原标题：基于Leadtrend LD6610的45W USB TYPE-C PD适配器整合方案

　　通嘉三合一USB-PD接口完整方案，提供USB TYPE C PD快充功能:5V/3A,9V/3A,15V/3A,20V/2.25A。此方案包含初级控制芯片LD5763，同步整流控制芯片LD8525/8523，USB-PD 控制芯片LD6610。初级控制芯片LD5763采用700V超高压启动和70V高压供电制程，并针对不同输出做OCP/OVP/降频曲线补偿，特别适合宽输出电压的应用，例如45W NB USB-C PD3.0规格为 5V/9V/15V/20V，27W Charger USB-C PD3.0 PPS 规格为3~11V，可以大幅减少PCB周边零件数目，并降低待机功耗，且符合COC-tier II效率规范与待机要求，<75mW@230Vac，<30mW@115Vac，以及极轻载0.25W 效率 >60%的特殊要求。

　　LD6610 Quick Charge 4.0控制器已获得GRL认证，27W参考设计支持Quick Charge 4.0 Class A (18W至 27W)规范，亦向下兼容Quick Charge 2.0及Quick Charge 3.0，进而完成支持 Quick Charge 4.0+。

　　场景应用图

　　展示板照片

　　方案方块图

　　核心技术优势

　　LD8523/8525芯片

　　1. 同步整流控制芯片LD8525, 采用150V高压制程适用于5~20V输出应用

　　2. LD8523采用80V制程搭配超低 3V供电操作电压，适用于3~11V输出应用

　　3. LD8523/8523皆搭配通嘉专利CCM/DCM 混和同步控制电路，适用性高可以取代整流二极管，大幅提高效率。

　　方案规格

　　LD6610控制芯片

　　1. 为一高度整合以减少外部零件并具有整体成本优势的解决方案

　　2. 整合了USB-PD PHY、线补、监控电压、电流及温度

　　3. 各式电源保护，负载开关MOSFET控制电路及微控制器

　　技术文档

　　【LD6610】

　　USB Power Delivery Controller Qualcomm® Quick Charge™ 4/4+ Controller

　　The LD6610 is an USB Power Delivery (USB PD) Type-C controller in the secondary side for highly efficient and slim form factor off-line AC-DC design. An 8-bit MCU is embedded to handle PD protocol, policy engine and device policy manager with built-in Bi-phase Mark Coding (BMC) for USB PD communication or other proprietary protocols (e.g., QC2.0/QC3.0, QFN-16 and SOP-16 only).

　　To minimize external components, it integrates shunt regulator, voltage and current monitor and control circuit of blocking MOSFET. Build-in regulators provides 1.8V for MCU and peripherals to operate at single power supply from 3 to 20V.

　　特点

　　Protocol Support:

　　PD3.0, PD2.0, PPS,

　　QC4.0+,QC4.0, QC3.0, QC2.0

　　USB PD Type-C Compliance

　　QC2.0/QC3.0 HVDCP

　　Highly Integration

　　Embedded MCU (with 16Kbyte OTP and 1KB SRAM)

　　CC and CV Control

　　Quick Discharge Output Capacitor

　　Built-in Shut Regulator

　　Programmable Cable Compensation

　　Wide Operating Voltage Range: 3V~20V

　　Embedded Peak Load Function

　　External Blocking P-MOSFETs Control

　　Support Power Saving Mode in Standby

　　Protection

　　Programmable Over Voltage Protection (OVP)

　　Programmable Under Voltage Protection (UVP)

　　Programmable Over Voltage Current Protection (OCP)

　　Over Temperature Protection (OTP)

　　应用

　　USB Type-C chargers and adapters

　　【LD8525】

　　Synchronous Rectification Driver with Green Mode Function

　　LD8525/P is a secondary side synchronous rectification (SR) driver IC. It is suited for flyback low side and high side synchronous rectification in CCM, DCM and QR mode. For forward freewheeling rectification application, LD8525/P can be applied in CCM and DCM operation.

　　In light load condition, LD8525/P will enter green mode to reduce operation current by stopping SR MOSFET driving function.

　　Cable loss compensation improvement function is an innovative design in LD8525/P. With this unique function, switch power supply can achieve minimum load regulation easily.

　　特点

　　Suited for low side and high side flyback synchronous rectification in CCM, DCM and QR(valley lock) mode

　　Suited for forward freewheeling rectification in CCM and DCM

　　LD8525P is suitable for primary side with peak load function

　　VCC range from 8V to 24V

　　Programmable turn-off level

　　Fast turn-off total delay of 30ns

　　220μA Ultra low green mode operation current

　　Cable loss compensation Improve function

　　Gate source/sink capability: 0.5A/-3A

　　应用

　　Switching AC/DC adaptor and battery charger

　　Open frame switching power supply