIC79050-4.2BMM Simple Lithium-Ion Battery Charger Preliminary Information
MIC79050-4.2BS GT 48C 48#16 SKT RECP WALL RM
MICONDUCTOR 8-bit Proprietary Microcontrollers
MICRF001 QwikRadiotm Receiver/Data Demodulator Advance Information
MICRF001BM QwikRadiotm Receiver/Data Demodulator Advance Information
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MIC79050_05 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Simple Lithium-Ion Battery Charger
MIC79050-4.2BM 功能描述:IC BATTERY CHARGER LI-ION 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 功能:充電管理 電池化學(xué):鋰離子(Li-Ion)、鋰聚合物(Li-Pol) 電源電壓:3.75 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A,SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:剪切帶 (CT) 產(chǎn)品目錄頁(yè)面:669 (CN2011-ZH PDF) 其它名稱:MCP73831T-2ACI/OTCT
MIC79050-4.2BM TR 功能描述:IC BATTERY CHARGER LI-ION 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 功能:充電管理 電池化學(xué):鋰離子(Li-Ion)、鋰聚合物(Li-Pol) 電源電壓:3.75 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A,SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:剪切帶 (CT) 產(chǎn)品目錄頁(yè)面:669 (CN2011-ZH PDF) 其它名稱:MCP73831T-2ACI/OTCT
MIC79050-4.2BMM 功能描述:IC BATTERY CHARGER LI-ION 8-MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 功能:充電管理 電池化學(xué):鋰離子(Li-Ion)、鋰聚合物(Li-Pol) 電源電壓:3.75 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A,SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:剪切帶 (CT) 產(chǎn)品目錄頁(yè)面:669 (CN2011-ZH PDF) 其它名稱:MCP73831T-2ACI/OTCT
MIC79050-4.2BMM TR 功能描述:IC BATTERY CHARGER LI-ION 8-MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 功能:充電管理 電池化學(xué):鋰離子(Li-Ion)、鋰聚合物(Li-Pol) 電源電壓:3.75 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A,SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:剪切帶 (CT) 產(chǎn)品目錄頁(yè)面:669 (CN2011-ZH PDF) 其它名稱:MCP73831T-2ACI/OTCT
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