Change the charging design method with USB PD and C type USB port

In today's rapidly evolving tech landscape, an increasing number of electronic devices are being equipped with USB Type-C™ and USB Power Delivery (PD) ports. These devices span a wide range—from smartphones and laptops to power banks, drones, power tools, and smart home gadgets. The USB PD standard enables high-power charging through intelligent negotiation between the device and the power source, which in turn places new demands on the internal components, particularly the charger IC. From a device perspective, it must be capable of negotiating the highest voltage (ranging from 5V to 20V) and current available from the power source in order to efficiently charge the battery and power the system. On the host side, the device should also be able to supply the maximum voltage and current from its battery to connected peripherals via OTG (On-The-Go), ensuring seamless power delivery. For devices that use single or multi-cell lithium-ion battery systems, a buck-boost battery charger is an excellent solution that aligns well with these requirements. During charging, if the input voltage is higher than the battery voltage, the charger can step down (buck) the voltage to charge the battery. Alternatively, if the input voltage is lower, it can step up (boost) the voltage to meet the battery’s needs. When powering peripherals, the same circuit can adjust the output voltage—either stepping it down or boosting it—depending on the peripheral’s requirements. As more applications adopt USB PD and Type-C ports, buck-boost chargers have become a hot topic in the industry. Take a drone, for example—a high-power-consuming device. Depending on the battery capacity and power level, most drones typically offer flight times ranging from 6 to 30 minutes per charge. Due to this limited runtime, users often carry spare batteries and have multiple charging options, such as using the drone’s own charging port, a car charger, or a home cradle. ![bq25703A application diagram](alt="") The versatility and high power transfer capability of the Type-C USB port make it ideal for such applications. To support a variety of power supplies with different voltages and power levels, a buck-boost charger is essential for multi-cell battery systems like those found in drones. It's also crucial that users can quickly and safely charge their batteries during short flight intervals. The bq25703A and bq25700A are designed to handle up to 6.35A of charge current and include features like Input Current Optimization (ICO) to maximize efficiency across various adapters. Figure 1 in the bq25703A application diagram provides additional insights into its design. Moreover, drones need to function reliably under varying temperature conditions. The bq25703A series offers ±0.6% battery charge accuracy across a wide temperature range—from -40°C to 85°C. This precision ensures optimal charging performance regardless of environmental conditions. In summary, the buck-boost battery charger is a highly suitable solution for applications that rely on USB PD ports. It supports smooth transitions between operating modes, adapts to different power sources, and provides robust safety features, making it a key component in modern high-performance devices.

Solder Cup D-Sub Connectors

Antenk D-Sub,D-Shaped Connectors Solutions offer a broad range of higher reliability D-Sub connectors.

Antenk's D-Sub product line is designed for applications that require a rugged, robust I/O connector system with various styles and mounting options. All are used in a variety of industries including computer, industrial, medical, and military markets.

Antenk High-Density D-Sub Connectors
Available in cable mount options including crimp & solder cup and the board mount options including Dip Solder, Wire Wrap, High Profile, Right Angle, & Surface Mount (SMT). This comprehensive Antenk High-Density Density D-Sub product offering is available in both stamped & formed and machined contact options.
High density D-Sub connectors, for applications where the best possible contact density is required. Due to the [high" density of the 15, 26, 44, 62 and 78 contacts, this series is ideal for the most modern applications. The insulating body, a monoblock, complies with the UL94 V-0 standard. The contacts are machined and available in several quality classes.

Antenk Solder Type D-Sub Connector

Available in standard and high density versions

Supplied with stamped & formed or screw machine contacts.

Standard contact terminations accomodate up to 20 AWG standard wire

Available with white (nylon) or black (PBT) insulators. Standard shell plating is tin

Antenk D-Sub connectors solder cup machined contacts are manufactured according to the standards MIL-C-24308 and DIN 41652. The standard connectors from Antenk are available in all known versions and sizes. They are available in various version with numerous assemblies. The insulating body, a monoblock, complies with the UL94 V-0 standard. The contacts are machined and available in several quality classes.

Features of Antenk's Solder Cup Standard D-Sub Connector Machined contacts

Materials of Antenk Solder Cup Standard D-Sub Connector Machined contacts

Materials of Solder Cup High Density D-Sub Machined Contacts

9 pin, 15 pin, 25 pin, 37 pin, 50 pin Male Solder Cup Standard D-Sub Connectors Machined Contacts, Solder Cup High Density D-Sub Machined Contacts,Female Solder Cup Standard D-Sub Connectors Machined Contacts

ShenZhen Antenk Electronics Co,Ltd , https://www.antenk.com