LB1929-E

The LB1929-E, developed by Toshiba Semiconductor, is a PFM V-F linear voltage regulator, designed for input and output voltage of up to 24V, for use in automotive and industrial applications. It is part of the LB series of voltage regulators, which are designed to meet the growing demand for energy-efficient and reliable power regulation. The LB1929-E has a low quiescent current, allowing it to be used in a wide variety of applications, such as motor drivers and controllers, power line compensation, and various other automotive and industrial applications.

Motor Drivers and Controllers

The LB1929-E is ideal for use as a motor driver and controller. It can be used to control the speed of a motor, as well as regulate the current to ensure the motor does not run too hot or consume too much power. It has an internal voltage linear regulator and a wide range of duty cycles, allowing it to be applied in applications ranging from RC craft and drones to automotive applications. In addition, the LB1929-E has a wide supply voltage range, meaning that it can be used with a variety of motor types, from low-voltage DC motors to high-voltage stepper motors.

Power Line Compensation

The LB1929-E can be used to provide power line compensation in applications where power needs to be regulated in order to prevent overcurrent or undercurrent conditions. It has the ability to regulate the output current by controlling the input voltage. This makes it ideal for use in applications where the voltage is unstable or fluctuating, such as industrial equipment.

Other Applications

The LB1929-E can also be used in a variety of other automotive and industrial applications. It is well-suited for use in low-power applications, such as fuse saturation and earthing. In addition, it is suitable for use in applications that require precision control of the applied current and voltage, such as electronic ballasts and solar panels.

Working Principle

The LB1929-E works by controlling the voltage applied to the motor by modulating the coil current. This is achieved using Pulse Frequency Modulation (PFM) technology, which is a method of regulating the effective output current by controlling the pulse width of the output voltage. By controlling the pulse width, the current applied to the motor is regulated, allowing it to run at the desired speed.

Overall, the LB1929-E is a versatile and energy efficient voltage regulator, which is well-suited for use in a wide range of motor drivers, controllers, power line compensation, and other automotive and industrial applications.