Energy Provide Reference Design Utilizing GaN FETs

By leveraging GaN FETs and the MIC2132, this reference design presents a scalable, environment friendly, and easy-to-implement resolution for contemporary high-performance energy purposes.

Gallium Nitride Subject-Impact Transistors (GaN FETs) are revolutionizing energy provide design by providing excessive effectivity and density in comparison with conventional silicon MOSFETs. This reference design demonstrates how GaN FETs, when paired with the superior MIC2132 analog controller, allow the event of high-performance energy provides. Appropriate for purposes starting from telecom to industrial methods, this design simplifies implementation whereas attaining superior thermal efficiency and energy density.

The MIC2132 controller is a crucial element, offering a relentless on-time, dual-phase synchronous buck management mechanism. Its adaptive ON-time structure helps stackable operations of as much as 8 phases, enabling scalable options for purposes requiring as much as 50A of output present. The controller’s broad enter voltage vary of 4.5V to 75V and programmable output voltage (0.6V to 28V) make it appropriate for various energy provide wants. With a excessive accuracy of ±1% at normal situations and ±0.5% over prolonged temperature ranges (-40°C to 105°C), the MIC2132 ensures exact output regulation, crucial for delicate purposes.

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By Microchip Know-how makes use of the MIC2132’s Hyper Velocity Management® structure, which delivers ultra-fast transient responses beneath medium to heavy hundreds. The hysteretic management loop, inherent to the MIC2132, simplifies design whereas offering distinctive efficiency. Options like exterior programmable soft-start, distant sense amplifier for correct output management, and adaptive voltage positioning (AVP) additional improve the system’s reliability and suppleness.

To speed up your growth, this reference design consists of complete sources resembling design recordsdata, schematics, and structure recordsdata. These supplies allow simple replication or modification of the facility provide challenge. Moreover, the MIC2132 GaNFET Analysis Board (EV78U64A) supplies a full {hardware} demonstration of the MIC2132 driving GaN FETs. The board operates over an enter vary of 36V to 60V and helps output a great deal of as much as 20A, showcasing the controller’s strong capabilities in real-world situations.

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The analysis board is engineered for testing beneath normal laboratory environments, with built-in safety options resembling under-voltage lockout, hiccup mode short-circuit safety, and thermal shutdown. These safeguards guarantee reliability throughout growth and operational testing, supplied the board is used inside its specified parameters. Key options of this reference design embrace programmable switching frequencies from 100 kHz to 1 MHz per part, correct 180° phasing of outputs, and a compact 5mm x 5mm VQFN package deal. Collectively, these attributes make the MIC2132 a wonderful alternative for compact, environment friendly, and extremely dependable energy provides.

Microchip has examined this reference design. It comes with a invoice of supplies (BOM), schematics, meeting drawing, printed circuit board (PCB) structure, and extra. The corporate’s web site has further information in regards to the reference design. To learn extra about this reference design, click on right here.