QC3.0+USB PD二合一Type-C车用充电器解决方案

Release time:2017-05-26
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source:ameya360
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方案概述:

Type-C是新一代的USB接口,正反都可以插,大小约为8.3mm×2.5mm,和其他介面一样支持USB标准的充电、数据传输、显 示输出等功能。Type-C由USB Implementers Forum制定,在2014年获得苹果、谷歌、英特尔、微软等厂商支持后开始普及。,USB PD输出电压可提供5V、9V、12V、15V、20V等多种选择,功率最大可以达到100W电力,而且Type-C接口很细小,所以适合笔电、平板到手机,以至小小的周边产品都可以配备。而QC3.0乃是为手机量身打造,输出电压以每 200mV 为增量,于3.6V 至 20V 的电压范围内,让手机选择最适合的电压与理想的充电电流,进而将电能损耗最小化、提升充电效率并改善热表现。单一Type-C接口输出的QC3.0+USB PD二合一车用充电器,让使用者可以方便的对手机、平板与笔电充电。

方案特性:

本方案最高功率可达60W,采用MCU与开放式软件设计,能自动识别负载充电协议为QC3.0或USB PD,并共享一个Type-C接口,具有成本低,弹性大的优点。本方案输入由汽车电池点烟座提供大功率电源,经由升降压电源转换控制芯片驱动功率开关,以调节输出电压与电流。MCU 负责识别、判断负载充电需求与控制升降压电源转换芯片,以输出负载所需的电源规格,MCU可直接连接Buck Boost IC内建的I²C bus来设定负载所需的输出电压值,电压设定采每100mV为增量,超越QC3.0所需的200mV增量规格。本方案负载充电协议支持QC3.0与USB PD,并共享一个Type-C接口。Type-C与USB PD协议是经由侦测USB接口的CC1与CC2讯号,并透过Type-C控制IC,经由I²C接口与MCU连接QC3.0快充协议则采QC3.0 控制IC连接USB接口的D+/D-讯号。MCU负责识别、判断负载充电需求与控制升降压电源转换芯片,以输出负载所需的电源规格。

  QC3.0+USB PD二合一Type-C车用充电器解决方案

种类 厂商 料号
MCU  意法半导体 STM32F030K6T6
STM32F030F4P6
STM32F070CBT6
WIZnet W7500
QC3.0 PI CHY103D
ons  NCP4371AACDR2G
type-c 仙童 FUSB302TMX

FUSB300CUCX





BM92T10MWV
BM92T20MWV
BM92T30MWV
BM92T50MWV
MOSFET 仙童  FDMC6679AZ
LDO  MPS   MP2013AGQ-P
CONVERTER  ons  NCP81201MNTXG
SWITCHING MOS ons  NVMFS5834NLT3G
NVMFS5834NLWFT3G
NVMFS5834NLWFT1G
NVMFS5834NLT1G




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