LV8121V: Three-Phase Brushless Motor Driver

The LV8121V is a three-phase brushless motor driver that uses a PWM drive technique. The motor speed is controlled by changing the PWM duty that based on an analog voltage input. This motor driver includes an automatic return constraint protection circuit and is optimal for driving fan motors.

Features
  • PWM control based on an analog voltage input (the CTL voltage), synchronous rectification
  • One Hall-effect sensor FG output
  • Automatic return constraint protection circuit (ON/OFF=1/15)
  • Start/Stop switching circuit, Forward/Reverse switching circuit
  • Current limiter circuit, Low-voltage shutdown protection circuit, Thermal shutdown protection circuit
Applications
  • Fan for Consumer electronics
  • Fan for White goods
  • Pump
  • Office equipment
End Products
  • Air Purifier
  • Printer
  • Hot water heaters
  • Cash machine
Software (1)
Document TitleDocument ID/SizeRevisionRevision Date
LV8121VGEVK Software (Zip Format)LV8121VGEVK_SOFTWARE (1392kB)1130
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
Three-Phase Brushless Motor DriverENA2135/D (223.0kB)0
Package Drawings (1)
Document TitleDocument ID/SizeRevision
SSOP44K (275mil) Exposed Pad940AF (67.8kB)A
Application Notes (1)
Document TitleDocument ID/SizeRevisionRevision Date
LV8121V Application NoteANDLV8121V/D (991kB)1Feb, 2014
Evaluation Board Documents (4)
Document TitleDocument ID/SizeRevisionRevision Date
LV8121VGEVK Bill of Materials ROHS CompliantLV8121VGEVK_BOM_ROHS (117kB)1
LV8121VGEVK Gerber Layout Files (Zip Format)LV8121VGEVK_GERBER (1307kB)0
LV8121VGEVK SchematicLV8121VGEVK_SCHEMATIC (82kB)0
LV8121VGEVK Test ProcedureLV8121VGEVK_TEST_PROCEDURE (748kB)0
Evaluation/Development Tool Information
ProductStatusComplianceShort Description
LV8121VGEVKActivePb-freeThree-Phase Brushless Motor Driver Evaluation Kit
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
LV8121V-TLM-HActivePb-free Halide freeSSOP-44K EP940AF3Tape and Reel2000$2.367
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
LV8121V-TLM-H38358353.5DCExternal ResistorOver-Current
Three-Phase Brushless Motor Driver (223.0kB) LV8121V
LV8121VGEVK SOFTWARE - 1392 KB LV8121VGEVK
LV8121V Application Note LV8121V
LV8121VGEVK BOM ROHS - 117 KB LV8121VGEVK
LV8121VGEVK GERBER - 1307 KB LV8121VGEVK
LV8121VGEVK SCHEMATIC - 82 KB LV8121VGEVK
LV8121VGEVK TEST PROCEDURE - 748 KB LV8121VGEVK
SSOP44K (275mil) Exposed Pad LA4425PV