FUSB3307D6A0BFMX

Controllers Overview

The FUSB3307D6A0BFMX is a USB Power Delivery 3.0 adaptive source charging controller manufactured by onsemi, housed in a 14-lead SOIC package with an operating temperature range of -40°C to 85°C. It supports up to 60W power delivery and implements PD 2.0 protocols using D+/D- lines for configuration. The device features constant voltage and constant current regulation, supporting output voltages from 3.3V to 21V. Key electrical parameters include a VCC operating range of 3.3V to 21V, a maximum load switch output current of 5A, and internal over-voltage protection thresholds up to 24.8V. It integrates CC1/CC2 pin protection up to 26V and includes built-in discharge resistance.

Controllers Feature Summary

• Implements USB Power Delivery 3.0 and Type-C 2.0 specifications with integrated Device Policy Manager and Protocol layers.
• Provides Constant Voltage (CV) and Constant Current Limit (CL) regulation with selectable resistor divider or BC1.2 modes.
• Includes comprehensive fault detection mechanisms such as Adaptive UVP, OVP, OCP, and internal/external over-temperature protection.
• Features a gate driver for controlling N-channel MOSFETs as a load switch and built-in output capacitor discharging resistance.

Controllers Applications

• Wall chargers for tablet PCs and laptop batteries
• AC-DC adapters compliant with USB PD 3.0 standards
• DC-DC car chargers requiring individual port power control

Controllers Procurement Notes

Verify the specific ordering suffix D6A0BFMX corresponds to the 60W PD 2.0 variant with D+/D- interface and SOIC-14 packaging. Confirm that the component meets the required -40°C to 85°C ambient temperature range for your application environment. Ensure compatibility with the intended primary-side PWM controller or secondary-side opto-coupler feedback loop during integration.

Controllers Selection Notes

Select this model when a hardware-based PD 2.0 solution is required without external processing. The D+/D- interface is suitable for power-only applications lacking high-speed data requirements. Consider the QFNW20 package if higher thermal performance or smaller footprint is needed, noting that it may support different protocol versions like PD 3.0 depending on the specific suffix.

Controllers Part Context

This component belongs to the FUSB3307 series of highly integrated USB-PD source controllers. It is designed to simplify power supply design by embedding the entire PD state machine and policy engine. The series offers various configurations including different power levels (45W, 60W, 90W) and interface options (D+/D- vs. PDIV pins) to accommodate diverse adapter architectures.

Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult onsemi field application engineers for alternative components within the same family or comparable third-party solutions that match the specific pinout and protocol requirements.