●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 | | Benefits
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● 3-phase full wave (sinusoidal) drive
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● Static sound, low vibration, high efficiency
● Any practical combination of slot and pole can be handled. (e.g. 3S3P, 3S4P, 6S4P, 6S8P, 12S8P, 9S12P and so on)
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● Versatility
● built-in power FETs (P-MOS/N-MOS)
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● Part mark reduction. The implementation area small
● Speed control function by direct PWM or DC voltage input
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● Speed control is possible by two methods.(selectable)
● Minimum input PWM duty cycle can be configured by voltage input
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● It is contributed to movement stability
● Soft start-up function and soft shutdown function
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● It is contributed to static sound characteristics at the time of the start
● Soft PWM duty cycle transitions
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● Static sound characteristics at the time of the speed abnormality are good
● Built-in current limit circuit and thermal protection circuit
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● Safe use is provided by a protection function
● Regulated voltage output pin for Hall sensor bias
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● A PCB design is easy
● Built-in locked rotor protection and auto recovery circuit
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● Safe use is provided by a protection function
● FG signal output
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● A measurement of the number of revolutions is possible
● Dynamic lead angle adjustment with respect to rotational speed
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● High efficiency
● Lead-angle control parameters can be configured by voltage inputs
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● High efficiency
Part 3D Model
