LB11851MC-BH

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Power management integrated circuits (PMICs) are semiconductor components that are used to manage and convert the power in a system. This is becoming increasingly important in system designs, as many of the components in the system rely on specific voltage levels to operate properly. PMICMotor Drivers, Controllers are responsible for the successful operation of motor devices.

LB11851MC-BH is a motor driver for general use in the automotive industry. Specifically, it is designed for DC-DC converter applications that involve a 24V input voltage. This motor driver can be used in systems such as electric power steering, electric fan pumps, cooling fans, and window lifts.

LB11851MC-BH features integrated over-current, over-voltage and over-temperature protection and can drive an output current of 8A, though the maximum continuous current it can support is 5A. In addition, it contains various protection circuits to protect the IC from various faults such as over-voltage, over-temperature and over-current. This motor driver also provides excellent stability and accuracy by utilizing a highly accurate PWM control system.

The LB11851MC-BH motor driver in particular is designed to provide a variable output voltage between 5V and 12V, with a maximum output of 10V. It has a wide input voltage range from 6V to 24V. The motor driver also supports a frequency range of up to 100kHz. Its small size and ultra-low power consumption make it a suitable choice for small-form-factor designs.

The LB11851MC-BH motor driver utilizes the pulse-width modulation (PWM) technique to directly control the internal switching devices. PWM is a method of controlling the power switches in an electronic circuit but with a fixed frequency and variable duty cycle. This allows precision control of the output voltage and current levels, making it ideal for modern DC-DC applications.

The LB11851MC-BH includes a slew rate control function, which helps to reduce unwanted noise and allows it to be used in sensitive applications. On-chip synchronous rectification circuitry further reduces power dissipation, making it more efficient and thus, reducing energy costs. The device also offers galvanic isolation, providing an added layer of protection for sensitive circuits.

In summary, LB11851MC-BH motor driver is designed for use in DC-DC converter applications, and offers several features to protect the system from various faults, such as over-voltage and over-temperature protection. It utilizes a highly accurate PWM control system to offer excellent stability and accuracy, with a wide input voltage range from 6V to 24V and adjustable output voltage range of 5V-12V, making it suitable for small-form-factor designs. It offers several features such as on-chip synchronous rectification and slew rate control to reduce power dissipation and unwanted noise. Consequently, LB11851MC-BH proves to be a great choice for automotive industry applications.

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