MLX90285

MLX90285 24V Low Noise Two-Coil Fan Driver Features and Benefits 1-chip solution (Hall element + Output Drivers) Soft Switching for low noise Active Slope Control without external components automatically adapts slope to rotation speed Two-Stage Thermal Protection Locked Rotor Protection and auto-restart Tachometer open drain output (MLX90285-FG) Alarm open drain output (MLX90285-RD) Available in 4-pin through-hole VK (“No-VDD” design) and surface mount SOIC8, all “Green” Compliant package Pin-to-pin compatible with US90A & US91A Application Examples 24V Two-Coil Design Cooling Fans Office Automated Equipment (Printers) Brown-Goods (DVD player) Home Appliances (Rice cooker) Automotive Climate Control Fan Car Audio Cooling Fan Ordering Code Product Code MLX90285 MLX90285 MLX90285 MLX90285 Legend: Temperature Code: Package Code: Option Code: Packing Form: Temperature Code L L L L Package Code VK VK DC DC Option Code ABA-000 AAA-000 ABA-000 AAA-000 Packing Form Code BU BU RE RE L for Temperature Range -40°C to 150°C VK for Plastic Single in Line DC for SOIC150 AAA-000 for Frequency Generation, ABA-000 for Rotation Detection BU for Bulk, RE for Reel (live bug) Ordering example: MLX90285LVK-ABA-000-BU 1 Functional Diagram OUT1 OUT2 2 General Description The MLX90285 is a one-chip solution for driving two-coil brushless DC cooling fans. Slope Control Power Output Driver HV Clamp No-VDD system Voltage Regulator Power Output Driver HV Clamp Slope Control Crossover Detec...