Part: HUSB238 — Hynetek Semiconductor Co., Ltd.

Type: USB Power Delivery (PD) Sink Controller

Description: The HUSB238 is a highly integrated USB Power Delivery (PD) controller as a sink role, compatible with USB PD3.0 V1.3 and Type-C V1.4, supporting charge protocols such as Apple divider 3, BC1.2 SDP, CDP, and DCP.

Operating Conditions:

• Supply voltage: 3.0V to 25V
• Operating temperature: -40 °C to 125 °C
• VBUS, GATE pins voltage rating: 30V
• CC1, CC2 pins voltage rating: 25V

Absolute Maximum Ratings:

• Max VBUS, GATE pins voltage rating: 30V
• Max CC1, CC2 pins voltage rating: 25V

Key Specs:

• USB-IF certified PD sink controller with TID 3666
• Compatible with Type-C 1.4 & USB PD3.0 version 1.3
• Operating voltage range: 3.0V to 25V
• External resistor configurable RDO voltage and current
• I2C interface for advanced PDO request
• eMarker emulator for cable applications with output current > 3A
• Integrated load switch gate drivers (PMOS)
• VBUS over-voltage (OVP) and under-voltage (UVP) protection

Features:

• USB Power Delivery (PD) sink-only power role
• Support charging of 1 to 4 cell batteries
• Support type-C 1.4 & USB PD3.0 version 1.3
• External resistor to set the target RDO
• Flexible monitoring and configuration via I2C interface

Applications:

• Power tools
• Smart speakers
• Portable electronics
• Internet of Things (IoT) devices
• Handsets
• Wireless chargers
• Industrial applications

Package:

• DFN-10L (3 mm x 3 mm)
• SOT33-6L (3.9 mm x 4 mm)

• USB Power Delivery (PD) sink-only power role
• Support charging of 1 to 4 cell batteries
• Support type-C 1.4 & USB PD3.0 version 1.3
• External resistor to set the target RDO
• Flexible monitoring and configuration via I 2 C interface

• Power tools
• Smart speakers
• Portable electronics
• Internet of Things (IoT) devices
• Handsets
• Wireless chargers
• Industrial applications

HUSB238_002DD Pinout

Package: DFN-10L (3mm × 3mm)

Additional Pin (Gate Driver Output):

Notes

• The HUSB238_002DD is a USB Power Delivery (PD) sink controller in a 10-pin DFN package.
• GATE pin: The schematic diagrams show a GATE output pin for controlling an external PMOS load switch (Q1). This pin is present on the IC but may not be explicitly numbered in the standard 10-pin count if it shares a pad or is part of the internal gate driver. Verify against the full HUSB238 datasheet for exact GATE pin location.
• I²C Interface: SCL and SDA pins support I²C communication at address 0x08 for advanced PDO request and register access.
• Voltage Rating: VBUS, GATE pins rated to 30V; CC1, CC2 pins rated to 25V.
• Operating Range: 3.0V to 25V operation; -40°C to 125°C temperature range.
• Default RDO: Factory default is 20V/3.25A; can be modified via RVSET/RISET resistors or I²C interface.