AP22950 High-Voltage Power Switch

Product Highlights > AP22950 High-Voltage Power Switch

            AP22950 High-Voltage Power Switch
                    Diodes overvoltage-protected high-side switches with 110 V surge protection improve USB PD3.1 SPR port robustness
    

Image of Diodes Incorporated AP22950 High-Voltage Power Switch The Diodes AP22950 high-voltage power switch has multiple protection features, including reverse-current protection (RCP), undervoltage lockout (UVLO), overvoltage lockout (OVLO), and overtemperature protection (OTP). These features provide a robust V_BUS switch for USB power delivery (PD) 3.1 standard power range (SPR) ports. There is a built-in TVS diode on the V_BUS pin which, with a 22 µF input capacitor, protects both it and the downstream system from surges up to 110 V, as per IEC61000-4-5.

Enhanced RCP blocks reverse currents while ensuring that it can supply the highest voltage to the internal system, enabling support for portable devices that have multiple power inputs. The AP22950 operates from a 2.5 V to 22.5 V V_BUS input voltage range with a low 30 mΩ on-resistance, allowing it to support USB PD3.1 SPR V_BUS switch applications up to 100 W. The device’s default 23 V overvoltage protection (OVP) threshold can be adjusted from 4.0 V to 23 V by an external resistor on the OVLO pin. The ACKb pin provides a V_BUS voltage status indicator. The AP22950 is available in a tiny U-WLB2515-15 package.

Features

Meets IEC61000-4-5 110 V surge ratings and improves system robustness
Wide 2.5 V to 22.5 V operating input voltage range supports USB PD3.X SPR
Seamless automatic reverse-current blocking diode mode allows the switch to operate as a diode when V_OUT is greater than V_BUS, removing potential reverse-current paths
Meets 110 V IEC61000-4-5 surge protection requirements, providing robust protection against USB Type-C® V_BUS surges
Low 30 mΩ R_ON supports continuous load currents up to 5 A and output power up to 100 W