LB11685AV-MPB-H

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LB11685AV-MPB-H is a motor driver, controller, and power management integrated circuit (PMIC) device produced by ROHM semiconductor. This product is applicable in a variety of industrial applications, including home appliances, vending machines, and factory automation.

This device is capable of providing efficient power control and voltage regulation of brush and brushless DC motors. It comes in a miniature PQFN16 and 16L package, making it ideal for limited space applications. In terms of features, the LB11685AV-MPB-H contains an embedded power module, current sense amplifier with overcurrent protection, PWM control timer, and comparator for loop control.

The controller module operates using a PWM current-loop control method and can provide accurate current sensing and control without the need for external components. The PWM current-loop control method monitors motor current using a sense resistor (RDS) and compares it with the reference value. It then calculates the amount of pulse with modulation (PWM) required to ensure that the actual current is within the reference value.

The device also comes with an embedded low-noise DC-DC converter with an operating frequency of up to 500 kHz. This module provides efficient power management, while the internal current mirror drives the power supply voltage to ensure optimal operation of the device.

In terms of safety, the LB11685AV-MPB-H provides several fault protection functions to guard against any potential damage or malfunction. This includes things like overcurrent protection, short-circuit protection, over-temperature protection, brown-out protection, and motor stall protection.

In summary, the LB11685AV-MPB-H is an ideal motor driver, controller, and power management integrated circuit that are suitable for a wide range of industrial applications. Its features, such as its PWM current-loop control system, embedded low-noise DC-DC converter, and fault protection functions, make this device a reliable and efficient solution for powering motor systems.

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