Teardown of HP 4.5mm and USB Dock Adapter (HSA-B006)
Introduction
Whether it's a desktop or a laptop, for most ordinary users, these devices are typically used for 5-6 years or even longer, except for productivity-focused professionals and hardcore gamers who may frequently upgrade their equipment. However, the rapid popularity of USB-C ports in recent years has made it somewhat awkward to use these old devices.
To address this, HP has introduced a 4.5mm and USB Dock Adapter. This product features a USB-A port and an 4.5mm port on one end, and a USB-C port on the other end. This configuration allows it to support both charging via USB-C to old DC ports and data transmission from USB-A to USB-C, revitalizing old devices. Now let's take a look at the internal components of this product.
Product Appearance
![Teardown of HP 4.5mm and USB Dock Adapter (HSA-B006)-Chargerlab](https://www.chargerlab.com/wp-content/uploads/2024/03/2024032901192444.jpeg)
This adapter is compact and flat, with a short USB and 4.5mm DC extension cable. When paired with mainstream GaN chargers, it can easily be taken along and used to charge and transfer data for older laptops.
![Teardown of HP 4.5mm and USB Dock Adapter (HSA-B006)-Chargerlab](https://www.chargerlab.com/wp-content/uploads/2024/03/2024032901192517.jpeg)
Its case is matte to resist fingerprints and has the HP logo on the top.
![Teardown of HP 4.5mm and USB Dock Adapter (HSA-B006)-Chargerlab](https://www.chargerlab.com/wp-content/uploads/2024/03/2024032901192879.jpeg)
And all the specs info are printed on the back. Model is HSA-B006, it can support input of 20V3A, and the output can be up to 20V2.5A. It has passed CE, FCC, CP, VCCI, EAC, RCM, UL, KC certification.
![Teardown of HP 4.5mm and USB Dock Adapter (HSA-B006)-Chargerlab](https://www.chargerlab.com/wp-content/uploads/2024/03/2024032901193031.jpeg)
The USB-C port with 24 pins is located at the bottom, as advertised by the official promotion, it can be used to connect to a docking station to achieve functions such as network sharing and display expansion.
![Teardown of HP 4.5mm and USB Dock Adapter (HSA-B006)-Chargerlab](https://www.chargerlab.com/wp-content/uploads/2024/03/2024032901193239.jpeg)
On the other end, one of the extension cables terminates in a USB-A port, featuring an independent 9-pin design. It is officially stated to support the USB 3.0 transmission.
![Teardown of HP 4.5mm and USB Dock Adapter (HSA-B006)-Chargerlab](https://www.chargerlab.com/wp-content/uploads/2024/03/2024032901193556.jpeg)
The other extension cable terminates in an HP-style old-fashioned 4.5mm port, which is now rarely seen on modern devices and is primarily used as a power supply port.
![Teardown of HP 4.5mm and USB Dock Adapter (HSA-B006)-Chargerlab](https://www.chargerlab.com/wp-content/uploads/2024/03/2024032901193782.jpeg)
The extension cable lengths are approximately 16cm (6.30 inches) and 9cm (3.54 inches) respectively.
![Teardown of HP 4.5mm and USB Dock Adapter (HSA-B006)-Chargerlab](https://www.chargerlab.com/wp-content/uploads/2024/03/2024032901194060.jpeg)
And the weighs is about 24g (0.85 oz).
Teardown
Next, let's take it apart.
![Teardown of HP 4.5mm and USB Dock Adapter (HSA-B006)-Chargerlab](https://www.chargerlab.com/wp-content/uploads/2024/03/2024032901194377.jpeg)
As usual, use a spudger to pry along the gap and take out the PCBA module.
![Teardown of HP 4.5mm and USB Dock Adapter (HSA-B006)-Chargerlab](https://www.chargerlab.com/wp-content/uploads/2024/03/2024032901194640.jpeg)
The current sensing resistor, USB hub chip and USB-C protocol chip are on the front of the PCBA module.
![Teardown of HP 4.5mm and USB Dock Adapter (HSA-B006)-Chargerlab](https://www.chargerlab.com/wp-content/uploads/2024/03/2024032901194822.jpeg)
And the crystal oscillator, memory are on the back.
![Teardown of HP 4.5mm and USB Dock Adapter (HSA-B006)-Chargerlab](https://www.chargerlab.com/wp-content/uploads/2024/03/2024032901195066.jpeg)
On the 4.5mm DC side, there is a shielded net for the negative pole, the red wire for the positive pole, and a thin black wire in the middle used for power identification.
![Teardown of HP 4.5mm and USB Dock Adapter (HSA-B006)-Chargerlab](https://www.chargerlab.com/wp-content/uploads/2024/03/2024032901195371.jpeg)
Some USB3.0 wires are on the USB-A front side.
