BD93W21F-E2

Controllers Overview

The BD93W21F-E2 is a USB Type-C Power Delivery (PD) controller designed for AC adapter applications. It supports USB Type-C Specification and USB PD Specification, including BMC-PHY communication. The device features an integrated USBPD policy engine capable of independent operation without an external EC. Key electrical specifications include a VCC voltage range of 4.75 V to 20 V and a power source voltage range of 4.75 V to 20 V. Typical sleep power consumption is 1.8 mW. The operating temperature range spans from -30 °C to +105 °C. The component is housed in an SOP16 package with dimensions of 10.00 mm x 6.20 mm x 1.71 mm.

Controllers Feature Summary

• Supports USB Type-C Specification and USB PD Specification with built-in baseband physical layer.
• Includes an integrated USBPD policy engine allowing for autonomous operation without external firmware control.
• Features variable over-voltage protection (OVP), over-current protection (OCP), and short-circuit protection (SCP) functions.
• Integrates N-ch MOSFET gate drivers for power path control and built-in discharge switches for VCC and VBUS.

Controllers Applications

• Consumer application AC adaptors
• USB Type-C receptacle applications

Controllers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm availability and compliance status. Ensure that the SOP16 package dimensions align with the target PCB footprint requirements. Confirm that the thermal resistance characteristics meet the system's heat dissipation needs under maximum load conditions.

Controllers Selection Notes

Select this controller for AC adapter designs requiring USB PD compliance without external microcontroller intervention. Ensure the design accommodates the 4.75 V to 20 V input voltage range. Verify that the external components support the required PDO settings and protection thresholds defined in the parameter information section of the datasheet.

Controllers Part Context

The BD93W21F belongs to ROHM's family of USB Type-C Power Delivery controllers. It is specifically engineered for source applications, distinguishing it from sink or dual-role controllers. The device integrates the protocol engine and physical layer, simplifying the design of compliant AC adapters by reducing the need for separate interface ICs.

Controllers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult the manufacturer's official replacement guide or contact technical support for validated cross-references.

Controllers FAQ

Does the BD93W21F require an external embedded controller?

No, the BD93W21F includes a built-in USBPD policy engine and can operate independently in auto mode without an external embedded controller.

What is the maximum VBUS voltage when shorted to CC1 or CC2?

The maximum VBUS voltage rating when shorted to CC1 or CC2 is 22 V.

How is the output voltage compensation handled?

The device features an integrated error amplifier for the ACDC bridge that automatically adjusts the target value in conjunction with PDOs, maintaining fixed gain regardless of output voltage.