LB11922: Three-Phase Brushless Motor Driver

The LB11922 is a pre-driver IC designed for constantspeed control of 3-phase brushless motors. It can be used to implement a motor drive circuit with the desired output capacity (voltage, current) by using discrete transistors for the output stage. It implements direct PWM drive for minimal power loss.

Features
  • Direct PWM drive output
  • Speed discriminator + PLL speed control circuit
  • Speed lock detection output
  • Built-in crystal oscillator circuit
  • Forward/reverse switching circuit
  • Braking circuit (short braking)
  • Full complement of on-chip protection circuits, including lock protection, current limiter, and thermal shutdown protection circuits.
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
Three-Phase Brushless Motor Driver ICEN7497/D (174.0kB)0
Package Drawings (1)
Document TitleDocument ID/SizeRevision
SSOP36 (275mil)565AU (60.3kB)A
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
LB11922-TLM-EActivePb-freeSSOP-36565AU3Tape and Reel2000$1.7066
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
LB11922-TLM-E34.470.03ClockExternal ResistorUVLO
Three-Phase Brushless Motor Driver IC (174.0kB) LB11922
SSOP36 (275mil) LB11922