| STNRGPF12, can be optimized with eDesignSuite
Controller suitable for applications of 600W or more
| Operates in continuous current mode at a fixed frequency

ST has released a dual-channel interleaved boost PFC controller.

STMicroelectronics announced on the 7th that it has released the 'STNRGPF12', a dual-channel interleaved boost Power Factor Correction (PFC) controller that combines the flexibility of digital power with the responsive performance of analog algorithms.

STNRGPF12 can be configured and optimized using ST's software eDesignSuite.

STNRGPF12, suitable for applications of 600W or more, improves the efficiency and reliability of various equipment such as industrial motor control, charging stations, uninterruptible power supplies (UPS), 4G/5G base stations, welding machines, communication switches, home appliances, and data center power supplies.

The STNRGPF12 operates in Continuous-Conduction Mode (CCM) with average current mode control at a fixed frequency.

The internal current loop uses a hardware analog PI (Proportional-Integral) compensator, while externalThe negative voltage loop is performed by a digital PI controller with fast dynamic response.

Through this, the STNRGPF12 can manage cascade control of voltage and current loops and adjust the output voltage by acting on the total average inductor current.

The STNRGPF12 incorporates features including a digital inrush current limiting function that utilizes a Silicon Controlled Rectifier (SCR) in the high-side switching circuit to facilitate soft-start management and improve system stability.

It also supports load feed-forward, current balancing, phase shedding, and fan control. The integrated UART meets the requirements of specific applications by allowing access to non-volatile memory to configure PFC parameters for the user, and enables monitoring of parameters in the field.

Users can maximize the performance of the STNRGPF12 and accelerate design by utilizing ST’s ecosystem, including the STEVAL-IPFC12V1 dual-channel 2kW interleaved PFC reference design and configuration software.

STNRGPF12 is currently in production in TSSOP38 packages, and the price starts at $2.40 for a purchase of 1,000 units.