LA6581MC: Single-Phase Full-Wave BTL Fan Motor Driver

The LA6581MC is a low-saturation BTL output linear driving motor driver for single-phase bipolar fan motors. It features quite, low power, high efficiency drive that suppresses reactive current. It is optimal for use in applications that require miniaturization and low noise, such as CPU cooling fan motors and 5 to 12V electronic game products.

Features
  • Single-phase full-wave linear drive with BTL output (gain resistance 500Ω to 284kΩ, 55dB) : Suitable for the equipment requiring silent operation, such as game equipment, CPU cooler, etc. because of its freedom from switching noise.
  • Low-voltage operation possible, with wide operable voltage range (3 to 16V)
  • Low saturation output (Upper + lower saturation voltage : VOsat (total) = 0.3V typ, IO = 100mA) : High coil efficiency with low current drain. IC itself does not generate much heat.
  • High impedance of Hall input pin
  • FG output (rotation speed detection output : open collector output)
  • Heat protection circuit : When the large current flows because of output short-circuit, raising the IC chip temperature above 180°C, the heat protection circuit suppresses the drive current, preventing IC burn and breakdown.
Applications
  • CPU cooling fan motors
End Products
  • 5 to 12V electronic game products
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
Single-phase Full-wave BTL Fan Motor Driver ICENA2028/D (59.0kB)0
Package Drawings (1)
Document TitleDocument ID/SizeRevision
SOIC-8 Narrow Body751-07 (62.6kB)AK
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
LA6581MC-BHActivePb-free Halide freeSOIC-8751-071Tape and Reel2500$0.4704
LA6581MC-DHLast ShipmentsPb-free Halide freeSOIC-8751-073Tape and Reel2500
Specifications
ProductPhaseVM Min (V)VM Max (V)VCC Min (V)VCC Max (V)IO Max (A)IO Peak Max (A)Control TypeCurrent SenseRegulator OutputFault Detection
LA6581MC-BH12.2162.2160.40.5DCNoneThermal
Single-phase Full-wave BTL Fan Motor Driver IC (59.0kB) LA6581MC
SOIC-8 Narrow Body CM1216