MAX20047

双路、3A USB DCP充电器

业界最小的双路、3A端口汽车应用DCP充电器


点击查看特定型号的库存状况。

说明

MAX20047为汽车级、低成本、小尺寸、双端口充电器IC,适用于车载充电应用。器件组合完全同步6A降压型buck转换器与内置高边和低边FET,能够采用3.5V至36V输入电压工作,提供5.2V输出电压。IC具有集成iPod®/iPhone® 1.0A和iPad® 2.1A专用充电模式。

通过带有可编程限流值和热折返保护控制的集成开关,器件可提供高达3A每端口充电电流,效率高达93%。buck转换器开关频率可在0.4MHz至2.2MHz范围内编程。HVBUS输出端的对地短路保护和过流保护可有效保护内部BUS电源,使其不受过流故障的影响。MAX20047提供高达+18V的电池短路保护,也可订购扩频操作,有效降低EMI。

iPod、iPhone和iPad是Apple Inc的注册商标。
MAX20047: Functional Diagram MAX20047: Functional Diagram 放大+

关键特性

  • Operating VIN Range of 3.5V to 36V
  • 40V Load-Dump Protection
  • Synchronous DC-DC Converter with Integrated FETs
  • 93% Charge Efficiency at 3A Charging
  • 0.4MHz to 2.2MHz Programmable Switching Frequency by External Pin Settings
  • Spread-Spectrum Operation
  • Fixed 8ms Internal Soft-Start
  • 5.20V Output
  • 99% Duty-Cycle Operation with Low Dropout
  • ±2% Output-Voltage Accuracy
  • Input System Overvoltage and Short-Circuit Protection
  • Accurate SRC_DMOS Current Limiting with Minimal Voltage Drop
    • Low RON 15mΩ Dual USB Power Switches
    • Adjustable SRC_DMOS Current Limit by External Pin Settings
    • Integrated Current Sensing
  • Thermal Regulation and Thermal Shutdown
  • Dual Autonomous Battery-Charging Ports with Portable Device Detection
    • Integrated Apple® 2.4A, 2.1A, 1.0A Detection
    • Integrated Samsung® Detection
    • Integrated DCP Detection
  • Robust for the Automotive Environment
    • Short-to-Battery and Short-to-Ground Protection on Protected SRC_DMOS Output
    • Short-to-Battery and Short-to-PV Protection on Protected HVDP1, HVDM1, HVDP2, and HVDM2 Inputs
    • Tested to ISO 10605 and IEC 61000-4-2 ESD Standards
    • 20-Pin (5.0mm x 3.5mm) FC2-QFN Package
    • -40°C to +125°C Operating Temperature Range
    • AEC-Q100 Qualified

应用

  • 汽车点烟器适配器
  • 线性充电器电源
  • USB专用充电端口(DCP)

请查看具体的参数规格 USB Host Adapter Emulator (23)


Part NumberSupported Charging ConfigurationsSupported USB Battery Charging SpecificationCharging ModesCDP EmulationRemote Wake-Up SupportVBUS Reset Time
(sec)
Package/Pins
typ
MAX20047 
Apple 0.5A
Apple 1.0A
Apple 2.1A
China YD/T 1591-2009
Samsung Galaxy Tablet 2A
USB Dedicated Charger
1.2
Auto Detection with Apple 1A
Auto Detection with Apple 2A
Forced Dedicated Charger
Samsung Galaxy Tablet 2A
NoYes0.016
FC2QFN/20

Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。

MAX20047EVKIT: MAX20047 评估板
申请可靠性报告: MAX20047 
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C   Material Composition  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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类型 编号 标题
评估板9815MAX20047EVKIT MAX20047 评估板