L9906

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The L9906 is a harsh-environment linear motor driver and controller PMIC (Power Management IC) from STMicroelectronics. The PMIC offers a wide range of input and output voltages to meet the needs of harsh-environment motor control applications. It also provides a robust power-saving feature, allowing it to be used in temperature- and/or humidity-sensitive applications.

The L9906 is designed specifically for applications in which linear motors are used for motion control in high-temperature and/or high-humidity environments. The device offers a variety of control inputs, such as PWM, analog and digital signals, which can be used to control the speed and torque of the motor. It includes built-in current limiting protection and features an “On-Off” back EMF sensing scheme to ensure reliable operation and improved energy conversion efficiency.

The device features a built-in switching converter that accepts a wide input voltage range (4.5 to 28 V) and provides a regulated output voltage. This output voltage can be adjusted using on-chip trimming resistors. The L9906 also integrates a power MOSFET driver with an over-temperature protection circuit, providing thermal protection to the motor and its driver in the event of an over-temperature condition.

The device also offers a wide range of output voltage ranges (from 0.75 V to 28 V). This range is suitable for controlling a variety of motor types, including brushless DC motors and BLDC (Brushless Direct Current) motors. It also supports a wide range of voltage and current input signals, such as PWM (pulse width modulation), analog and digital signals.

In addition, the L9906 includes a range of features that provide improved energy efficiency and reliability, such as a built-in circuit for eliminating spurious noise, an adjustable BEMF (back electromotive force) gain, an on-board current sensor, an integrated watchdog timer, and an internal temperature sensing circuit for monitoring the temperature of the motor and its driver.

The L9906 is a highly integrated, cost-effective linear motor driver and controller PMIC. It provides a wide range of input and output voltages to suit a variety of harsh-environment motor control applications. With its integrated current sensing and over-temperature protection circuits, the device ensures reliable and energy-efficient operation of the motor and its driver. The device also offers a wide range of voltage and current input signals to support a variety of motor types. Moreover, built-in features such as the noise cancelling circuit, adjustable BEMF gain, and multiple output voltage ranges provide improved reliability and energy efficiency.

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