1 30, 2026
It's time to give your charger a “brain upgrade.” Hynetek's latest ultra-low-power, high-efficiency power supply controller HUSB363A with integrated MCU is your perfect choice.

Figure 1: HUSB363A Demo
To meet diverse product design requirements, the HUSB363A offers two compact package options: QFN4x4-24L and QFN4x4-16L. The HUSB363A is pin-to-pin compatible with the HUSB363 and other similar chips, enabling direct upgrade and replacement of the HUSB363.

Figure 2: HUSB363A Pin Definition
The HUSB363A integrates both current and voltage loops, eliminating the need for an external TL431 and simplifying the peripheral circuitry.

Figure 3: Typical Application Circuit for HUSB363A QFN-16L Package

Figure 4: Typical Application Circuit for HUSB363A QFN-24L Package
Ultra-low power consumption: The HUSB363A features standby power consumption as low as 100 μA, meaning its energy usage is virtually negligible even when the charger remains plugged into an outlet for extended periods.
The HUSB363A innovatively integrates SR DRAIN voltage detection, enabling Low Power Supply (LPS) and AC high/low voltage detection. This effectively prevents damage to equipment caused by anomalies like single-point failure of sampling resistors, safeguarding user device safety.
The HUSB363A supports external VSNS voltage-sharing feedback, enabling higher output voltages unrestricted by the chip's voltage tolerance. This makes it suitable for chargers in two-wheeled, three-wheeled, and four-wheeled vehicles, as well as power tool chargers. Hynetek has also launched a complete solution for medium-to-high-power AC-DC power adapters/chargers using the HUSB363A as a universal handshake protocol.

Figure 5: Hynetek High-Power AC-DC Power Adapter/Charger Solution
FEATURES
USB Type-C PD Source with PPS Supported
– Compliant with USB Type-C Specification Revision 2.4
– Compliant with USB PD Specification Revision 3.2
Integrated VCONN Power for eMarker Detection
Integrated High Voltage Driver for N-MOSFET
Multiple DPDM Charging Protocols Implemented
– BC1.2 DCP and Divider 3
– QC2.0/3.0/3+, AFC, FCP, SCP, UFCS
– PE 1.1+/2.0
Multiple Hardware Cable Compensation Options
Programmable Constant Voltage and Constant Current Control
Fault Protections including Over Voltage Protection, Over Current Protection, Fast Over Current Protection, Over-Temperature Protection, Under Voltage Protection, CC Over Voltage Protection, Thermal Shut Down
Integrated MCU with MTP Memory
100 μA Deep Sleep Mode Quiescent Current
Configurable I2C Slave/Master
Built-In 11-bit SAR ADC
±3 kV HBM ESD Rating for USB Type-C Connector Pins