D1524 USB dedicated charging port controller

Overview

The Silicore D1524 is a dual-port USB dedicated charging port (DCP) controller designed for intelligent USB charging applications. It supports multiple fast-charging protocols and emulates standard charging signatures to ensure wide compatibility. The TPS2513ADBVR, from Texas Instruments, is a similar dual-port DCP controller intended for systems requiring USB BC1.2 compliance. While both devices aim to streamline USB charging implementations, the D1524 offers superior protocol support, integration, and cost-effectiveness, making it better suited for next-generation consumer and industrial applications.

Charging Protocol Compatibility

A significant advantage of the Silicore D1524 is its comprehensive support for multiple fast-charging protocols, including:

• USB BC1.2 DCP mode

• Apple 1A, 2.1A, 2.4A

• Samsung 1.2V/1.35V signaling

• DCP shorted mode

In contrast, the TPS2513A primarily supports BC1.2 DCP, Apple 1A/2.1A, and Samsung 1.2V modes. The D1524’s wider protocol recognition ensures compatibility with a broader range of smartphones, tablets, and other smart devices, enhancing user charging experience and reducing charge negotiation failures in real-world applications.

Integrated Features and System Design Simplification

The D1524 is designed with a higher level of integration, which helps reduce external component count. It integrates internal detection logic, pull-down resistors, and logic sequencing—allowing for simpler PCB layout and reduced BOM cost. TPS2513A also offers integration but often requires tighter layout guidelines and may need more external filtering, particularly in systems sensitive to EMI.

Power Consumption and Efficiency

The D1524 exhibits lower standby power consumption than the TPS2513ADBVR, helping system designers meet increasingly strict energy efficiency regulations in standby and idle modes. This advantage is particularly valuable in power adapters, docking stations, or charging hubs that remain powered for extended periods.

Port Control and Design Flexibility

Both D1524 and TPS2513A offer dual-port control, but the D1524 provides better logic-level compatibility and easier port enable/disable control, making it more flexible for microcontroller-based systems. The D1524's logic inputs are 1.8V/3.3V compatible, making it suitable for a wide variety of modern low-voltage MCUs without the need for level shifters.

Thermal and Electrical Performance

The D1524 is designed with enhanced thermal efficiency, allowing stable operation in high-current applications and thermally constrained environments. Its ESD protection level also meets or exceeds IEC61000-4-2 standards, on par with the TPS2513A. However, in dense charging systems or thermally stressed designs, D1524 tends to maintain more stable performance margins due to better thermal layout tolerance.

Packaging and Footprint

Both devices are available in SOT-23-6 packaging, allowing for compact system integration. However, Silicore offers flexible delivery and packaging options with shorter lead times and better support for high-volume production—an advantage for OEMs and ODMs navigating supply chain constraints.

Cost and Supply Chain Advantages

In today’s market environment, cost optimization and supply security are crucial. The D1524 offers a significant cost-performance advantage over TPS2513A, making it a better fit for cost-sensitive mass production. Silicore maintains robust delivery capabilities, ensuring stable supply even under global component shortages, while the TPS2513A has faced extended lead times due to high global demand and tighter allocation at times.

Conclusion

The Silicore D1524 stands out as a powerful and efficient alternative to Texas Instruments' TPS2513ADBVR, offering key advantages such as:

• Wider fast-charging protocol compatibility

• Lower power consumption in standby mode

• Simplified system design with fewer external components

• Superior logic compatibility and thermal stability

• Cost-effective solution with stable lead times for high-volume production

For designers seeking a robust, flexible, and scalable USB charging port controller, the D1524 represents a highly competitive solution for modern USB power delivery systems.