Electronicdesign 7518 0626npbwstmicro2

Digital-Power MCUs Promote Cleaner Cloud Design

June 27, 2014
Techniques such as digital control of computer power supplies can help boost data-center efficiency to over 60% by continuously adjusting to fluctuating power demand, according to Uptime Institute (a third-party data-center research/consultant organization).

Techniques such as digital control of computer power supplies can help boost data-center efficiency to over 60% by continuously adjusting to fluctuating power demand, according to Uptime Institute (a third-party data-center research/consultant organization). STMicroelectronics says its STM32F334 digital-power microcontroller (MCU) helps simplify the data-center industry’s transition to energy-efficient digital power supplies (e.g., multi-phase interleaved or resonant soft-switching) by integrating all major power-control function on one chip. The MCU’s 217-ps timer offers high precision to improve power-supply efficiency, while asynchronous fast reaction time promotes safe operation. The 217-ps resolution also allows for fine control of resonant soft-switching converters. Overall, this will help maximize the impact of digital power conversion to improve the cloud’s efficiency. The ARM Cortex-M4-based MCU features on-board core-coupled memory (CCM-SRAM). Peripherals include two 5-Msample/s, 12-bit analog-to-digital converters; three comparators with 25-ns response time from analog input to PWM output; three digital-to-analog converters plus one op amp with built-in gains; as well as CAN and I2C. The STM32F334 comes in LQFP64, LQFP48, or LQFP32 packaging.

STMICROELECTRONICS

Comments

To join the conversation, and become an exclusive member of Electronic Design, create an account today!