Ideal diode switch elevates UCB-C safety

Offering Limited Power Source (LPS) functionality, the AOZ1390DI ideal diode protection switch from AOS improves the efficiency and safety of USB Type-C applications. LPS limits the current and voltage supplied to the load, protecting sensitive components from conditions such as overcurrent and overvoltage.

In multiport ORing or parallel power applications, the LPS(B) pin of the AOZ1390DI can be connected to the Disable(B) pin of one or more AOZ1390DI devices across different ports. The LPS feature acts as a watchdog, disabling the port if another port in the same system is faulty or damaged. The ability to prevent excessive power flow from malfunctioning ports makes the AOZ1390D1 well-suited for multiport USB-C Power Deliver (PD).

The AOZ1390DI features Ideal Diode True Reverse Current Blocking (IDTRCB), effectively preventing undesired reverse current from V_OUT to V_IN. An integrated back-to-back MOSFET provides a typical on-resistance of 18 mΩ and a high Safe Operating Area (SOA).  Input operating voltage ranges from 3.3 V to 23 V, with both V_IN and V_OUT terminals rated for an absolute maximum of 30 V. 

The AOZ1390DI ideal diode protection switch is available in two variants. The -01 variant automatically restarts after fault conditions are cleared, while the -02 version latches the power switch off.

Both the AOZ1390DI-01 and AOZ1390DI-02 cost $1.40 each in lots of 1000 units. They are available in production quantities with a standard lead time of 12 weeks.

AOZ1390DI-01 product page

AOZ1390DI-02 product page

Alpha & Omega Semiconductor 

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