LB11967V: Single-Phase Variable Speed Fan Motor Pre-Driver

The LB11967V is a single-phase bipolar variable speed fan motor pre-driver that works with an external PWM signal. A highly efficient, quiet and low power consumption motor driver circuit, with a large variable speed, can be implemented by adding a small number of external components. This device is optimal for driving large scale fan motors (with large air volume and large current) such as those used in servers and consumer products.

Features
  • Pre-driver for single-phase full-wave drive
  • External PWM input enabling variable speed control
  • Compatible with 12V, 24V, and 48V power supplies
  • Current limiter circuit incorporated
  • Reactive current cut circuit incorporated
  • Minimum speed setting pin
  • Constant-voltage output pin for Hall bias
  • Lock protection and automatic reset functions incorporated
  • FG(Rotation speed detection) and RD (Lock detection) output
Applications
  • Computing & Peripherals
  • Consumer
End Products
  • Server
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
Single-Phase Full-Wave Pre-Driver for Variable Speed Fan MotorLB11967V/D (247kB)1Nov, 2016
Package Drawings (1)
Document TitleDocument ID/SizeRevision
SSOP20 (225mil)565AN (57.5kB)A
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
LB11967V-MPB-ELifetimePb-freeSSOP-20565AN3Fan-Fold70$0.5696
LB11967V-MPB-HLast ShipmentsPb-free Halide freeSSOP-20565AN3Fan-Fold70
LB11967V-TLM-EActive, Not RecPb-freeSSOP-20565AN3Tape and Reel2000$0.5696
LB11967V-TLM-HActivePb-free Halide freeSSOP-20565AN3Tape and Reel2000$0.5333
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
LB11967V-TLM-H16166160.05PWMExternal ResistorOver-Current
Single-Phase Full-Wave Pre-Driver for Variable Speed Fan Motor (247kB) LB11967V
SSOP20 (225mil) LV5609V