描述 Description

The LV8811G 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.

特性 Features

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

應(yīng)用 Application

? Fan motor units
? Refrigerator
? PC

簡介

LV8811G屬于開發(fā)板套件編程器的評估演示板及套件。由制造生產(chǎn)的LV8811G評估和演示板及套件該系列產(chǎn)品提供了一種方便的方法，在經(jīng)過驗(yàn)證的實(shí)施環(huán)境中評估某些重點(diǎn)器件的性能或特性。評估方法通常有完善的文檔說明，并且視乎具體情況由評估軟件提供支持。產(chǎn)品通常由印刷電路板組成，板上已裝有重點(diǎn)器件以及必要或有用的支持元器件，另外也可能包括其他組件，例如電纜或電源。對于數(shù)量特別多或類別獨(dú)特的器件類別(如 ADC、DAC 和開關(guān)模式電源)，評估平臺可組合為一個(gè)單獨(dú)的產(chǎn)品系列。