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企业档案
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- 会员类型:普通会员
- 地址:深圳福田区华强北新亚洲电子城二期国利大厦1930室(柜台新亚洲二期N3B060)
- 传真:13418818803
- E-mail:lyjdz@hotmail.com
产品分类
产品信息
深圳市凌永健电子优势代理分销美国AD亚德诺、LT凌力尔特、XILINX赛灵思、MAX美信、TI德洲仪器、MICROCHIP微芯 包括:运算放大器、逻辑电路、接口电路、电源电路、编解码器、通讯电路、传感器、显示电路、微处理器、存储器、单片机、可编程逻辑、功率驱动器等产品涉及国防军工业、通讯行业、铁路、安防、交通控制系统、汽车电子、开关电源、仪器仪表等
专营美国ADI、LTC、XILINX、进口 原装 !自已大量热卖现货库存,支持实单批量价格好谈,欢迎询价,洽谈!
产口参数:
LTC4002-4.2 - Standalone Li-Ion Switch Mode Battery Charger
封装
如需了解完整与的封装信息及图例,请查阅我们的封装网页。
DFN-10, SO-8
LTC4002-4.2 - Standalone Li-Ion Switch Mode Battery Charger
特点
-
Wide Input Supply Range:
4.7V to 22V – 4.2 Version
8.9V to 22V – 8.4 Version - High Efficiency Current Mode PWM Controller with 500kHz Switching Frequency
- ±1% Charge Voltage Accuracy
- End-of-Charge Current Detection Output
- 3 Hour Charge Termination Timer
- Constant Switching Frequency for Minimum Noise
- ±5% Charge Current Accuracy
- Low 10μA Reverse Battery Drain Current
- Automatic Battery Recharge
- Automatic Shutdown When Input Supply is Removed
- Automatic Trickle Charging of Low Voltage Batteries
- Battery Temperature Sensing and Charge Qualification
- Stable with Ceramic Output Capacitor
- 8-Lead SO and 10-Lead DFN Packages
典型应用
描述
The LTC®4002 is a complete battery charger controller for one (4.2V) or two (8.4V) cell lithium-ion batteries. With a 500kHz switching frequency, the LTC4002 provides a small, simple and efficient solution to fast charge Li-Ion batteries from a wide range of supply voltages. An external sense resistor sets the charge current with ±5% accuracy. An internal resistor divider and precision reference set the final float voltage to 4.2V per cell with ±1% accuracy.
When the input supply is removed, the LTC4002 automatically enters a low current sleep mode, dropping the battery drain current to 10μA. An internal comparator detects the near end-of-charge condition while an internal timer sets the total charge time and terminates the charge cycle. After the charge cycle ends, if the battery voltage drops below 4.05V per cell, a new charge cycle will automatically begin.
The LTC4002 is available in the 8-lead SO and 10-lead DFN packages.
应用
- Portable Computers
- Charging Docks
- Handheld Instruments
深圳市凌永健电子有限公司位于深圳华强北电子街,成立于2007年,拥有优势的原装IC原厂订货渠道,庞大的现货库存及合理的价格做为优势。推广优良供应方案,为客户提供全面方位的优质IC产品和增值服务与支持。在激烈的市场竞争中,以独特的经营方式,优势可信的订货渠道,优质的服务,创出了一套属于我们的行业优势。公司货源质量保证,数量充足,热卖型号长期备有大量现货,在满足您需求的同时,报价合理准确快速、交货及时准确是我们的承诺。致力打造电子元器件行业的,成为电子元件市场值得信赖的供应商。欢迎您来电/函垂询,我们会以合理的价格、可靠的质量,为客户提供热情周到的服务,以满足客户的需求:主要为工厂 、企业、学校、研究机构、户样片、提供所需的芯片产品:运算放大器、逻辑电路、接口电路、电源电路、编解码器、通讯电路、传感器、显示电路、微处理器、存储器、单片机、可编程逻辑、功率驱动器等电子元器件,产品涉及国防军工业、通讯行业、铁路、安防、交通控制系统、汽车电子、开关电源、仪器仪表等各大领域。诚信是合作的前提,同时也是合作成功的关键,我们期待着与您的合作! 优势专营代理分销美国AD亚德诺、LT凌力尔特、XILINX赛灵思、MAX美信、TI德洲仪器、MICROCHIP微芯 MCU单片机芯片主打优势现货AD LT、XILINX TI MAX 等各大品牌电子元件!