LB11921T-MPB-E

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LB11921T-MPB-E, is a motor driver IC, which is widely applied for controlling small spindle motors for HDD, ODD and other applications. It is a low-power, low-voltage driver IC, and can be used for both 3-phase and single-phase motors. The LB11921T-MPB-E can drive the motor at up to 5A continuous current, and offers up to 12V output voltage. The IC is designed to provide accurate control of the motor, with a variety of sensing and protection functions.

Overview

The LB11921T-MPB-E is a low-power, low-voltage motor driver IC, capable of driving 3-phase and single-phase motors. The IC offers a range of features to ensure precise and accurate control of the motor, as well as a number of protection functions to protect the motor and IC itself from damage. The driver IC is powered by a single-voltage supply of up to 12V, with a supply current of 1.5A. The IC provides a single PWM output for controlling the motor’s speed, and a single mode bit for switching between 3-phase and single-phase mode. In addition, the driver IC provides an internal clock for synchronizing the motor’s rotation, as well as current limiting and thermal protection functions.

Features

The LB11921T-MPB-E features a range of features which enables precise and accurate control of the motor. These features include:

• A single-voltage power supply up to 12V, with a supply current of 1.5A.
• A single PWM output for controlling the motor’s speed.
• A single mode bit for switching between 3-phase and single-phase mode.
• An internal clock for synchronizing the motor’s rotation.
• Current limiting and thermal protection functions.

Applications

The LB11921T-MPB-E is a widely used motor driver IC, and is applied for controlling small spindle motors for HDD, ODD and other applications. The IC is designed to provide accurate control of the motor, with a variety of sensing and protection functions. The driver IC can be used for 3-phase, single-phase and open loop applications, and offers up to 5A continuous current and 12V output voltage. The driver IC is also suitable for applications where a low-power, low-voltage driver is needed.

Working Principle

The LB11921T-MPB-E driver IC works on the principle of pulse-width modulation (PWM). The IC provides an internal clock and PWM output, which generates the required pulse width to control the motor’s speed. The driver IC also has a mode bit, which can be used to switch between 3-phase and single-phase mode. Furthermore, the driver IC has current and thermal protection functions, which protect the motor and IC from damage.

Conclusion

The LB11921T-MPB-E motor driver IC is a low-power, low-voltage driver IC, which can be used for controlling small spindle motors for HDD, ODD and other applications. The IC offers a range of features, including an internal clock, current limiting and thermal protection functions, as well as a single PWM output and mode bit for switching between 3-phase and single-phase mode. With its low-power, low-voltage capabilities, the LB11921T-MPB-E is an ideal solution for applications where precise and accurate control of the motor is required.

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