SL-USBPD27S

Solution Description

USB has evolved from a quite simple data interface capable of supplying limited power to a primary provider of power with a data interface.

The SL-USBPD27S solution, presented here, is a USB-PD 3.1 reference design supporting pps capability. The architecture consists of three main stages:

A power supply section implementing a QR fly-back topology based on the STD7N65M6 MDmesh™ M6 primary MOSFET, which combines a very low RDS(on) per area plus a high effective switching behaviour.
A power control stage embedding the STCH03 on the primary side able to combine high performance low-voltage PWM controlling features with a 650V HV start-up cell in the same package, ensuring low pin count.
A digital control stage based on the STM32G071KB Arm Cortex-M0+ MCU that manages the USB Power Delivery stack, controls the USB Type-C connector and the Power Delivery 3.1 communication protocol, while controlling the adaptive synchronous rectification through its peripherals. Moreover, The TCPP01-M12 safely interfaces the USB-C connector to the MCU, ensuring the highest robustness and protecting against any destructive electrostatic discharge (ESD).

Here following the key technical benefits related to the solution:

STM32G0 MCU based approach for a high flexibility to follow the Power Delivery standard evolution and to implement additional customized application layers, such as the synchronous rectification.STM32G0 is the world’s 1st standard USB PD 3.1 microcontroller with a USBPD interface
Specific algorithm running on STM32 to control the VBUS on the secondary side, and compliant to USB Type-C and Power Delivery and PPS specification. The algorithm also implements the cable drop compensation as well minimizes internal drops (i.e., due to RDSon), featuring patented converter control strategy
Unique and patented Adaptive Synchronous Rectification Algorithm, MCU- based, for improved efficiency and reduced BoM

Key Product Benefits

STCH03 - flyback converter

The STCH03 current-mode controller is designed for an offline quasi-resonant ZVS (zero-voltage-switching at switch turn-on) flyback converter. It combines a high-performance low-voltage PWM controller chip and a 650V HV start-up cell in the same package. Constant output voltage (CV) regulation loop is achieved by secondary side feedback, while providing constant output current regulation (CC) using primary-sensing feedback.

STD7N65M6 - Power MOSFET

The new MDmesh™ M6 technology incorporates the most recent advancements to the well-known and consolidated MDmesh family of SJ MOSFETs. STMicroelectronics builds on the previous generation of MDmesh devices through its new M6 technology, which combines excellent RDS(on) per area improvement with one of the most effective switching behaviors available, as well as a user-friendly experience for maximum end-application efficiency.

STM32G071KB - high-performance microcontroller

The STM32G071x8/xB mainstream microcontrollers are based on high-performance Arm® Cortex®-M0+ 32-bit RISC core operating at up to 64 MHz frequency. They provide a fully integrated USB Type-C Power Delivery controller ideal for the presented solution.

TCPP01-M12 USB Type-C port protection

The TCPP01-M12 (Type-C port protection) is a single chip solution for USB Type-C port protection that facilitates the migration from USB legacy connectors type-A or type-B to USB Type-C connectors.

ESDA15P60-1UiM - TVS diode

The ESDA15P60-1U1M is a unidirectional single line TVS diode designed to protect the power line against EOS and ESD transients.

Read more Read less

All Features
USB Type-C connector is a universal ports and ensure reversible plug orientation

Deliver up to 27W through the USB Power Delivery (PD) profiles while supporting charging algorithms with the Programmable Power Supply (PPS).

Features adaptive synchronous rectification.

Thanks to the minimum bill of material, the SL-USBPD27S solution allows to easily design compact and cost-effective adapters.

Fully re-programmable with STLINK-V3MINI adapter plus the STM32CubeIDE advanced C/C++ platform
Read more Read less

Kit Description

Distributor availability of STEVAL-USBPD27S

Distributor Name	Region	Stock	Min. Order	Third party link

Distributor reported inventory date:

Distributor Name

Distributor reported inventory date:

The STEVAL-USBPD27S is a 27W AC-DC adapter reference design works as USB Power Delivery Provider, with a single USB Type-C port supporting Programmable Power Supply (PPS) and featuring adaptive synchronous rectification. Thanks to a minimal bill of materials, it allows users to easily design compact and cost-effective adapters.

