LTC4120

推荐新设计使用

无线功率接收器和 400mA 降压型电池充电器

产品模型
8
产品技术资料帮助

ADI公司所提供的资料均视为准确、可靠。但本公司不为用户在应用过程中侵犯任何专利权或第三方权利承担任何责任。技术指标的修改不再另行通知。本公司既没有含蓄的允许,也不允许借用ADI公司的专利或专利权的名义。本文出现的商标和注册商标所有权分别属于相应的公司。

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产品详情

  • 动态协调控制可优化宽耦合范围内的无线充电
  • 宽输入电压范围 (12.5V 至 40V)
  • 可调的电池浮动电压 (3.5V 至 11V)
  • 固定的 4.2V 浮动电压选项 (LTC4120-4.2)
  • 采用单个电阻器设置的 50mA 至 400mA 充电电流
  • ±1% 反馈电压准确度
  • 准确度为 5% 的可编程充电电流
  • 无需微处理器
  • 无变压器磁芯
  • 耐热性能增强型、扁平 16 引脚 (3mm x 3mm x 0.75mm) QFN 封装
LTC4120
无线功率接收器和 400mA 降压型电池充电器
LTC4120-4120-4.2 Application Circuit LTC4120-4120-4.2 Pin Configuration LTC4120-4120-4.2 Pin Configuration LTC4120-4120-4.2 Performance Graph
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参考资料

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硬件生态系统

部分模型 产品周期 描述
按钮控制器 1
LTC2956 推荐新设计使用 具按钮控制功能的唤醒定时器
无线功率传输 1
LTC4125 推荐新设计使用 5W AutoResonant 无线功率发送器
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工具及仿真模型

LTspice

LTspice®是一款强大高效的免费仿真软件、原理图采集和波形观测器,为改善模拟电路的仿真提供增强功能和模型。


评估套件

eval board
DC2386A-B

采用LTC4125EUFD和LTC4120EUD的无线电力传输演示套件

产品详情

演示套件 DC2386A 包含 DC2330A LTC4125EUFD 演示板、DC2445A-A/DC2445A-B LTC4120EUD 演示板以及具有各种不同长度的支架。DC2330A 可以向接收板提供高达1.68W的功率,发射线圈和接收线圈之间的间距长达12mm。

eval board
DC2181A-B

LTC4120EUD Demo Board | Wireless Power Receiver and 400mA Buck Battery Charger with Adjustable Charge Voltage and Separate Receiver Coil. DC2181A-B Requires a Transmitter such as DC1969A-B or The Proxi-Point Power-by-Proxi transmitter.

产品详情

Demonstration circuit 2181A-B features the LTC4120EUD wireless power receiver with 400mA synchronous step-down CC/CV battery charger. The DC2181 is used with the DC1968A wireless power transmitter or the PowerByProxi ProxiPoint transmitter. Either can deliver 2W to the DC2181, with up to 10mm spacing between the transmitter and the receive coil. The basic transmitter doesn’t support foreign metal object detection.

eval board
DC2181A-A

LTC4120EUD-4.2 Demo Board | Wireless Power Receiver and 400mA Buck Battery Charger with Fixed 4.2V charge voltage and separate receive coil. DC2181A-A requires a transmitter such as DC1969A-B or the Proxi-Point Power-by-Proxi transmitter.

产品详情

Demonstration circuit 2181A-A features the LTC4120-4.2 wireless power receiver with 400mA synchronous step-down CC/CV (4.2V charge voltage) battery charger. The DC2181 is used with the DC1968A wireless power transmitter or the PowerByProxi ProxiPoint transmitter. Either can deliver 2W to the DC2181, with up to 10mm spacing between the transmitter and the receive coil. The basic transmitter doesn’t support foreign metal object detection.



DC2386A-B
采用LTC4125EUFD和LTC4120EUD的无线电力传输演示套件
DC2386A-B Demo Board DC2386A-B Demo Board DC2386A-B Demo Board DC2330A - Schematic DC2445A - Schematic
DC2181A-B
LTC4120EUD Demo Board | Wireless Power Receiver and 400mA Buck Battery Charger with Adjustable Charge Voltage and Separate Receiver Coil. DC2181A-B Requires a Transmitter such as DC1969A-B or The Proxi-Point Power-by-Proxi transmitter.
DC2181A - Schematic
DC2181A-A
LTC4120EUD-4.2 Demo Board | Wireless Power Receiver and 400mA Buck Battery Charger with Fixed 4.2V charge voltage and separate receive coil. DC2181A-A requires a transmitter such as DC1969A-B or the Proxi-Point Power-by-Proxi transmitter.
DC2181A - Schematic

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