ICS 33.050 M 30 团体标 准 T/TAF 083-2021 移动终端融合快速充电技术规范 Universal fast charging specification for mobile d evices 2021-05-28发布 2021-05 -28实施 电信终端产业协会 发布 全国团体标准信息平台 T/TAF 083-2021 I 目 次 前言 ................................ ................................ ................. III 引言 ................................ ................................ .................. IV 1 范围 ................................ ................................ ................. 1 2 规范性引用文件 ................................ ................................ .......1 3 术语、定义和缩略语 ................................ ................................ ...1 3.1 术语和定义 ................................ ................................ .......1 3.2 缩略语 ................................ ................................ ........... 3 4 通用要求 ................................ ................................ ............. 4 5 电气特性及时序要求 ................................ ................................ ...4 5.1 概述 ................................ ................................ ............. 4 5.2 电气特性 ................................ ................................ ......... 5 5.3 阻抗规则要求 ................................ ................................ .....6 5.4 通信基本时序要求 ................................ ................................ .6 5.5 其它要求 ................................ ................................ ......... 7 6 物理层 ................................ ................................ ............... 7 6.1 概述 ................................ ................................ ............. 7 6.2 物理通道实现 ................................ ................................ .....7 6.3 快充协议握手检测 ................................ ................................ .8 6.4 物理层通讯机制 ................................ ................................ ..11 6.5 循环冗余校验（ CRC） ................................ ............................. 12 6.6 数据包格式 ................................ ................................ ......13 6.7 总线冲突 ................................ ................................ ........ 13 6.8 硬件复位 ................................ ................................ ........ 16 7 协议层 ................................ ................................ .............. 17 7.1 概述 ................................ ................................ ............ 17 7.2 消息 ................................ ................................ ............ 18 7.3 定时器 ................................ ................................ .......... 30 7.4 计数器 ................................ ................................ .......... 32 7.5 状态机 ................................ ................................ .......... 33 7.6 协议升级及兼容性要求 ................................ ............................ 35 8 应用层 ................................ ................................ .............. 36 8.1 概述 ................................ ................................ ............ 36 8.2 策略控制 ................................ ................................ ........ 36 8.3 鉴权 ................................ ................................ ............ 42 8.4 供电设备信息上报 ................................ ................................ 42 8.5 供电设备保护 ................................ ................................ ....43 8.6 线缆识别 ................................ ................................ ........ 45 9 功率规则 ................................ ................................ ............ 46 9.1 概述 ................................ ................................ ............ 46 全国团体标准信息平台 T/TAF 083-2021 II 9.2 输出功率范围规则 ................................ ................................ 46 9.3 输出功率动态调节规则 ................................ ............................ 47 9.4 输出功率稳态精度规则 ................................ ............................ 51 9.5 充电设备请求最大功率规则 ................................ ...........