LV8814J: Motor Driver, 3-Phase, PWM, Full-Wave, BLDC

The LV8814J is a 3-phase BLDC motor driver which is controlled by single Hall sensor. A 180 degrees sinusoidal driving method is adopted and the IC can control motor with low vibration and the low noise. In addition, lead-angle adjustment is possible by an external pin. Lead-angle value and lead-angle slant can be adjusted independently. Thus, the device can be driven by high efficiency and low noise with various motors. The power element to drive a motor is built-in and contributes to high efficiency by low on resistance (0.5 Ω). The Hall sensor bias driver is equipped, and a Hall IC is supported as well. As a method of the rotary speed control of the motor, direct-PWM pulse input or DC-voltage input can be chosen.

Features
  • 3-phase full wave (sinusoidal) drive
  • Any practical combination of slot and pole can be handled. (e.g. 3S3P, 3S4P, 6S4P, 6S8P, 12S8P, 9S12P and so on)
  • built-in power FETs (P-MOS/N-MOS)
  • Speed control function by direct PWM or DC voltage input
  • Minimum input PWM duty cycle can be configured by voltage input
  • Soft start-up function and soft shutdown function
  • Soft PWM duty cycle transitions
  • Built-in current limit circuit and thermal protection circuit
  • Regulated voltage output pin for Hall sensor bias
  • Built-in locked rotor protection and auto recovery circuit
  • FG signal output
  • Dynamic lead angle adjustment with respect to rotational speed
  • Lead-angle control parameters can be configured by voltage inputs
Benefits
  • Static sound, low vibration, high efficiency
  • Versatility
  • Part mark reduction. The implementation area small
  • Speed control is possible by two methods.(selectable)
  • It is contributed to movement stability
  • It is contributed to static sound characteristics at the time of the start
  • Static sound characteristics at the time of the speed abnormality are good
  • Safe use is provided by a protection function
  • A PCB design is easy
  • Safe use is provided by a protection function
  • A measurement of the number of revolutions is possible
  • High efficiency
  • High efficiency
Applications
  • Fan motor units
End Products
  • Refrigerator
  • PC
Application Notes (1)
Document TitleDocument ID/SizeRevisionRevision Date
LV8811G, LV8813G, LV8814J Tuning GuideAND9469/D (479kB)0Jul, 2016
Package Drawings (1)
Document TitleDocument ID/SizeRevision
SSOP20 (225mil)565AN (57.5kB)A
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
Motor Driver, 3-Phase, PWM, Full-Wave, BLDCLV8811G_LV8813G_LV8814J/D (2100kB)0Jun, 2016
Evaluation Board Documents (4)
Document TitleDocument ID/SizeRevisionRevision Date
LV8814JGEVB Bill of Materials ROHS CompliantLV8814JGEVB_BOM_ROHS.pdf (31kB)0
LV8814JGEVB Gerber Layout Files (Zip Format)LV8814JGEVB_GERBERS.zip (241kB)0
LV8814JGEVB SchematicLV8814JGEVB_SCHEMATIC.pdf (117kB)0
LV8814JGEVB User GuideLV8814JGEVB_USER_GUIDE.pdf (739kB)0
Evaluation/Development Tool Information
ProductStatusComplianceShort Description
LV8814JGEVBActivePb-freeMotor Driver, 3-Phase, PWM, Full-Wave, BLDC Evaluation Board
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
LV8814J-AHActivePb-free Halide freeSSOP-20565AN3Tape and Reel2000$1.0466
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
LV8814J-AH33.6163.6162DC PWMExternal ResistorYesThermal UVLO
Motor Driver, 3-Phase, PWM, Full-Wave, BLDC (2100kB) LV8814J
LV8811G, LV8813G, LV8814J Tuning Guide LV8814J
LV8814JGEVB BOM ROHS LV8814JGEVB
LV8814JGEVB GERBERS LV8814JGEVB
LV8814JGEVB SCHEMATIC LV8814JGEVB
LV8814JGEVB USER GUIDE LV8814JGEVB
SSOP20 (225mil) LV5609V