In May 2021, the latest specification for USB PD3.1 was released, and on October 1, revision 2.1 of the USB Type-C Specification for Cables and Connectors was announced. These two new specifications directly increase the fast charging power from the current 100W to 240W, covering all aspects of life and providing new development opportunities for the fast charging market. Chip manufacturers are the first to insight into the market opportunity, according to the charging head network observation, there have been a number of manufacturers launched USB PD3.1 supporting fast charging chips, detailed chip specifications see the table.
It can be seen from the table data compiled by the charging head network that the first batch of chip types that support USB PD3.1 fast charging are protocol chip, E-marker chip, synchronous rectification, DC-DC buck chip, etc. These chips can be applied to chargers, cables, car charging, outdoor power supply and other fields.
It is worth mentioning that at present, Apple, Flash Pole, Yajingyuan, New Sibao and other manufacturers have taken the lead in launching a 140W USB PD3.1 fast charger, and the USB PD3.1 fast charging ecology has gradually improved.
Based on the latest USB PD3.1 standard, Apple launched its first 140W Gallium Nitride fast charger to promote the landing of the USB PD3.1 standard. At the same time, the charging head network also noted that since the release of the new standard, a number of semiconductor companies in the industry have launched a number of chip products that meet the USB PD3.1 standard, becoming the first batch of crab eaters in the industry.
Major upgrades to the fast charging specification
In May 2021, the USB-IF Association officially released the USB PD3.1 fast charging standard, increasing the maximum charging power to 240W, while adding three sets of fixed output voltage levels of 28V, 36V and 48V, as well as three groups of adjustable voltage gears of 15V-28V, 15V-36V, and 15V-48V (AVS for short).
The latest USB PD3.1 fast charging standard is an advanced version of the USB PD3.0 standard, PD3.1 covers the content of PD3.0, can be fully backward compatible; at the same time, in terms of the title of the standard, USB PD3.0 is also gradually replaced by USB PD3.1 SPR, SPR refers to the standard power range, when the power of PD fast charging products within 100W, can be called USB PD3.1 SPR. When the product power is greater than 100W, it belongs to the USB PD3.1 EPR (Extended Power Range) device.
For power supply products, in order to meet the application requirements of USB PD3.1 EPR, almost all components in the fast charger have ushered in new challenges, especially power chips, protocol chips, MOS, capacitors, transformers, connectors, etc.
In terms of cables, under the USB PD3.1 standard, it can be divided into two specifications: 20V level ordinary cables and 50V level EPR cables. However, it should be noted that the USB-IF Association has terminated the application for ordinary 100W cable certification at the end of December, and subsequent USB-C to USB-C cables need to be certified for 240W. This not only places higher demands on the cable material, but also requires the latest standard E-Marker chip.
As can be seen through the ChargeerLAB POWER-Z KM002C test, the latest EPR cable can support both 50V 5A 250W power transfer while maintaining a 40Gbps data transfer standard.
Fast charge protocol chip
Protocol chip for USB PD3.1 fast charger is very important, the current market to support USB PD3.1 SPR (USB PD3.0) fast charging standard protocol chip has been more than 100 models, but can support USB PD3.1 EPR fast charging protocol is rare. According to the incomplete statistics of the charging head network, only several manufacturers such as Yingji Core, Infineon, Tiande Yu, Huinengtai and other manufacturers have launched USB PD3.1 EPR protocol chips.
INJOINIC IP2736
The INJIXIN IP2736 protocol chip supports USB PD3.0/3.1 protocol, supports 28V EPR file output, and supports E-Marker cable. At the same time, this protocol chip also supports QC5/QC4+QC3+/QC3.0/QC2.0 fast charging protocol, supports China's converged fast charging standard UFCS, supports FCP/SCP fast charging protocol, supports AFC fast charging protocol, supports SFCP fast charging protocol and MTK PE fast charging. Mobile phone computer fast charging is all take-all, and the protocol support is very comprehensive.
Related Reading:
1. Preemptively support 140W fast charging, Chinese chip manufacturers launched USB PD3.1 protocol chips
2. IP2736+IP6550, Yingjixin released 140W USB PD3.1 fast charging solution
Infineon CYPD3135
Infineon's CYPD3135 is a USB PD3.0 fast charging protocol chip belonging to the EZ-PD CCG3 series, which is a highly integrated USB-C type controller that complies with the latest USB-C and PD standards. CCG3 is a complete USB-C and USB power port control solution for devices such as notebooks, monitors, docking stations, and power adapters.
