LV8121V-TLM-H Integrated Circuits (ICs)

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LV8121V-TLM-H is a polyphase buck-boost LED driver with integrated high side MOSFET, a 6-channel LED driver IC offered by TDK Semiconductor and a high-performance motor driver microcontroller. It has a high efficiency, low power consumption and low threshold voltage operation.

Application Field

The LV8121V-TLM-H is mainly used in AC/DC LED lighting applications and motor driving applications. It has the ability to boost LED brightness with a single LED connection, so it can be used in light emitting diode (LED) lights and LED displays in home, office and other commercial settings. The IC is also used for motor control applications for various industries such as automotive and home electronics.

Working Principle

The LV8121V-TLM-H utilizes a buck-boost DC/DC converter architecture to provide higher power output and maximum flexibility for LED applications. It is configured to be connected to the metal-oxide-semiconductor field-effect transistor (MOSFET) in parallel with the inductor and the output capacitor to increase the power density. The device features PolyPhase synchronous buck-boost control, which switches buck and boost modes depending on thickness of load and input voltage. It also employs a low-side MOSFET control which reduces system power consumption, allowing it to achieve high efficiency and low shutdown current.

The LV8121V-TLM-H offers a motor control interface with a variety of features including PWM (pulse-width modulation) output frequency, compensator gain and deadtime control. It is able to sense and control superior path speed and current with its built-in A/D converter, and it offers efficient protection against overcurrent and short circuit. It also provides programmable multiple-drive functions.

In summary, the LV8121V-TLM-H is a highly integrated, low-power motor driver microcontroller that combines high-efficiency buck-boost DC/DC switching, low-side MOSFET control and motor control interface for various industries. It enables flexible LED lighting and motor control applications with high efficiency and low shutdown current with its advanced features.

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