Single-Coil Fan & Pump Driver

· Operates over a supply voltage range from 3.5 V to 32 V, robust up to 40 V.

· Suitable for 12 V and 24 V power supplies, portable applications with up to seven Li-ion cells ~29 V.

· Current limit up to 2.2A, drives applications up to 35 W safely.

· Closed-loop speed control and adaptive low noise commutation for industry standard efficiency.

· Reduces design effort to adjust existing fan- and pump-tooling for high accuracy.

· Improves response time to new end-customer requests.

Features

· All-in-one fan driver with high-sensitivity Hall-effect sensor.

· Up to 2.2 A motor current.

· Adaptive commutation for best efficiency over full speed range.

· Commutation options: Maximum torque, very low acoustic noise.

· PWM control input, standby mode, open loop / closed loop speed control (+/-1.5%).

· Protections and diagnostics: Locked Rotor Protection, Temperature Shutdown, Over Voltage protection, Short circuit protection, Current limit, FG/RD open drain diagnostics output.

· Certifications: UL/VDE/CE ready, JEDEC qualified package.

· I2C programming for fast prototyping and end-of-line programming.

· Exposed pad DFN10 3x3 with wettable flanks, small footprint (9mm2), minimal PCB size, <1mm height.

Applications

· Suitable for any fan, blower, or pump applications.

· Ideal for portable applications with up to seven Li-ion cells.