HUSB381A：Excellent Choice For PD Adapters With Cable

HUSB381A is a new USB PD Source chip with integrated MOS in SOP8 package with CC1 and CC2 pins from Hynetek Semiconductor, supporting Captive Cable PD adapter and pure PD fast charger applications. The HUSB381A supports up to 20V5A 100W applications and supports wave soldering and red glue processes.

The HUSB381A supports 5 programmable FPDOs and 2 APDOs for PPS options. All PDOs are fully compliant with the PD3.1 Rev.1.8 specification. It integrates an N-MOSFET for power path from VBUS to VIN. In case of any fault triggering, the HUSB381A can shut down the power path immediately to protect the connected devices.The HUSB381A requires only 0.5 mA of operating current.

Figure 1: HUSB381A SOP-8L Package and Demo Drawing

FEATURES

• USB Type-C 2.1 and USB PD3.1 Compliant

    – Support 5 V, 9 V, 12 V, 15 V, 20 V FPDOs 

    – Support 2 programmable APDOs 

• Integrated VBUS Power Path Switch

• Support Constant Voltage Loop(CV)

• Multiple Cable Compensation Options

• Integrated OVP, UVP, UVLO, OCP, FOCP and TSD Protections

• SOP-8L package

• ±2 kV HBM ESD Rating for USB IO

The HUSB381A has a built-in ultra-low impedance N-MOS, which reduces power loss under high-current (e.g., 5 A) operation. It also simplifies circuit design, saves board space and greatly reduces BOM cost, meeting the need for high efficiency and miniaturization.

Figure 2: HUSB381A Typical Application Circuit Diagram

Aiming at the demand of single C-port fast charging within 100W in the current market, the above design supports free setting of PD output voltage and current.