LB11852FV: Single-Phase Full-Wave Fan Motor Pre-Driver with Speed Control Function

The LB11852FV is a single-phase bipolar driving motor pre-driver with a speed control function based on speed feedback. With a small number of external parts, a highly efficient and very quiet variable-speed drive fan motor with low power consumption and high rotational accuracy can be implemented. The LB11852FV, integrated in a miniature package, is best suited for driving small fan motors requiring speed control.

Features
  • Single-phase full-wave driving pre-driver
  • Speed control circuit incorporated
  • Variable speed control is possible with external PWM input or analog voltage input
  • Soft start circuit incorporated
  • Minimum speed setting pin
  • Current limiting circuit incorporated
  • Reactive current cut circuit incorporated
  • Automatic resetting type constraint circuit incorporated
  • FG (rotational speed detection) output
Applications
  • Small Fan Motor Drive
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
Single-phase Full-wave Fan Motor Pre-driver IC with Speed Control FunctionENA1112/D (241.0kB)1
Package Drawings (1)
Document TitleDocument ID/SizeRevision
SSOP20J (225mil)565AP (58.3kB)A
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
LB11852FV-MPB-ELast ShipmentsPb-freeSSOP-20J565AP3Fan-Fold90
LB11852FV-MPB-HLast ShipmentsPb-free Halide freeSSOP-20J565AP3Fan-Fold90
LB11852FV-TLM-EActive, Not RecPb-freeSSOP-20J565AP3Tape and Reel2000$0.8576
LB11852FV-TLM-HActivePb-free Halide freeSSOP-20J565AP3Tape and Reel2000$0.8576
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
LB11852FV-TLM-H15.5160.02DCExternal ResistorYesOver-Current
Single-phase Full-wave Fan Motor Pre-driver IC with Speed Control Function (241.0kB) LB11852FV
SSOP20J (225mil) LB11868V