Wed Sep 25 09:12:04 UTC 2024: ## Alpha and Omega Semiconductor Releases New Ideal Diode Protection Switches for Safer USB Type-C Power Delivery

**SUNNYVALE, Calif., Sept. 25, 2024** – Alpha and Omega Semiconductor Limited (AOS) today announced the release of its AOZ1390DI-01 and AOZ1390DI-02 ideal diode protection switches. These devices are designed to enhance the efficiency and safety of USB Type-C Power Delivery (PD) 3.0 applications, particularly in multi-port systems like laptops, desktops, monitors, and docking stations.

The AOZ1390DI features a unique “Limited Power Source” (LPS) function, acting as a watchdog that disables a port if another port in the same system malfunctions. This prevents excessive power flow from faulty ports, ensuring greater system safety.

The new device boasts several advanced features, including:

* **True Reverse Current Blocking (IDTRCB):** Prevents undesired reverse current flow.
* **Low ON Resistance:** Minimizes voltage drop and power loss.
* **High SOA (Safe Operating Area):** Safely handles high currents and a wide range of output capacitances.
* **Input Voltage Range:** Operates between 3.3V and 23V, with both VIN and VOUT terminals rated at 30V.
* **Soft-Start Circuit:** Controls inrush current from high capacitive loads.
* **Protection Features:** Includes Input Under-Voltage Lock Out (UVLO), Input Over-Voltage Protection (OVP), Thermal Shut Down Protection (TSD), Short Circuit Protection (SCP), and Over Voltage Fault detection.

“With our AOZ1390DI ideal diode protection switches, designers can implement simple, efficient, and safe USB Type-C PD3.0 applications up to 100W,” said Starry Tsai, Sr. Director of Product Marketing of Power IC Product Line at AOS. “Our LPS feature simplifies the design of reliable and safe multi-port systems, while our high SOA and low RDS(on) MOSFETs reduce power dissipation and enable efficient thermal design.”

The AOZ1390DI is available in two variants:

* **AOZ1390DI-01:** Automatically restarts after fault conditions are cleared.
* **AOZ1390DI-02:** Latches the power switch off, requiring a reset to restart the device.

Both variants are currently in production with a standard lead time of 12 weeks.

**About Alpha and Omega Semiconductor Limited**

Alpha and Omega Semiconductor Limited (AOS) is a global supplier of a wide range of power semiconductors, including power MOSFETs, SiC, IGBTs, IPMs, TVS, HV Gate Drivers, Power ICs, and Digital Power products. AOS focuses on developing innovative power management solutions for various high-volume applications, including consumer electronics, automotive electronics, and industrial equipment.

**For more information, please visit:** http://www.aosmd.com.

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