Datasheet Melexis MLX90412

The hummingbird’s beating wings flap at extremely high
frequencies, typically around 50 times per second. This allows it
to fly at speeds exceeding 15 m/s, to fly backwards or to seemingly
be suspended in the air in perfect balance. What better animal to
reflect the motor/control driver and actuator capacities? MLX90412-K SINGLE-COIL
FAN & PUMP DRIVER
LOW NOISE FAN & PUMP DRIVER FOR
SMART APPLICATIONS UP TO 35 W
MLX90412-K
The MLX90412-K operates over a supply voltage range from 3.5 V to 32 V, and is robust up to
40 V, making it suitable for any fan, blower or pump applications operating from 12 V and 24 V power
supplies, as well as portable applications with up to seven Li-ion cells ~29 V. With a current limit up
to 2.2A, the MLX90412 can drive applications up 35 W in a safe way without risk of overheating the
device or the motor coil. The closed-loop speed control and adaptive low noise commutation enable
industry standard efficiency with lowest acoustic noise. Additionally the closed loop speed control
reduces the design effort to adjust existing fan-and pump-tooling to meet target operating points
with high accuracy, and improve the response time to new end-customer requests. KEY FEATURES
k All-in-one fan driver, including high-sensitivity
Hall-effect sensor k Up to 2.2 A motor current
k Adaptive commutuation for best in class efficiency
over the full speed range for any fan design k Commutation options
• Maximum torque
• Very low acoustic noise k PWM control input …