ST-ONEHP

Power Supply Controllers, Monitors Overview

The ST-ONEHP is a fully integrated digital controller for USB-PD 3.1 Extended Power Range chargers, embedding an ARM Cortex-M0+ core, offline programmable control with synchronous rectification, and a USB PD PHY in a single package. It specifically controls ZVS non-complementary active clamp flyback converters to achieve high power density. The device includes primary-side HV startup, a secondary-side microcontroller with peripherals, and an embedded galvanically isolated dual communication channel. Pre-loaded firmware handles power conversion and EPR USB-PD protocols including AVS and electronically marked cable management.

Power Supply Controllers, Monitors Feature Summary

• Integrates ZVS non-complementary active clamp flyback controller with synchronous rectification and USB-PD 3.1 EPR interface
• Embeds ARM 32-bit Cortex-M0+ MCU with flash memory for digital power control and USB protocol handling
• Features reinforced galvanically isolated dual communication channel connecting primary and secondary sides
• Utilizes novel non-complementary control technique to ensure high efficiency and low no-load power consumption

Power Supply Controllers, Monitors Applications

• High power density chargers and adapters with EPR compliant USB-PD interface
• Smart power adapters utilizing MasterGaN power stages
• AC/DC converter reference designs supporting wide input mains ranges

Power Supply Controllers, Monitors Procurement Notes

Verify component status as the ST-ONEHP is listed as NRND (Not Recommended for New Designs). Confirm availability of long-term supply commitments or end-of-life notifications through official STMicroelectronics channels before initiating new production plans. Ensure compatibility with required firmware configurations for specific USB-PD EPR implementations.

Power Supply Controllers, Monitors Selection Notes

Select this controller for applications requiring high integration of digital power control and USB-PD 3.1 EPR communication. It is designed to work in companion with MasterGaN power stages to enable small magnetic components. Consider its pre-loaded firmware capabilities for standard EPR protocols and the need for potential memory adaptation to fit final product specifications.

Power Supply Controllers, Monitors Part Context

The ST-ONEHP belongs to the ST-ONE family, recognized as the world’s first digital controllers embedding an ARM Cortex-M0+ core in a single package. It represents a system-level solution combining power conversion control and communication protocols, specifically targeting the evolution of USB charging standards towards higher power delivery ranges.

Power Supply Controllers, Monitors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. As the component is marked NRND, engineers should consult STMicroelectronics directly for comparable alternatives or transition strategies.

Power Supply Controllers, Monitors FAQ

What type of converter topology does the ST-ONEHP control?

It is specifically designed to control ZVS non-complementary active clamp flyback converters.

How are the primary and secondary sides connected in the ST-ONEHP?

The two sides are connected through an embedded galvanically isolated dual communication channel.

Does the ST-ONEHP support USB-PD 3.1 AVS?

Yes, the pre-loaded firmware handles communication protocols for EPR USB-PD including AVS.