Features

•

USB PD 3.0 compliant

•

45 Hz to 65 Hz)

•

Three fixed PDOs available: 5 V, 9 V, 15 V – 3 A continuous operation

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Load power limited to 45 W

•

Minimum four-point average efficiency in active mode compliant with CoC ver. 5

– Tier 2 and DOE requirement

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Efficiency > 50% with Pout = 250 mW

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< 35 mW no-load standby power

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Adaptive synchronous rectification with digital driver and controller

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Load feedforward

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OVP, UVP, OC, short-circuit protections

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ESD protection: > 30 kV contact on VBUS and 20 kV contact on CC lines and

according to IEC61000-4-2

•

Immunity against surge current on VBUS pin up to 35 A in a 8/20 µs waveform,

according to IEC61000-4-5

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Compact design: 73x51x25 mm

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RoHS compliant

Description

The STEVAL-USBPD45C 45 W AC-DC adapter reference design features a USB

Type-C connector and functions as a USB Power Delivery provider with a single

source port.

The reference design accepts a wide input mains range and delivers 5 V, 9 V and 15

V output voltage profiles, according to the Source Power Rules of the current USB

Power Delivery specification.

The adapter architecture is based on two boards: the STEVAL-USBPD45P power

supply board implementing the power stage in flyback topology with synchronous

rectification, and the STEVAL-USBPD45I Digital Control Board designed to control

the USB Type-C connector and manage the USB Power Delivery stack and the

adaptive synchronous rectification algorithm.

The flyback converter is based on the STCH03 offline PWM controller for low standby

adapters and the STF7N80K5 MDmesh™ K5 primary MOSFET.

On the secondary side, the adaptive synchronous rectification with STL40N75LF3

Power MOSFET is controlled and driven directly by the STM32F051 MCU, allowing

an overall efficiency improvement with a very low external component count.

The USB type-C port is controlled by the certified STUSB1602A, enabling the VBUS

power path and integrating high voltage protections on VBUS and CC lines.

Product summary

STEVAL-USBPD45C 45 W USB Type-C

Power Delivery adapter reference design

STF7N80K5 very high voltage N-channel

Power MOSFETs designed using

MDmesh™ K5 technology based on an

innovative proprietary vertical structure

STL40N75LF3 N-channel enhancement

mode Power MOSFET produced using

STMicroelectronics’ STripFET™ III

technology

STUSB1602A USB Type-C controller

(with Tx/Rx line driver and BMC)

STM32F051 high performance 32-bit

ARM Cortex-M0 MCU

X-CUBE-USB-PD X-CUBE-USB-PD

software expansion for STM32Cube

STSW-USBPD45CFW SW package for

STEVAL-USBPD45C reference design

STCH03 Offline PWM controller for low

standby adapters

45 W USB Type-C™ Power Delivery adapter reference design based on

STCH03, STM32F051 and STUSB1602A

STEVAL-USBPD45C

Data brief

DB3575 - Rev 3 - February 2019

For further information contact your local STMicroelectronics sales office.

www.st.com