BLDC pre-driver for 12V fan and pump designs
The ROHM BD69730FV-GE2 is a brushless DC motor pre-driver that sits between a microcontroller and external N-channel power MOSFETs. It generates the gate-drive signals for a three-phase BLDC motor, with four half-bridge outputs available for flexible commutation patterns. Supply range spans 4.3V to 17V, so it runs comfortably off a 12V rail common in PC, PDA, and small appliance fans and pumps. The 8 mA output current drives the gate capacitance of small- to medium-power MOSFETs without an external buffer stage.
What the 4.3V–17V supply means for your BOM
The minimum supply of 4.3V is low enough for a 5V regulated rail, but the 17V ceiling means you cannot run it off an unregulated 24V bus without a preregulator. If your system already has a 12V supply for the fan or pump, this IC drops straight in without an extra voltage rail. Operating temperature from -40°C to 105°C covers indoor electronics and outdoor telecom cabinets. The 16-SSOP-B package (4.40 mm width) is a fine-pitch surface-mount footprint.