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供应微盟移动电源专用锂电池充电保护IC/ME4057与

价 格: 面议
功率:充电电流1A,4.2V
类型:其他IC
型号/规格:ME4057
品牌/商标:Microne/微盟
封装:SOP-8

 

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1,此产品为4.34V的浮充电压,专为高容量电池充电而设计。

2,经试产长期验证的品牌物料,品质保证,长期现货供应!

 

Features
Typical charge cycle(1000mAh battery)
Applications
Typical charge cycle(1000mAh battery)
●Cellular Telephones
●Digital Still Cameras
●MP3 Players
●Bluetooth Applications
●Portable Devices
●USB Bus-Powered Chargers
ME4057 is a complete constant-current/constant voltage
linear charger for single cell lithium-ion batteries. With a
thermally enhanced 8-PIN SOP package on the bottom
and low external component count make the ME4057
ideally suited for portable applications. Furthermore the
ME4057 is specifically designed to work within USB power
specifications.
No external sense resistor is needed and no blocking
diode is required due to the internal PMOSFET
architecture .Thermal feedback regulates the charge
current to limit the die temperature during high power
operation or high ambient temperature .The charge voltage
is fixed at 4.2V,and the charge current can be programmed
externally with a single resistor. The ME4057 automatically
terminates the charge cycle when the charge current drops
to 1/10th the programmed value after the final float voltage
is reached.
When the input supply (wall adapter or USB supply) is
removed the ME4057 automatically enters a low current
state dropping the battery drain current to less than
2μA.The ME4057 can be put into shutdown mode reducing
the supply current to 55μA.
Other features include Battery temperature monitor,
under-voltage lockout, automatic recharge and two status
pins to indicate charge and charge termination.
●Protection of battery cell reverse connection
● Programmable charge current up to 1A
●No MOSFET sense resistor or blocking diode
required
●Complete linear Charger in SOP8 Package for
single Cell Lithium-Ion Batteries.
●Constant-Current/Constant-Voltage operation
with thermal regulation to maximize Rate
Without risk of overheating.
● Preset 4.2V charge voltage with ±1% accuracy
● Automatic Recharge
● Two Status Indication for Charge status, no
battery and battery failure indicators
● C/10 charge termination
● 55μA supply current in shutdown
● 2.9V trickle current charge threshold
● Soft-Start limits inrush current
● Battery Temperature Sensing
● Available in SOP8-PP package

 

dzsc/19/2943/19294373.jpg

粤嘉鸿电子是从事电子元器件通路的一般纳税人企业。

        有多年的电源IC、MOSFET、三极管和肖特基等电子元器件的供应经验,是UTC(台湾友顺)、NCE(新洁能)、ZOWIE(智威科技)和芯龙的一线授权代理商。我们经营的产品广泛应用于开关电源、各类板卡、LED照明驱动电源、车载逆变电源、液晶电视电源、DVD和DVB电源、通信逆变电源、电动工具电源、移动电源、车充、旅行充电器和应急灯电源等诸多领域。
   我们的愿景:成为亚洲一流的电子元器件供应商。
   我们的价值观:“诚信、、用心、高效”。
   公司经营理念和方针:只卖优质产品、常用物料备现货、保持价格优势、持续改善产品供应。
   选择我们的六个理由:1、我们完全没有假货、劣质产品供应;2、我们供货稳定、及时,避免断货造成停工待料的损失;3、我们人员流动率极低,避免新老交替的麻烦;4、拥有香港公司和货仓,合作方式灵活;5、我们有良好的内控管理和ERP信息系统,有效降低出错率。6、有良好的技术支援能力

 

"

深圳市粤嘉鸿电子有限公司
公司信息未核实
  • 所属城市:广东 深圳
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1,此产品为4.34V的浮充电压,专为高容量电池充电而设计。2,经试产长期验证的品牌物料,品质保证,长期现货供应! FeaturesTypical charge cycle(1000mAh battery)ApplicationsTypical charge cycle(1000mAh battery)●Cellular Telephones●Digital Still Cameras●MP3 Players●Bluetooth Applications●Portable Devices●USB Bus-Powered ChargersME4057 is a complete constant-current/constant voltagelinear charger for single cell lithium-ion batteries. With athermally enhanced 8-PIN SOP package on the bottomand low external component count make the ME4057ideally suited for portable applications. Furthermore theME4057 is specifically designed to work within USB powerspecifications.No external sense resistor is needed and no blockingdiode is required due to the internal PMOSFETarchitecture .Thermal feedback regulates the chargecurrent to limit the die temperature during high poweroperation or high ambient temperature .The charge voltageis fixed at 4.2V,and the charge current can be programmedexternally...

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