I saw the MPS event on EEWORLD’s official account some time ago.
So I applied right away, placed an order, and waited for delivery... But then they sent me an email saying it was out of stock and I had to wait two weeks. It finally arrived after about a week.
When I picked up the package, I was shocked. It was a huge box. I finally understood why the shipping fee was 39.
I thought there would be a surprise inside, but I didn't expect there were only 3 small boxes. This time I bought a total of 3 types of materials, so each box contained one type.
Open the blue box and there is another layer of packaging inside
Finally I saw its true face, it is a relatively small evaluation board.
The EVQ4488-U-00B is an evaluation board designed to demonstrate the performance of the MPQ4488 product. The MPQ4488 is a monolithic step-down switch-mode converter with 2 USB current-limited switches and charging port identification circuitry. It can achieve 6A output current over a wide input range with excellent load and line regulation.
The output current value of the USB switch is the current limit. The USB port supports both the DCP scheme that complies with the battery charging specification (BC1.2), as well as the Divider mode, 1.2V/1.2V mode, and USB Type-C 5V @ 3A DFP mode without external user intervention.
Connect to a DC power source, and it becomes a charger , but it only has the basic 5V @ 3A mode, and no higher voltage output.
The other two chips purchased are MP2602 and MP2162
The MP2602 is a high performance single cell Li-Ion battery linear charger. It integrates high voltage input protection into the IC and can withstand input surges up to 28V.
The device provides constant current (CC) and constant voltage (CV) charging modes, with adjustable charging current from 85mA to 1A, adjustable full charge threshold, thermal protection, battery temperature monitoring, reverse current blocking and trickle current charging functions. It also provides the system with AC adapter power normal indication and charging status indication.
The MP2602 is available in a 10-pin 3mmx3mm QFN package.
The MP2162 is a monolithic step-down switching converter with built-in power MOSFET. It can achieve 2A continuous output current with excellent load and line regulation in the input voltage range of 2.5V to 6V. Its output voltage can be adjusted as low as 0.6V.
It is available in an ultra-small 2mmx1.5mm QFN8 package.
It can be seen that the chips are indeed very small, which is also helpful to save space on the board. If there is a chance, I will try these chips to see how they work. I am still looking forward to the MPS products.
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