Hello, everyone. Welcome back to ChargerLAB.
Today I’d like to show you a 30W PD charger module, which is developed based on PI’s latest
InnoSwitch3-Pro chip and has high integration, high efficiency and high power density.
The size of the charger module is 27.6 × 25.4 × 25.3mm (1.08*1*0.99 inches).
So, the power density is about 1.7W/cm3.
Compared with Apple’s 5W charger, which is much smaller.
We can see that the power module is composed of two PCBs.
And the internal layout is very compact, including transformer, capacitors and inductor.
The outer sides of the two PCBs will be SMD components.
This part and the right part is the AC-DC converter.
The left part is the protocol part.
There’s a 2A fuse at the input end.
A rectifier bridge is next to it.
Here is a small common mode choke inside.
Those two Yongming electrolytic capacitors are used for input filtering.
The I-shaped inductor is between them.
And the big yellow brick is the transformer.
The master control chip of the charger module is PI INN3367C.
Just as we mentioned, it belongs to the InnoSwitch3 Pro family.
It integrates PWM controller, 650V power device and synchronous rectifier controller.
So, the engineer just needs to add some necessary components and protocol chips.
Then, it can complete the design of high-performance and fast-charging products.
This chip also supports the output of USB PD3.0 and PPS fast charging by regulating voltage.
The AOS synchronous rectifier MOSFET is in here.
Another AOS VBUS switch MOSFET is in here.
This is the solid capacitor used for input filtering.
25V, 560μF.
This is an SMD Y-capacitor from TRX between the primary and secondary circuits of this PCB,
used for anti-interference of output.
The protocol control chip is in the right corner. Model is injoinic IP2218.
The chip can support multiple output voltages and fast charging protocols.
Well, That’s the analysis of this 30W PD charger from PI.
Then, let’s try to test its performance.
Use ChargerLAB POWER-Z KT002 to test it.
We can see it supports Apple2.4A, Samsung 5V2A, DCP protocols.
And QC, AFC, FCP, SCP, PD, PPS and other fast charging protocols.
It also shows it supports four fixed PDOs of 5V3A, 9V3A, 15V2A, 20V1.5A
And three PPS PDOs of 3.3-5.9V 3A, 3.3-11V 2.25A, 3.3-20V 1.5A.
The power is about 22.4W when charging iPhone 12 Pro.
The power is about 17.8W when charging Samsung S20 Ultra.
The power is about 17.7W when charging Mi 10 Pro.
The power is about 17W when charging OnePlus 9 Pro.
Well, that’s all for today’s video.
From our analysis, this charger can achieve small size and high power at the same time
with the help of highly integrated chips and high-efficiency design.
But instead of using the latest GaN technology,
it adopts the traditional SiC, which is pretty amazing.
So, the cost will be lower than GaN charger, which will be another option for customers.
If you wanna see some other analysis of charger module, you can click the corners to take a look.
If you wanna see more videos in the future. Please drop a like,
leave any comments, and subscribe to us.
I’ll catch you guys in the next video. Bye.