Qorvo has introduced a new intelligent power control solution that significantly reduces energy consumption, bulk, weight, and noise in smart home appliances, AC-powered fans, and compressors. This new, mixed-signal System in Package (SiP) product can reduce bill of materials by as much as 35 percent, even as it enhances performance, reliability and energy efficiency in brushless DC (BLDC) motor and permanent magnet synchronous motor (PMSM) control applications.
The Qorvo PAC5556 Power Application Controller (PAC) delivers extreme power density in a slim, compact 52-PIN 10x10 QFN package. It features a 150 MHz Arm Cortex-M4F digital high-performance processor with 128 kB FLASH and integrates a 600V N-channel DC/DC Buck Controller and signal conditioning components. This greatly reduces the bill of materials in high-voltage systems that do not require isolation.
The integrated power management supplies all necessary voltage rails for the system, including the 12V or 15V gate driver supply for metal-oxide-semiconductor field-effect transistors (MOSFETs) or insulated gate bipolar transistors (IGBTs). An additional, high-efficiency 5V DC/DC Buck Converter provides power for other system peripherals.
BLDC motors are seeing widespread adoption, thanks to their maintenance-free operation, longer life span, power efficiency, and quieter operation. Next-generation systems that are switching from brushed DC motors to BLDCs include smart home appliances, HVAC systems, automobiles, aerospace, defense, and medical devices.
The PAC5556 is available now to customers and offers these specifications:
MCU | - 150 MHz Arm® Cortex®-M4F
- 128 kB FLASH, 32 kB SRAM with ECC
- 12b 2.5MSPS SAR ADC with trigger and sequence engine
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| I/O | - 16 3.3V IO
- 10 5V Open-drain IO
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| Power Management | - 600 V Buck DC/DC Controller with external NCH FET
- 5 V / 200 mA system supply
- LDOs for MCU Core, IO, Analog
- Low-power hibernate mode (8 µA)
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| Gate Drivers | - 3 High-side 600 V gate drivers with 250 mA / 500 mA current
- 3 Low-side 20 V / 1 A gate drivers
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| Physical | - 10 x 10 mm, 52-pin QFN
- TA = - 40 °C to 125 °C
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Qorvo is showcasing its programmable power management solutions on August 2, 2019, at the Motor Drive and Control Technology Seminar in Shenzhen, China.