The STEVAL-USBPD27S consist of:

A Power Section, containing a single-ended flyback converter based on the STD7N65M6 N-channel MDmesh M6 Power MOSFET, and its control stage based on the STCH03 offline PWM controller (placed on a dedicated power control module).
A Digital Control Section based on the STM32G071KB mainstream Arm Cortex-M0+ MCU with fully integrated USB Type-C Power Delivery controller.

The reference design accepts a wide range of input voltage and delivers two well-regulated fixed PDOs (5V@5A, 9V@3A) and two APDOs (5VProg@5A and 9VProg@3A), finely adjusted to the advertised voltage range (Programmable Power Supply or PPS), thus managing the VCONN, as requested by the USB Power Delivery specification. The adapter meets the most stringent energy saving recommendations (EU CoC – Tier 2 ver. 5 and DOE Level VI) ensuring < 40mW of no-load power consumption. All PDOs are compliant with CoC ver. 5 – Tier 2 and DOE Level VI requirements except the 9VProg@3A APDO, guaranteeing the compliance with the minimum four-point average efficiency in active mode. The system has been tested to verify conducted noise emissions and compliance with the EN55022 (Class B) using standard average detectors, at half and full load with input voltage of 115 VAC and 230 VAC.

Get the Software

All Evaluation Features

USB Power Delivery 3.1 Certified

Universal input mains voltage range: 90 VAC to 264 VAC (line frequency: 45 Hz to 65 Hz)

PD Output:

Two fixed PDOs: 5V@5A, 9V@3A

Two APDOs (PPS): 5VProg@5A, 9VProg@3A

PPS Mode: 20 mV step for CV, 50 mA step for CC

Output Power: 27 W

Minimum four-point average efficiency in active mode compliant with CoC ver. 5 – Tier 2 and DOE Level VI requirement

< 40 mW no-load standby power

Adaptive Synchronous Rectification controlled by on-board MCU

Load feed-forward

OVP, UVP, OC, short-circuit protections

ESD Protection exceeding IEC61000-4-2 Level 4 on CC lines

Immunity against surge current on VBUS pin up to 35 A in a 8/20 µs waveform, according to IEC61000-4-5

Compliant with EN55022 (Class B) standard for conducted noise emissions

Compact form factor:

59x35x21mm dimensions

Power Density: 10.2 W/inch3
Read more Read less

Microcontrollers & microprocessors

Part number	Description
STM32G071KB	Mainstream Arm Cortex-M0+ MCU with 128 Kbytes of Flash memory, 36 Kbytes RAM, 64 MHz CPU, 4x USART, timers, ADC, DAC, comm. I/F, 1.7-3.6V

Part number

STM32G071KB

Mainstream Arm Cortex-M0+ MCU with 128 Kbytes of Flash memory, 36 Kbytes RAM, 64 MHz CPU, 4x USART, timers, ADC, DAC, comm. I/F, 1.7-3.6V

Power management

Part number	Description
STCH03	Offline PWM controller for low standby adapters

Part number

STCH03

Offline PWM controller for low standby adapters

Protections and EMI filters

Part number	Description
ESDA15P60-1U1M	57 A - 8/20 us, 13.2 V TVS in QFN-2L

Part number

ESDA15P60-1U1M

57 A - 8/20 us, 13.2 V TVS in QFN-2L

Compact 27W USB Type-C Power Delivery 3.1 with PPS adapter

Solution Description

Key Product Benefits

STCH03 - flyback converter

STD7N65M6 - Power MOSFET

STM32G071KB - high-performance microcontroller

TCPP01-M12 USB Type-C port protection

ESDA15P60-1UiM - TVS diode

All Features

Kit Description

Estimated cost

Something went wrong with the server request. Please try again in a few moments.

Project Title:

Project Description:

Application:

End Application:

Nature of Business:

Military Related:

Country/Region where the Software will be used:

Comment:

Request for software successfully submitted. The approval process may take up to 48 hours. After you have been approved, you should receive a link to the requested software via email.

Get the Software

All Evaluation Features

Microcontrollers & microprocessors

Power management

Protections and EMI filters

Did you know?