USB battery chargers play a crucial role in our daily lives, providing power to various portable devices such as electric toys, smartphones, laptops, power tools, and electric bicycles. With a series of significant advantages, USB Type-C (USB-C interface) has surpassed other USB types and become the universal standard for wired charging and data transmission.

Modern USB-C chargers equipped with the latest Power Delivery 3.1 (PD 3.1) charging protocol can now provide up to 240 watts (W) of power output, greatly reducing charging time and enhancing overall user experience. In addition, the use of wide bandgap semiconductors in hardware systems is bringing revolutionary efficiency improvements to charging devices: it not only reduces energy loss, but also helps to shrink device size.

USB-C battery charger block diagram

USB-C battery charger block diagram

The following diagram shows the USB-C battery charger solution designed by onsemi. This figure illustrates the power management and power conversion technologies used in USB-C battery chargers. The components used include TP PFC controller, high-frequency quasi resonant flyback/LLC controller, gate driver, synchronous rectification circuit, as well as iGaN and MOSFET devices. These components are divided into two parts, the primary side and the secondary side, to improve system efficiency. As shown in the device table below, most of the functional module devices can adopt the Anson solution.

USB-C Battery Charger - AC Input

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USB-C Battery Charger - DC Input (Automatic)

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USB-C charger reference design

USB-C charger reference design

As shown in Table 1, with strong technical expertise, Ansenmei provides a complete set of efficient system reference design and evaluation boards.

Table 1: Anson Mei USB-C PD System Evaluation Board Series

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240W TP CrM PFC+Double Switching Flyback Reference Design

This design adopts the Ansenmei power management controller solution, including TP PFC controller, high-frequency quasi resonant flyback controller, half bridge gate driver, and synchronous rectification controller, and implements power switching through an integrated GaN FET gate driver. It is specifically developed for the 240W USB-C PD3.1 adapter solution.

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Figure 1: 240W TPFC+Double Switching Quasi Resonant flyback Evaluation Board (EVB)

feature

·AC input voltage range: 90V to 264V

·Adopting totem pole CrM PFC+dual switch quasi resonant flyback topology

·Using iGaN devices to achieve high-frequency operation

·The simulation circuit supports PD3.1 multi-channel output protocol

·Output voltage: 5V, 9V, 12V, 15V, 20V, 28V, 36V, and 48V/5A

·Ripple and noise:<150 mV

·Efficiency: Average 94.75%/95.43% and full load 95.12%/96.17% @ 115VAC/230VAC and 48V/5A

·Output protection: precise overvoltage protection (OVP), overcurrent protection (OCP), short circuit protection (SCP), and open-loop protection

·PCBA size: 89 × 51 × 21.5mm, power density 40W/cubic inch

USB Port Controller

USB-C Port Controller

The Ansenmei USB-C port controller has autonomous working characteristics, combining high energy efficiency and voltage resistance, thereby improving the stability, performance, and cost-effectiveness of the system. This controller is a fully configured USB-C PD controller suitable for solutions up to 100W, with power consumption 40 times lower than competitors, making it an ideal choice for modern electronic devices.

USB-C PD Controller FUSB302B/T

Targeting system designers who expect to implement DRP/SRC/SNK USB Type-C connectors, but require minimal programming.

Main features:

·Supports USB Type-C 1.3 and Power Delivery (PD) 2.0 and 3.0 standards

·Provide complete open source software support, covering all working modes as well as ARM, Linux, and PIC hardware platforms

·Integrate CCx into VCONN switch

·Robust BMC receiver fault tolerance mechanism

·Support multiple product IDs and provide multiple I2C slave address options

·Series product differences:

o FUSB302B - DRP， Charging function can be achieved when the battery is completely depleted

o FUSB302T - SRC， Suitable for travel chargers that require power savings

·Adopting a 14 pin MLP package (2.50mmx2.50mm), - B/T/VMPX

·Using 9-solder WCSP package (1.260mmx1.215mm), - BUCX

USB-C Controller FUSB303B

Support access through configurable I2C addresses to enable control of multiple ports within a single system, or enable fully autonomous operation solely through pin configuration.

Main features:

·Fully self configuring Type-C controller

O Supports USB Type-C specification version 1.3

O Can be configured as Source, Sink, and DRP modes, and supports peripheral functionality

Configure Source and Sink through Try.SRC and Try.SNK

Configure through GPIO or I2C

·Unique detection algorithm ensures stable connection even when using non compliant cables or devices

·The connector pins support up to 28V DC voltage and 4kV HBM ESD protection

·Wide voltage supply range: 2.7V to 5.5V VDD

·Adopting a 12 pin QFN (1.6mm x 1.6mm x 0.375mm) package

The Ansenmei USB-C port controller has autonomous working characteristics, combining high energy efficiency and voltage resistance, thereby improving the stability, performance, and cost-effectiveness of the system. This controller is a fully configured USB-C PD controller suitable for solutions up to 100W, with power consumption 40 times lower than competitors, making it an ideal choice for modern electronic devices.

About The Author

This is reported by Top Components, a leading supplier of electronic components in the semiconductor industry

They are committed to providing customers around the world with the most necessary, outdated, licensed, and hard-to-find parts.

Media Relations

Name: John Chen

Email: salesdept@topcomponents.ru

This is reported by Top Components, a leading supplier of electronic components in the semiconductor industry. They are committed to p with the most necessary, outdated, licensed, and hard-to-find parts.

Media Relations Name: John Chen

Email: salesdept@topcomponents.ru