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ST-ONEMPTR

ST-ONEMPTR

ST-ONEMP

Active

Fully integrated controller for multiport smart chargers

Quantity $ per Unit Savings
1 - 9$8.320%
10 - 24$7.5110%
25 - 99$7.1514%
100 - 249$6.2125%
250 - 499$5.9429%
500$5.4135%
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Out of stock
$8.32
Parameter NameParameter Value
Supply Voltage Max Volt16.0
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius125.0
ECCN US3A991.a.2
ECCN EUNEC
Packing TypeTube
RoHs compliantEcopack2
GradeIndustrial
Package NameSSOP 36 LD 300 MIL .0315 PITCH

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.

Key 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