Diodes Incorporated has expanded its USB Type-C Power Delivery (PD) controller lineup with two new 28V dual-role power (DRP) controllers: the AP53781 and AP53782. Targeted at battery-powered portable devices, these controllers manage both power requests and outputs, enabling seamless and safe charging and power delivery over USB-C. The new devices are designed to simplify system design for engineers while delivering robust performance in a compact, cost-efficient package.
What these controllers do
The AP53781 and AP53782 are 28V USB Type-C PD DRP controllers that handle the negotiation of power profiles between a source (like a power bank or wall adapter) and a sink (the device consuming power). As dual-role controllers, they can act as either a power provider or a power consumer depending on the current power negotiation with the connected USB-C port. This flexibility is critical for modern battery-powered portable devices that must adapt to varying charging requirements and usage scenarios.
Key features and technical advantages
These devices integrate essential PD control logic, including fast role swap, PD negotiation, and current control, to ensure stable and predictable power delivery. By supporting up to 28V, they address higher-voltage applications that are common in portable devices with larger batteries or higher power demands. The AP53781 and AP53782 also offer protections such as overcurrent, overvoltage, and short-circuit safeguards to minimize risk during connection and disconnection events.
Why DRP controllers matter for battery-powered devices
In battery-powered portable devices, efficient power management is critical to maximize runtime and protect system components. DRP controllers like the AP53781 and AP53782 simplify charger and device integration by automatically determining whether to source or sink power, reducing the need for additional logic and components. This leads to smaller bill of materials, faster development cycles, and better overall reliability for consumer electronics such as power banks, handheld devices, health wearables, and other USB-C powered gadgets.
Design considerations and integration
For engineers, integrating the AP53781 or AP53782 involves configuring PD negotiation parameters, current limits, and role-switch timing to align with the target system’s power architecture. The devices are designed to work with standard USB-C PD specifications, ensuring broad compatibility with existing USB PD sources and sinks. Their compact footprint helps to fit within slim enclosures and portable form factors that characterize modern consumer electronics.
Applications in the real world
Potential use cases include high-capacity battery packs, laptops or tablet accessories, portable medical devices, and any gadget that relies on USB-C PD for charging and power management. By enabling reliable high-voltage USB-C PD at up to 28V, the AP53781 and AP53782 meet the needs of devices that demand more robust charging or power delivery capabilities without sacrificing safety or efficiency.
What customers can expect
Diodes Incorporated emphasizes reliability and performance with these PD DRP controllers. Customers can anticipate a straightforward integration path, strong protection features, and a flexible platform compatible with a broad ecosystem of USB-C PD sources and devices. The AP53781 and AP53782 are positioned to support the next wave of portable devices that require more powerful and efficient USB-C PD management at higher voltages.
Conclusion
The AP53781 and AP53782 stand out as practical, high-voltage DRP controllers for USB Type-C PD applications in battery-powered portable devices. By combining PD negotiation, dual-role capability, and robust protection in a compact solution, Diodes Incorporated offers engineers a reliable path to deliver safe, efficient, and flexible USB-C power delivery solutions that meet the evolving needs of modern consumer electronics.
