Active production — BOM-fit note
The TC647BEOA: It is a brushless DC (BLDC) fan speed controller with a parallel interface, operating from a 3V to 5.5V supply rail — the same range as a standard 3.3V or 5V logic bus, so no extra voltage regulator is needed for the controller itself.
Temperature grade and output drive
The output is a pre-driver low-side configuration, meaning it drives external N-channel MOSFETs or NPN transistors rather than switching the motor current directly — the external pass transistors handle the fan's full load current, while the TC647BEOA manages the gate/base drive and speed-control loop.
Supplied in Tube packaging (the listed package format), which is typical for prototype quantities and low-volume production; for higher volumes, verify reel availability with your Microchip channel partner.
Compliance and sourcing
The TC647BEOA is ROHS3 Compliant per Microchip's declaration — no RoHS exemption conflicts for EU-market builds. No stock-holding claim — availability verified per inquiry.