Introduction
Continuing in my fascination with Quick Charge 2.0 based chargers, this is the second teardown of the fast charge series.
Tools
- 
                  
                  - 
            PureGear's Extreme USB Car Charger is an elegant cigarette lighter car charger with a smooth, matte outer casing. 
- 
            This charger is able to charge devices with Qualcomm Quick Charge 2.0 compatible processors up to 4 times faster. 
- 
            The adapter is rated at 12W with 5V/2.4A for Quick Charge compatible devices and 5V/1A for all others. 
- 
            The charger includes: 
- 
            USB adapter 
- 
            LED to indicated status of charge 
 
- 
            
- 
                  
                  - 
            Just like most car chargers, the case does not have an obvious entry point. 
- 
            In order to get into the inner working, we will need to use our trusty plastic opening tool to pry off the lid to the charger. 
- 
            The lid is easy enough to remove and the green rim slides right out as well. 
 
- 
            
- 
                  
                  - 
            Now we get out first glimpse at the circuitry that allows our Quick Charge 2.0 compatible devices to charge...well quick. 
- 
            From here we can see: 
- 
            USB adapter 
- 
            LED that shows charge status 
- 
            A big capacitor 
- 
            Some USB chip (assuming its proximity to the USB adapter) 
 
- 
            
- 
                  
                  - 
            To separate the last part of the outer shell, we need to apply some pressure from with the vice grip pliers. 
- 
            Squeezing the shell across the seem causes the connecting tabs to separate enough for us to pry them apart. 
- 
            Inside the shell are three metal leads that fell out when the shell pieces separated. 
 
- 
            
- 
                  
                  - 
            Finally we can see what makes this charger tick and It seems that there are two important chips at work here: 
- 
            Active-Semi ACT4533C DC/DC Converter 
- 
            Power Integrations CHY100D-TL Battery Management Charger Interface 
- 
            These two chips in tandem make this CLA possible with so few parts, including: 
- 
            a couple resistors and capacitors 
- 
            an inductor 
- 
            a fuse 
- 
            and two diodes 
 
- 
            
- 
                  
                  - 
            PureGear Extreme USB Car Charger Repairability Score: 7 out of 10 (10 is easiest to repair) 
- 
            It was very easy to remove the lid of the casing 
- 
            There are few parts to disassemble 
- 
            There was not an obvious way to separate the two halves of the outer casing 
- 
            The charger reassembled very easily without any need for repair 
- 
            It's amazing how PureGear was able to make a Quick Charge 2.0 compatible charger with so few parts. 
 
- 
            
3 comments
Any info on the USB chip?
I need help fixing a car charger. I think the fuse is blown. It's an Ainope AV804. I don't see how to take the face off. I'd rather send it to you for repair.
Please email me at: [email protected]
Great insight on how to open one of these. I had a different vendor adapter and it opened almost exactly like the one you showed.
Thanks!
Marc -