LB11851TT-TLM-H

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Power management integrated circuits (PMICs) are integrated circuits that are specialized for managing power efficiently and reliably in different types of electronic devices. One type of PMIC is a motor driver, controller, or driver/controller. The device in this product family that will be discussed is the LB11851TT-TLM-H.

The LB11851TT-TLM-H is a motor driver IC developed by on Sanken Electric Co., Ltd., and is called a two terminal motor drive IC. It is designed to control a two-phase brushless DC motor, which is the type of motor used in various applications such as white goods and automotive components.

The LB11851TT-TLM-H is well-suited for high-efficiency (90%) and high-reliability applications. It is also matched with a very thin profile package (1.6mm x 1.8mm x 0.45mm), making it suitable for a variety of compact, lightweight applications where high efficiency and reliability are necessary. It also offers protection features such as over-current protection, over-voltage protection, and short-circuit protection.

This device\'s application areas include office automation equipment, automotive components, printers, video cameras, motorized tools and toys, electric vehicles, and cellular phones. The device is particularly suitable for car navigation system motors, air conditioner or refrigerator motors, electric drills, audio equipment motors, and camera optics actuators.

The LB11851TT-TLM-H works by controlling the switching of the motor and regulating its supply current, thereby controlling its speed and torque. The built-in CSFB, FG, and voltage regulators ensure that the optimum supply voltage is supplied to the motor and accurate current control is maintained. The driver-controller is capable of up to 1.0A continuous and 2.0A peak phase current, and it features an advanced ground-ship algorithm for precise current control.

The principle of the LB11851TT-TLM-H controller is based on ground-ship control technology, which enables the controller to accurately detect the motor phase and keep the supply current in a desired range. In addition, the built-in comparator is used to detect the motor phase, and the PWM control circuit is used to adjust the motor torque and speed.

The LB11851TT-TLM-H motor driver/controller is a versatile and reliable solution for controlling two-phase brushless DC motors. It is designed for high efficiency and reliability, and offers a wide range of features, such as over-current, over-voltage, and short-circuit protection. This device is well-suited for applications such as office automation equipment, automotive components, audio equipment, and cameras. The built-in CSFB, FG, and voltage regulators ensure that the motor is supplied with the optimal voltage and the ground-ship control technology enables accurate current control of the motor.

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