Congratulations to thefreeman for his first commercially available Boost Driver

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Emisar D3AA driver hardware information

The D3AA was just released so I thought I would give a bit of information about the driver used in it since I designed it. Specifications : Constant current boost driver with 0.7-5.5V input voltage range, supporting low voltage AA cells and Li-ion 14500 cells. 2A~9V output with li-ion, about 19.5W with 3x519A. ~0.6A~9V output with NiMH (Eneloop). 5.5A input limit. 94%/93% peak efficiency/min efficiency at max output on Li-ion, 90%/85% on NiMH. 30kHz minimum switching frequency to avoid audibl…