LA6681MC: Single-Phase Full-Wave Fan Motor Driver

The LA6681MC drives the single-phase bipolar fan motor, through low-saturation BTL output linear drive, silently and at high efficiency with suppressed reactive power while saving power. This product is the most suitable for the CPU cooler fan motor operating on 5V power for notebook PC, which is required to be compactness and low noise.

Features
  • Single-phase full-wave linear drive by BTL output.
  • Operable at low voltage and over a wide operation voltage range (2.0 to 7.0V)
  • Low saturation output (Upper + lower saturation voltages: VOsat (total) = 0.32V typ, IO = 400mA)
  • FG output (Rotation detection output: Open collector output)
  • High impedance of Hall input pin
  • Heat protection circuit
  • Small package with high heat capacity
Applications
  • CPU cooler fan motor operating on 5V power
End Products
  • Notebook PC
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
Single-phase Full-wave Fan Motor Driver ICENA2074/D (281.0kB)0
Package Drawings (1)
Document TitleDocument ID/SizeRevision
SOIC-8 Narrow Body751-07 (62.6kB)AK
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
LA6681MC-AHActivePb-free Halide freeSOIC-8751-073Tape and Reel2500$0.68
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
LA6681MC-AH127271DCNoneThermal
Single-phase Full-wave Fan Motor Driver IC (281.0kB) LA6681MC
SOIC-8 Narrow Body CM1216