Small 100W bidirectional fast charging mobile power solution

 
The bidirectional PD 100W mobile power solution based on the Yingjixin IP5389-BZ chip design
integrates QC2.0/QC3.0/SCP/VOOC output fast charging protocol, FCP/AFC/SFCP input and output fast charging protocol, MTK PE+1.1&2.0 output fast charging protocol, USB C/PD2.0/PD3.0 input and output protocol, USB C PD3.0 PPS output protocol, compatible with BC1.2/Apple/Samsung mobile phones.
 
All small patch components are arranged on the same side for easy welding using a heating plate. The
heating components are arranged on the same side, which is convenient for close contact with the shell to dissipate heat.
 
Compared with wzw666's work, the volume is reduced and an A port is added!
 
Supports 2-5 battery packs
and also supports lithium iron phosphate batteries (need to replace resistors to set the battery type).
 
The input and output power can reach up to 100W.
100W applications must be more than four batteries.
Note! ! !
When the board has high power input and output, the current at the battery end is very large, so please pay attention to the selection of batteries.
The board does not have lithium battery protection and balancing circuits. The battery end needs to use a protection board with balancing function.
The window area must be tinned.
The window area on the front side of port A must be tinned and welded to port A (conductive).
 
IP5389 is a multifunctional power management SOC that integrates QC2.0 / QC3.0 / QC3+ output fast charging protocol, AFC/FCP/ SCP/ VOOC input and output fast charging protocol, USB C PD2.0/PD3.0 input and output protocol, USB C PD3.0 PPS output protocol, compatible with BC1.2/Apple mobile phone, synchronous bidirectional buck-boost converter, lithium battery charging management, battery power indicator, etc., providing a complete power solution for fast charging mobile power. It can support four USB ports: USB A x2, USB C, USB B (or lightning port, or USBC) at the same time. Any USB port can support fast charging when used alone. When two or more output ports are used at the same time, only 5V is supported.
The high integration and rich functions of IP5389 only require one inductor to realize the bidirectional buck-boost function. Only a few peripheral devices are needed in the application, which effectively reduces the size of the overall solution and reduces the BOM cost.
IP5389 supports 2/3/4/5 series cells, and the synchronous switch buck-boost system can provide a maximum output capacity of 60W. When unloaded, it automatically enters the sleep state.
The synchronous switch charging system of IP5389 provides up to 5.0A charging current. Built-in IC temperature, battery temperature and input voltage control loop, intelligently adjust the charging current.
IP5389 has a built-in 14bit ADC to accurately measure battery voltage and current. IP5389 has a built-in power calculation method to accurately obtain battery power information. The battery power curve can be customized to accurately display the battery power.
IP5389 supports 4 LED power display, supports 88, 188 and other digital tube power display; supports lighting function; supports buttons.
IP5389 integrates USB C Power Delivery PD2.0/PD3.0/PPS protocols, integrated physical layer protocol (PHY), hardware bidirectional tag codec (BMC) module.
Supports PD2.0/PD3.0 bidirectional input/output protocol, supports PPS output protocol. Supports maximum power output of 100W, input supports 5V, 9V, 12V, 15V, 20V voltage range, output supports 5V, 9V, 12V, 15V, 20V voltage range output broadcast capability 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/3A, PPS 3.3~21V/3A.
 
The schematic diagram is modified from IP5389 [Small Volume 100W Bidirectional Fast Charging Mobile Power Solution], the engineering description is also excerpted and modified for use here, and has been shared according to the same protocol.