大联大品佳代理的Richtek（立锜科技）推出RT7786+RT7207为一高整合度PWM +USB-PD Controller，它具备许多特征能提升低功率反驰式（Low-power Flyback）变压器的性能，特别针对于USB充电的应用方面，已取得USB-PD 协会认证。该方案能以*简化的回路设计完成。使用RT7786+RT7207将能够同时实现低成本、体积小、重量轻的产品设计。

为降低待机功耗，Richtek（立锜科技）采用专有的Green-Mode 设计模式，以线性降频方式低于Light-Load 状态。使用专有的Green-Mode设计产品将能轻易的符合电源相关法规要求。而RT7207为高整合度IC，同时内建CC/CV、LDO、TL431、OVP、OTP、SR、Cable Comp、Charge Pump、PMOS drive、Quick Discharge、Single Fault、PWM Off @ OVP，且不需在额外增加线路。

RT7786 Features• Designed for adaptive power• Wide Vdd Range ( 7V~38V)• Adaptive Vo OVP , UVP for < 3V• Feedback Loop Fault Protection• Adaptive Loop Gain for Loop Stability• Adoptive Current Limit to meet LPS• High Efficiency:• CCM/QR Hybrid Control• Power Saving < 30mW @ 5V• Other Protection:• Vdd OVP, OCP, OLP, OTP, Adjustable Constant Output Power , Brown in/out protection, Secondary Rectifier Short Protection , Adaptive Vo OVP

RT7207 Features• USB PD 2.0 Type-C Compliant , Other protocol is optional• Highly Integration:• ARM M0 MCU embedded• Transceiver embedded for BMC.• Programmable Type C current mode setting. (default, 1.5A, 3A)• CV and CC Control• Synchronous rectifier driver and controller (Operate in both DCM and CCM for wide output voltage range (RT7207T)• BLD pin for quick discharge• Shut regulator and Programmable cable compensation built in• Charge pump built in for wide VDD operation range ( 3V to 20V ).• USBP pin to directly drive external isolation P-MOSFETs .• Green mode in standby for power saving• Protection:• OTP, Adaptive OVP, Programmable UVP, SCP

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