The Infineon CCG3 uses proprietary M0S8 technology with a 32-bit, 48-MHz ARM Cortex-M0 processor with 128 KB of flash memory, 8KB of SRAM, 20GPIOS, full-speed USB device controller. A cryptographic engine, 20V fault-tolerant regulator, and a pair of FET-switched 5V (VCON) power supplies can be used to power the cables. The CCG3 also integrates two pairs of gate drivers to control external VBUS FETs and system-level ESD protection, and in power supply applications, CGG3 is commonly used in 40-QFN and 32-QFN packages.
1. Disassembly report: Apple's new MacBook Pro16 comes standard with a 140W Gallium nitride charger
Infineon PMG1-S3
Infineon's EZ-PD PMG1-S3 next-generation USB PD3.1 protocol chip supports 28V 5A (140W) output and power pickup. The PMG1 protocol chips are built into the MCU microprocessor, which provides additional control functions for smart speakers, notebook computers, power tools and storage devices.
The chip is available in QFN-48 and BGA-97 packages, with integrated USB PD3.1 protocol, built-in ARM M0 and M0+ processors, on-chip integration of 256K Flash and 32K SRAM, support for GPIO pins, built-in channel tube drive circuitry, voltage regulators for on-chip power supply, and pin high voltage protection circuits. The PMG1 also provides overvoltage and overcurrent protection, short-circuit protection, and reverse current protection. The newly introduced firmware protection feature supports security features such as secure firmware boot and signed firmware updates.
1, USB PD3.1 fast charging chip mass production!
JADARD Tiande Yu JD6622
Tiande Yu JD6622 is the latest release of USB PD3.1 fast charge protocol chip, using QFN5*5-32L package, built-in ARM M0+ 64K Flash+8KB SRAM, support PD3.1 EPR 28V, UFCS, and compatible with a variety of protocols, but also support dual C port independent fast charge output and power intelligent provisioning.
In terms of protection, it also integrates over-temperature protection, output overcurrent protection, input overvoltage protection, I/O pin overvoltage protection, supportSA2C/UART function, supports optocoupler and FB feedback, and is used in product fields such as adapters and DC-DC.
1. Tiande Yu launched a variety of fast charging protocol chips, which support 140W PD3.1 fast charging
Hynetek Hynetek HUSB311
Hylanda HUSB311 complies with the latest USB Type-C and USB PD3.1 standards and integrates a full BMC code, including a receiver and transmitter. With the physical layer of this USB BMC power transfer protocol, it is capable of handling the USB PD3.1 protocol and supports 140W (28V/5A) power supply and power withdrawal. The HUSB311 can be configured for USB PD3.1 Source only, USB PD3.1 Sink only and USBPD3.1 DRP.
E-Marker chip
After the release of the USB PD3.1 fast charging standard, in October 2021, the USB Type-C cable and connector specification revision 2.1 was announced, updating the latest specification of the USB-C cable, enabling it to support up to 240W fast charging, further improving the ecology of the entire USB PD3.1 standard. The update of the cable specification has also brought about the upgrade of the E-Marker chip, according to the charging head network, there are already easy to punch, Yingji core, Weifeng Electronics, Huinengtai and other manufacturers have launched an E-Marker chip that meets the USB PD3.1 EPR fast charging standard.
CPS easy to punch CPS8821
Silk screen printing B1aB is a USB PD3.1 specification E-Marker chip CPS8821 from Easy Punch Semiconductor, which can support USB PD3.1 fast charging, up to 240W power, and is also compatible with USB4 & Thunderbolt 4 & Thunderbolt 3 & USB3.2 data transmission, which has been mass-produced.
1. Disassembly report: Hehong Industrial USB Type-C 2.1 fast charging cable
2. Easy-to-punch CPS8821 helped the birth of the world's long USB4 Cable
INJOINIC IP2133
Injixin IP2133 A highly integrated USB Type-C data cable E-Marker chip that supports USB Type-C2.1 and PD3.1 protocol standards, supports USB PD3.1 EPR extended power applications, and supports SOP' communication. At the same time, the BMC protocol and physical layer protocol of the internally integrated hardware support obtaining manufacturer information instructions and supporting EPR mode.
VIA VL153
In response to the update of the USB-C to USB-C cable standard, Weifeng Electronics has launched a new E-Marker chip VL153, which not only supports USB PD3.1, but also supports protocols such as USB4 data and thunderbolt, which has been applied to the USB4 data cable of Coaxial Technology. The chip and the previous generation VL152 use a Pin to Pin design, convenient for customers to achieve product upgrades at the lowest cost.
