ST-ONEMP

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Fully integrated controller for multiport smart chargers

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Product overview

Description

The ST-ONEMP is the world’s first digital controller embedding ARM Cortex M0+ core, an offline programmable controller with synchronous rectification, and USB PD PHY in a single package. Such a system is specifically designed to control ZVS non-complementary active clamp flyback converters to create high power density chargers and adapters with a first USB-PD interface and a second output.

The device includes an active clamp flyback controller and its HV startup on the primary side, a microcontroller and all the peripherals required to control the conversion and the USB-PD communication on the secondary side. The two sides are connected through an embedded galvanically isolated dual communication channel. By using a novel non-complementary control technique and specifically designed power modes the device allows to reach both high efficiency and low no load power consumption

The device is delivered with a pre-loaded firmware which handles both the power conversion and the communication protocols for USB-PD including optional PPS and electronically marked cable management.

The output power and available PDOs on the USB-PD port can be changed according to a power sharing pin input to allow power sharing with a second output.

A dedicated memory stores a default device configuration during factory process. The user can change or adapt this memory area to fit the final product specifications.

  • All features

    • ZVS non-complementary active clamp flyback controller with synchronous rectification and USB-PD 3.1 PPS interface
    • ARM® 32-bit Cortex®-M0+ MCU with 64 kB flash memory for digital power control and USB protocol
      • FW programmable secondary side MCU controls both synchronous rectifier and ZVS active clamp flyback on the primary side to improve system efficiency in every condition
      • High switching frequency operations in companion with MasterGaN power stage allow to use small size magnetic components, including planar transformers
    • Reinforced galvanically isolated dual communication channel compliant with IEC 62368-1:
      • 4 kV pk transient voltage
      • 9.6 kV pk 1min hipot type testing
      • 6.4 kV pk 1s hipot production testing
    • 800 V high voltage startup with integrated input voltage sensing and Brown-in/out functions
    • Active input filter capacitor discharge circuitry for reduced standby power compliant with IEC 62368-1
    • Fully Integrated USB-PD PHY with 24 V tolerant protection, and integrated load switch driver

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STMicroelectronics - ST-ONEMP

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
ST-ONEMP
Active
SSOP 36 LD 300 MIL .0315 PITCH Industrial Ecopack2
ST-ONEMPTR
Active
SSOP 36 LD 300 MIL .0315 PITCH Industrial Ecopack2

ST-ONEMP

Package:

SSOP 36 LD 300 MIL .0315 PITCH

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SSOP 36 LD 300 MIL .0315 PITCH

Grade

Industrial

RoHS Compliance Grade

Ecopack2

ST-ONEMPTR

Package:

SSOP 36 LD 300 MIL .0315 PITCH

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SSOP 36 LD 300 MIL .0315 PITCH

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors