LV8747TA-2H

Step Resolution:	1, 1/2, 1/4
Supplier Device Package:	64-TQFP (7x7)
Package / Case:	64-TQFP Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-20°C ~ 85°C (TA)
Voltage - Load:	10 V ~ 35 V
Voltage - Supply:	0 V ~ 5 V
Current - Output:	500mA, 1.5A
Applications:	General Purpose
Series:	--
Technology:	Bi-CMOS
Interface:	Parallel
Output Configuration:	Half Bridge (8)
Function:	Driver - Fully Integrated, Control and Power Stage
Motor Type - AC, DC:	--
Motor Type - Stepper:	Bipolar
Part Status:	Obsolete
Packaging:	Tray

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PMIC - Motor Drivers, Controllers

LV8747TA-2H is a single-chip motor shield with a six-phase brushless dc driver suitable for various motor-related applications. This motor driver supports uni-directional control of the BEMF (back-electromotive force) control algorithm, and offers several integrated features that help increase system efficiency and ease system design in motor-related applications.The LV8747TA-2H integrates current-sense amplifiers, overcurrent comparators, PWM constant-frequency high-side drivers, and other amplifiers that provide low-pass filters for smooth operation. The BEMF sensing circuit uses an analog comparator with a hysteresis loop to provide high-level noise immunity, and thus enabling smooth control of the motor. The overcurrent rate is adjustable using shoot-through pulse-width modulation. The device also supports both open-drain and totem-pole output types.The motor driver\'s input voltage range is 4-40VDC, with peak output current of 10A. The device offers several commendable features in motor control applications, including fast sleeping of motor control, precise current-sense detection control, bidirectional six-phase motor control, adjustable overcurrent control, and overcurrent protection.The LV8747TA-2H can be used in a variety of applications including electric bicycles, robot arms, and general purpose motors. Additionally, the device can also be used in LED light applications and power-driven equipment.Amongst its integrated features, its BEMF sensing circuit provides precise current-sense detection control. This allows for greater control of the motor by detecting and measuring the back-electromotive force that makes up the magnetic field created during motor operation. The overcurrent rate is adjustable, providing higher system safety.The fast sleeping allows a motor to be quickly shut down and resumed from a low-power state. Its bidirectional six-phase motor control ensures smooth operation in alternating or bidirectional motions. Its open-drain and totem-pole output types add to the flexibility of this device in motor applications.The LV8747TA-2H is an ideal motor driver for applications requiring a single-chip motor shield that integrates several features to increase system efficiency. Its current-sense amplifiers and BEMF control algorithm provide greater accuracy and higher efficiency, while its adjustable overcurrent protection and fast sleeping further guarantee system safety. Depending on the application, the device can be used in a unidirectional, bidirectional, or alternating motorcycle operation. The LV8747TA-2H is a convenient, practical, and cost-effective motor driver for a wide range of applications.

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