1. Weifeng Electronics launched VL153, an E-Marker chip that supports USB4
2. Disassembly report: coaxial technology USB4 data cable
Hynetek Hynetek HUSB332B
Hynetek Semiconductor's USB E-Marker chip HUSB332B has been certified to USB PD3.1, TID 6773. The chip supports PD3.1 EPR 240W power transfer and USB4 Gen3 40Gbps data transfer, and also supports Thunderbolt 3 function, which is suitable for 240W USB-C to USB-C cables. It is reported that HUSB332B is also the first chip in the industry to pass USB PD3.1 certification. Its package is backward compatible with HUSB332 and HUSB332A and will be brought to market in the near future.
Synchronous rectifier chip
USB PD3.1 fast charging standard brings greater power and higher output voltage, which puts forward new requirements for power chips, high-power power supplies generally need to use PFC+LLC power architecture, not only that, USB PD3.1 fast charging source also needs to use a higher withstand voltage value of the synchronous rectifier chip to meet the minimum 28V output voltage requirements of the EPR power range. It is understood that the mp6924A and NXP TEA2095 two synchronous rectifier chips launched by MPS can meet the above needs and have been applied in some power supply products.
MPS core source MP6924A
The MPS MP6924A is a dual synchronous rectifier controller with two integrated synchronous rectifier controllers for rectification applications with two secondary coil outputs of LLC for synchronous rectification applications of LLC converters. Can save a controller, simplify the secondary circuit design, while supporting a wide range of operating voltage of 4.2-35V, can be suitable for USB PD3.1 fast charge 140W power supply design, the chip has been dell 130W power supply adoption.
1. MPS launched a dual synchronous rectifier controller, which is dedicated to LLC
NXP TEA2095
The NXP® TEA2095 is a dual synchronous rectifier controller with two internal drivers that can drive two synchronous rectifier tubes simultaneously and support independent operation. It is worth mentioning that the chip supports a wide voltage output of 4.5V-38V, which meets the current USB PD3.1 fast charging applications.
1. Juneng Chuangxin launched a 240W Gallium nitride power supply scheme, which supports USB PD3.1 fast charging
Buck chip
The reason why the buck chip appears in the USB PD3.1 fast charge chip is mainly because the AC-DC ecology for USB PD3.1 fast charge is not mature enough. At present, the mainstream scheme is to develop a fixed voltage value of ac-DC power supply output based on the architecture of PFC+LLC, and then achieve 5-28V output through secondary voltage regulation of the buck chip, and finally control the output by the protocol chip. At present, injechip IP6550 and Maoruixin MK9218 can be used for the design of USB PD3.1 fast charger.
INJOINIC IP6550
Injixin IP6550 is a synchronous buck controller that supports USB PD3.1 fast charging standard, supporting up to 36V input voltage and output voltage supporting up to 30V, which can meet the current 28V5A 140W high-power output requirements. The chip supports 5A output current, and the built-in synchronous buck controller switches at a fixed 135kHz frequency. It can be used for two USB-A ports, step-down 5V2.4A output, can also be used as a single step-down, the output voltage can be adjusted to meet more occasions. IP6550 built-in input overvoltage, undervoltage protection, built-in output overcurrent, overvoltage, undervoltage and short circuit protection, integrated overtemperature protection inside the chip, and support EN control switch.
1. Support 140W PD3.1 fast charging, Andi core launched IP6550 synchronous buck controller
MERAKI-IC MK9218
MK9218 is a synchronous rectified buck controller that supports 110V input, this buck converter supports up to 100V input voltage, output voltage range of 0.8-60V, fully meets the USB PD3.1 28-48V application, can be used for both internal charger buck and internal buck of power devices. It also supports two chips to form a two-phase synchronous buck, which improves efficiency and reduces output ripple.
1. Maoruixin launched the MK9218 synchronous buck converter, which supports USB PD3.1 applications
Charging head net summary
Although the USB PD3.1 fast charging standard has been released for half a year, the current shipments of the entire market are mainly based on the products of the USB PD3.1 SPR part. The ecology of the USB PD3.1 EPR part is not yet mature, and at present, only one apple brand has mass-produced a 140W fast charging source that meets the latest standards, and there is almost no corresponding product at the power terminal, which also leads to many manufacturers have been in a wait-and-see state.
However, the charging head network found through the collation that after the release of USB PD3.1 fast charging technology, MPS, NXP, Yingji core, Maorui core, Huinengtai, Infineon, Tiande Yu, Yi Chong, Weifeng Electronics and many other manufacturers have laid out USB PD3.1 fast charging chips sooner or later, and the products have their own characteristics, covering LLC synchronous rectification, synchronous buck, protocol, E-Marker and other different applications, becoming the first enterprise in the industry to enter the USB PD3.1 fast charging market.
It is believed that as more and more chip manufacturers enter the USB PD3.1 fast charging market, the entire fast charging ecosystem will gradually mature.