PD fast magnetization mobile power supply scheme

With Type-C The popularization and promotion of , At present, the mobile power supply on the market is slowly being eliminated micro-USB Interface , It has been gradually updated to Type-C Interface ,micro-USB Interface from 2007 Annual listing , Has accompanied us for more than ten years , since 2015 year Type-C On stage ,micro-USB Also began to fade out of our vision , The mobile phone interface is gradually replaced by Type-C Interface , Accessories on the market are also beginning to support Type-C Interface .

Intelligent devices can be said to have brought great changes to our lives , While the entertainment equipment is abundant , People also have charging anxiety , I always worry about not using enough electricity when I go out , So the mobile power supply is a good way to fill this gap , When traveling on business , Very good increase in endurance .

The old mobile power supply generally has two interfaces , One micro-USB As input , One USB-A Mother seat as output , Now? Type-C Introduction , It can be a Type-C Interface for input and output , It saves space and supports fast charging , In addition, magnetic attraction wireless charging is also added , The small body also has comprehensive functions .

The market of power bank has been in a good trend , Because intelligent devices are emerging in endlessly , And basically unified Type-C Interface , One PD Charging treasure , It can supply power to most equipment . Now let's see , single Type-C How can the interface realize charging and discharging ？ stay PD In the agreement , The equipment can pass through CC Communication identified , When the mobile phone is accessed ,CC Identified as sink Insert , Then discharge the battery to charge the mobile phone ; When the adapter is connected ,CC Identified as source Insert , Then receive power from the adapter .

We learned that one was called LDR6035 Of PD Protocol chip ,  It is designed for the single Type-C The interface is designed for charging and discharging , As a DRP chip , In different scenarios , adopt CC The communication identification will automatically switch between different devices DFP/UFP, This saves the cost of multiple interfaces for mobile power , Product design can also be simpler .

LDR6035 It's lederi technology for USB Type-C Standard Bridge Developed for equipment USB-C DRP Interface USB PD Communication chip . Switching can be realized Data Role function , For smart devices ( The computer , Flat , mobile phone ) PDO And REQUEST negotiation , Automatically DR_SWAP To UFP Pattern .

LDR6035 characteristic ：

1. SSOP-16 encapsulation , The periphery is streamlined

2. Support USB PD 2.0, compatible USB PD 3.0

3. Provided to equipment 5V PDO And REQUEST negotiation

4. Automatically DR_SWAP To UFP Pattern

 

Main application scenarios ：

1.USB TYPE-C Portable source

2.USB Type-C Smart devices

The schematic diagram of the reference scheme is as follows ：