原标题：基于MPS MP2669的双向18W快充(QC3.0/PD)解决方案

　　美国芯源信息(monolithic power Systems)，推出高度集成的单芯片移动电源方案用于开发下一代锂离子电池供电的产品。MP2669锂电池完整方案提供宽广的功率和5伏(V)、9 V,12 V和20V工作的电压/电流输出范围，全集成内置MOS，最大充放电能力达18瓦(W)。MP2669自动识别输入输出快充充电协议。资深用户甚至可以重新程序设计MP2669以支持定制的充/放电快充协议(外置)，以及USB Type-C和PD“策略引擎”功能。该单芯片方案包括集成的电量曲线、可配置的I/O、LED驱动器、I2C接口，提供系统灵活性。monolithic power system且提供设计参考套件以实现快速上市。此外，支持BC1.2，Apple，HV Fast Charger自动识别。

　　场景应用图

　　场景应用图

　　产品实体图

　　展示板照片

　　方案方块图

　　核心技术优势

　　 自动USB侦测,兼容BC1.2和HV Fast Charge

　　 支持输入电压环和电流流环进行功率管理，确保兼容不同的充电器给本方案充电不会拉死;

　　 最大支持5A可编程充电电流;

　　 支持可编程宽电池电压(3.1V-4.675V)精度可达0.5%

　　 符合日本 JEITA(日本电子技术产业协会)的标准，支持温度 / 过电压 / 过电流侦测

　　方案规格

　　 4.0-14V宽电压输入，最大耐压达24V，最大充电电流达5A;

　　 5.0-20V宽电压输出。满足QC3.0输出规范

　　 3.1-4.675V宽电池电压可编程设置，电压精度达0.5%;

　　 4 LED电池电量指示;

　　 内置温度调节和过热保护;

　　 符合日本JEITA(日本电子技术产业协会)标准;

　　 USB输出口带线补功能;

　　 内置8位 SAR ADC 电量计;

　　 4mmx 4mm QFN-28 package;

　　技术文档

　　【MP2669】

　　5A, Battery Charger with 3A Boost System Current and Fast-Charge Capability

　　Product Description

　　The MP2669 is a highly integrated, switch-mode, battery charge and system power-path management device designed for a single-cell Li-ion or Li-polymer battery for use in a wide range of portable applications.

　　The IC has different operating modes (charge mode, boost mode, and sleep mode) to allow for management of the system and battery power based on the state of the input and output.

　　When an input power is present, the device operates in charge mode. The MP2669 detects the adaptor’s type and sets the input current limit. Fast charge (up to 12V) is supported. The device detects the battery voltage automatically and charges the battery in four phases: trickle current charge, pre-charge, constant current, and constant voltage charge.

　　The IC has an integrated IN-to-SYS pass-through path to pass the input voltage to the system, even when charging is disabled. The path-through path has high priority over the charging path. The MP2669 manages the input power and meets the priority of the system power demand with the integrated input current and input voltage regulation function.

　　In the absence of the input source, the MP2669 enters sleep mode to minimize the power dissipation of the battery. If the system load is at SYS, the MP2669 switches to boost mode to power SYS from the battery. When working with the interface IC, the MP2669 can support QC3.0 with output short protection.

　　With the I2C interface, the IC can flexibly program the charging and boosting parameters, providing the operation status.

　　To guarantee safe operation, the IC limits the die temperature to a preset value 120°C (default). The IC also provides other safety features, including input over-voltage protection (OVP), battery OVP, thermal shutdown, and battery temperature monitoring.

　　Product Features

　　4.0V to 14V Operation Voltage Range

　　Up to 24V Sustainable Input Voltage

　　Compliant with BC1.2 and HV Fast Charge

　　Integrated Input Current-Based and Input Voltage-Based Power Management Functions

　　Up to 5A Programmable Charge Current

　　Reverse Boost Operation Mode with up to 3A Output Current and Adjustable 5V to 20V Output Voltage to Support QC3.0 with an Interface IC that Implements Qualcomm's Quick Charge 3.0 Specification

　　Analog Voltage Output IB Pin for Battery Current Monitor

　　Programmable 3.1 - 4.675V Charge Voltage with 0.5% Accuracy

　　Four LED Battery Gauge Indicators

　　JEITA-Compatible Negative Temperature Coefficient Protection in both Charge and Discharge Mode

　　Thermal Regulation and Thermal Shutdown

　　USB Output Cable Impedance Compensation

　　Integrated Short-Circuit Protection (SCP) for Boost Mode

　　Integrated Short-Circuit Protection (SCP) and Over-Voltage Protection (OVP) for Pass-through Path

　　Integrated 8-Bit SAR ADC for Battery Voltage Measurement

　　Available in a QFN-28 (4mmx4mm) Package