Highest power GaN in Plastic transistors target radar and communications systems
Scaling to peak pulse power levels of 100W – the highest among competing components in this product category – MACOM’s GaN in Plastic transistors defy the power, size and weight limitations of competing ceramic-packaged offerings to enable a new generation of high performance, ultra compact military and civilian radar systems. As a result, customers can use these products to provide new capabilities and take advantage of the total system cost reductions associated with size, weight, and cooling requirements.
Packaged in miniature 3 x 6 mm dual-flat no leads (DFN) and standard small outline transistor (SOT-89) packages, MACOM’s GaN in Plastic transistors operate at 50 V drain bias and offer power density and performance benefits, higher efficiency, and smaller impedance matching circuits due to improved device parasitics. The high voltage operation also benefits overall system design with smaller energy storage capacitors and lower current draw. The power transistors leverage sophisticated thermal management techniques to ensure excellent reliability in surface mount applications. The 90 W power transistor demonstrates less than 115⁰C junction temperature (80⁰C base-plate) for a pulsed power output of 93 W, using a 1mS pulse and 10% duty cycle on standard Rogers board material. The devices can operate at even higher temperatures, as the calculated mean-time-to-failure (MTTF) at 200⁰C is roughly 600 years.
The first entries in MACOM’s GaN in Plastic power transistor product portfolio include 90 W, 50 W and 15 W transistors, all of which are available in standard 3 x 6 mm DFN packaging. The devices can be mounted on PCBs via ground/thermal arrays. Internal stress buffers allow the devices to be reliably operated at up to 200⁰C channel temperature. The GaN in Plastic series also includes a 5 W device in an even smaller SOT-89 package, measuring 2.5 x 4.5 mm. All of these transistors are capable of operating at frequencies up to at least 3.5 GHz.
GaN in Plastic test fixtures are available upon request.
More information about MACOM’s GaN portfolio at www.macomtech.com/gan
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