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Over the previous few years, we have now seen the adoption development and pace of USB Sort-C ports. That is very true because the launch of the USB PD (Energy Supply) 3.1 protocol, which raised the fast-charging energy restrict from 100 watts to 240 watts (supporting Prolonged Energy Vary, or EPR). This transformation has enabled USB Sort-C to offer adequate charging energy for extra units, together with massive digital units that require higher-power charging, IoT units, communication and safety units, automotive and medical units, and extra.
Within the USB PD 3.1 protocol, the EPR mode comprises three fastened voltage ranges of 28 volts, 36 volts, and 48 volts, in addition to three Adjustable Voltage Provide (AVS). The voltages of 28 volts, 36 volts, and 48 volts within the USB PD 3.1 protocol correspond to functions utilizing 6-, 8-, and 10-cell batteries, respectively. This enables USB PD’s to be well-suited for units comparable to computer systems, servers, motor drives, and communication energy provides.
It’s value noting that the USB PD 3.1 protocol brings a typical software extension: offering energy provide for 24-volt DC motor drives. The primary perform of DC motors is to transform electrical vitality into the mechanical vitality wanted for mechanical motion, which is normally utilized in energy instruments, toy vehicles, electrical followers, and different units. Information reveals that in 2022 the worldwide energy software shipments and market measurement have been 510 million items and $57.19 billion, respectively, and it’s anticipated that the previous will exceed 700 million items and the latter $80 billion by 2026. Influenced by the event development of cordless energy instruments, increasingly more energy instruments are powered by multi-series lithium battery packs, and the discharge of USB PD 3.1 protocol will successfully promote the event of cordless energy instruments and speed up the improve iteration of energy instruments to USB PD quick charging.
Improve your energy software design utilizing a standalone PD 3.1 sink controller
A easy approach to improve the interface design of energy instruments is to make use of the most recent 240-watt PD 3.1 sink controller HUSB238A from Hynetek Semiconductor Co., Ltd. (www.hynetek.com). The HUSB238A is a extremely built-in stand-alone USB Sort-C and PD sink controller. The HUSB238A integrates the CC logic, USB PD protocol, and the legacy protocols. The HUSB238A helps PPS regulation with a 20-millivolt step and AVS regulation with a 100-millivolt step. The HUSB238A can run in I2C mode and GPIO mode. In I2C mode, an I2C grasp can entry the HUSB238A to configure settings, learn again standing, and carry out superior features comparable to DR Swap and VDM messages. The HUSB238A helps APDO, most 48 volts 5 amps EPR PDO and EPR AVS in I2C mode. Whereas in GPIO mode, the configuration is achieved through the setting pins. The HUSB238A will be configured to assist most 28-volt, 3.25-amp, PDO through VSET and ISET pins, solely two resistors are used to set the voltage and present. The ultra-low operation present of the HUSB238A helps the system to cut back the entire energy dissipation and is appropriate for a battery software. The HUSB238A is obtainable in QFN 3 mm x 3 mm-16L bundle.
The system diagram of the HUSB238A is proven under in Determine 3. The HUSB238A communicates with the USB PD supply through the use of a USB-C connector to realize USB-C and PD handshakes. It might management the load swap and supply over- and undervoltage safety. By controlling the HUSB238A in I2C mode via the host, it’s potential to regulate the 28-volt AVS voltage to 24, which will be provided on to a 24-volt DC motor.
With its small bundle measurement and extremely built-in design, the HUSB238A permits engineers to rapidly full interface upgrades for energy instruments with out extra firmware improvement work via the HUSB238A PD 3.1 reference design board.
Join the HUSB238A PD 3.1 reference design board to the facility software and energy it with a 140-watt energy provide. Begin the facility software and you’ll see that the facility software is working correctly. In apply, to realize an influence output of 240 watts (48 volts, 5 amps), a further voltage regulation circuit (in I²C mode) will be added to the VBUS PIN of the reference design board to understand the required energy output.
Simplify your USB-C PD design utilizing a standalone PD DRP controller
A straightforward approach to undertake USB-C for a brand new USB Sort-C DRP design (to assist each energy supply and energy sink) is to make use of HUSB239, which can also be from Hynetek. The HUSB239 is a absolutely autonomous USB PD DRP controller, supporting PR_SWAP, DR_SWAP, Uncover ID, and Uncover SVID for knowledge communication in Sort-C functions. The HUSB239 doesn’t require software program programming or any burn-in and can be utilized just by making use of it to the circuit board.
In case you are designing your USB PD 3.1 product and in search of the perfect PD chip, please go to Hynetek.com or contact gross sales@hynetek.com.
