High-voltage MCU Streamlines Embedded System Design
Infineon Technologies has released the EZ-PD™ PMG1-B1 complementing the EZ-PD PMG1 family of high-voltage microcontrollers (MCU) with USB-C power delivery (PD).
The PMG1-B1 PD MCU is a single-chip solution that integrates a USB-C PD controller, a buck-boost battery charge controller, high voltage protection circuitry, and a microcontroller. It targets battery-powered applications, including power tools, personal care products, smart home appliances, and other portable devices.
“As a market leader in USB-C PD microcontrollers, we are excited to introduce the new PMG1-B1 PD MCU, which simplifies USB-C PD integration in battery-powered systems for OEMs,” said Ganesh Subramaniam, Senior Vice President and General Manager of Wired Connectivity Solutions at Infineon. “The MCU offers an unprecedented level of integration, enabling USB-C PD connectivity, battery charging, high voltage protection, and MCU functions in a single chip.”
The device is USB PD 3.1 certified and based on Infineon’s market-proven EZ-PDTM stack, ensuring compliance and interoperability with the latest USB-C and PD specifications. It combines a USB-C PD controller, a buck-boost battery charge controller, a 32-bit Arm® Cortex®-M0 processor with a 128 KB flash memory MCU, and a range of analog and digital peripherals, such as timers, UART, SPI, I²C interfaces, and PWMs. In addition, the PMG1-B1 integrates other high-voltage circuitry, such as VBUS-powered regulators, FET gate drivers, and advanced fault protection circuitry, including over-voltage, over-current protection, and VBUS to CC short-circuit protection, to ensure robust and reliable operation.
The PMG1-B1 PD MCU supports a wide input voltage range of 4 V to 24 V with 40 V tolerance and programmable switching frequency (150 to 600 kHz) to deliver up to 100 W (20 V, 5 A) power to the USB-C port. This enables the charging of 2- to 5-cell batteries in an integrated USB-C PD MCU solution. With its high level of integration, the MCU provides a footprint-optimized single-chip solution and a reduced bill-of-material (BOM) for customers.
To support the development of applications implementing the MCU, Infineon provides developers with the ModusToolbox™ firmware development environment. Together with the appropriate board support package (BSP) and the EZ-PD PMG1 software development kit (SDK), it eliminates the need for an expert-level understanding of the intricacies of the device resources.