![Teardown of HP 4.5mm and USB Dock Adapter (HSA-B006)-Chargerlab](https://www.chargerlab.com/wp-content/uploads/2024/03/2024032901195592.jpeg)
And the USB2.0, power wires are on the back.
![Teardown of HP 4.5mm and USB Dock Adapter (HSA-B006)-Chargerlab](https://www.chargerlab.com/wp-content/uploads/2024/03/2024032901195860.jpeg)
The USB-C protocol chip is from the Infineon EZ-PD CCG3 series. It integrates a 48MHz ARM M0 processor, VCONN power supply, and supports the USB-C port. The model is CYPD3125-40LQXI.
![Teardown of HP 4.5mm and USB Dock Adapter (HSA-B006)-Chargerlab](https://www.chargerlab.com/wp-content/uploads/2024/03/2024032901200053.jpeg)
Two VBUS MOSFETs are from Onsemi, and they are connected in series for power supply control. Model is FDMC4435BZ. 30V 20mΩ.
![Teardown of HP 4.5mm and USB Dock Adapter (HSA-B006)-Chargerlab](https://www.chargerlab.com/wp-content/uploads/2024/03/2024032901200211.jpeg)
The R005 sampling resistor for detecting port current adopts 2512 package. 5mΩ.
![Teardown of HP 4.5mm and USB Dock Adapter (HSA-B006)-Chargerlab](https://www.chargerlab.com/wp-content/uploads/2024/03/2024032901200363.jpeg)
The USB hub chip is from Realtek, supporting dual ports, USB 3.2 Gen 1, and backward compatibility with USB 2.0 and USB 1.1. Model is RTS5412.
![Teardown of HP 4.5mm and USB Dock Adapter (HSA-B006)-Chargerlab](https://www.chargerlab.com/wp-content/uploads/2024/03/2024032901200689.jpeg)
And the RTS5412 external power supply inductor is on its top.
![Teardown of HP 4.5mm and USB Dock Adapter (HSA-B006)-Chargerlab](https://www.chargerlab.com/wp-content/uploads/2024/03/2024032901200777.jpeg)
A 12.00MHz crystal oscillator provides the clock for the RTS5412.
![Teardown of HP 4.5mm and USB Dock Adapter (HSA-B006)-Chargerlab](https://www.chargerlab.com/wp-content/uploads/2024/03/2024032901201027.jpeg)
Parade Tech FL7201 multiplexer is used to switch the front and back of the USB-C port.
![Teardown of HP 4.5mm and USB Dock Adapter (HSA-B006)-Chargerlab](https://www.chargerlab.com/wp-content/uploads/2024/03/2024032901201126.jpeg)
The synchronous buck regulator marked with EN is from Silergy, it has built-in MOSFET and is packaged in SOT23-6. Model is SY8201. 27V1A.
![Teardown of HP 4.5mm and USB Dock Adapter (HSA-B006)-Chargerlab](https://www.chargerlab.com/wp-content/uploads/2024/03/2024032901201377.jpeg)
There is a buck inductor on the back of the PCB.
![Teardown of HP 4.5mm and USB Dock Adapter (HSA-B006)-Chargerlab](https://www.chargerlab.com/wp-content/uploads/2024/03/2024032901201667.jpeg)
The 512KB memory is from Winbond and is used to store configuration information. Model is W25X40CLNIG.
![Teardown of HP 4.5mm and USB Dock Adapter (HSA-B006)-Chargerlab](https://www.chargerlab.com/wp-content/uploads/2024/03/2024032901202175.jpeg)
A single operational amplifier marked with A63A is used with a sampling resistor to detect the output current.
![Teardown of HP 4.5mm and USB Dock Adapter (HSA-B006)-Chargerlab](https://www.chargerlab.com/wp-content/uploads/2024/03/2024032901202376.jpeg)
The R020 resistor is used to detect the DC port current.
![Teardown of HP 4.5mm and USB Dock Adapter (HSA-B006)-Chargerlab](https://www.chargerlab.com/wp-content/uploads/2024/03/2024032901202530.jpeg)
Tge USB-C socket is marked with 181229.
![Teardown of HP 4.5mm and USB Dock Adapter (HSA-B006)-Chargerlab](https://www.chargerlab.com/wp-content/uploads/2024/03/2024032901203268.png)
Well, that would be all components of this charger.
Summary of ChargerLAB
This HP 4.5mm and USB Dock Adapter can convert a USB-C port into traditional laptop DC port, and convert USB 3.0 to USB-C output. It can power traditional old-fashioned laptops via a USB-C docking station and supports data transmission, enabling the use of a wide range of USB-C peripherals.
It utilizes components from top-tier manufacturers such as Infineon, Onsemi, and Realtek, ensuring quality and reliability in both design and performance.
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