LB11970RV-W-AH Integrated Circuits (ICs)

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The LB11970RV-W-AH is a high-power motor driver from Rohm. It is classified under PMIC - Motor Drivers, Controllers, and is specifically designed for the use in general driving applications. This high-power motor driver can offer a wide range of high performance driving solutions for various applications and is capable of controlling large motors with its improved output current, low on resistance and noise, and long-term reliability.

The LB11970RV-W-AH is a three-phase or four-phase motor driver that operates at a supply voltage of between 12 and 55 volts. It features three low-side drivers and one high-side driver. The low-side drivers can control up to five outputs in one unit and the high-side drivers can control up to five outputs. The supply voltage is applied externally, allowing for a wide operating voltage range. The maximum output current for this driver is up to 2.6A, making it suitable for a variety of applications.

The motor driver has several features to optimize system performance, including an over-temperature protection circuit and current limit circuit. It also features fault diagnosis circuitry, which provides visual and audible feedback if any faults occur. The fault diagnosis circuit can detect over-current, over-temperature, and supply voltage failure, as well as any open-circuit or short-circuit conditions. If a fault is detected, an alarm is activated and the corresponding output is disabled.

The motor driver operates using a pulse width modulation (PWM) signal. PWM signals modulate the amount of on time for each phase of the motor. By applying a fixed on-time for each phase, the current supplied to the motor can be adjusted, allowing for speed control and torque control. The PWM frequency is adjustable and can be set to operate from 4kHz to 20kHz, allowing for customizable performance.

The LB11970RV-W-AH is a reliable and robust high-power motor driver suitable for a wide range of applications. Its wide operating range and adjustable PWM frequency make it an ideal choice for controlling large motors. The fault diagnosis circuits provide peace of mind, protecting against any unexpected malfunctions or failures. It is sure to provide reliable performance in many motor driving applications.

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