LV8406T-TLM-E Integrated Circuits (ICs)

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Power management integrated circuits (PMICs) are a common component used to provide power management in smartphones, industrial applications, and consumer electronics. They help design engineers to optimize the power efficiency of their products. PMICs can offer many benefits for applications, such as low power consumption, reduced system complexity, higher automation and improved reliability and safety. The LV8406T-TLM-E is a recently developed PMIC from Texas Instruments (TI) designed specifically for motor drivers and controllers.

LV8406T-TLM-E Application Field and Working Principle

The LV8406T-TLM-E is a dual-channel, voltage-mode, linear step-down pulse width modulation (PWM) controller with embedded power MOSFETs for motor drivers and controllers. It supports two independently sourcing PWM outputs for ground-referenced and source-referenced control. Each of the two PWM outputs has a synchronous rectifier (SR) with an integrated current sense amplifier.

The device also provides a programmable, low dropout (LDO) voltage regulator with automatic power saving mode, over-temperature protection, under-voltage lockout, and five distinct output voltage selections. The LV8406T-TLM-E is designed to provide designers with the ability to regulate a wide voltage range and output current to maximize performance and efficiency. The device is ideal for applications such as electric motors, fans, pumps, and other motor control applications.

The working principle of the LV8406T-TLM-E is relatively simple. The device accepts a wide input range, which ranges from 4.5 to 24V. This input voltage is regulated by an internal regulator, which provides an adjustable output voltage range of 1.5 to 16V. The PWM outputs are controlled by a current sense amplifier, which senses the current passing through the SR of each PWM output. The current sense amplifier then amplifies the detected current and sends it to the controller, which then adjusts the output voltage accordingly.

The device also supports a programmable soft-start rate for setting the output voltage to the desired level at start-up. The device offers protection from overcurrent and over-voltage conditions, as well as peak current limitation. Additionally, the device supports compensation for both the PWM outputs, enabling designers to customize the output voltage for their application requirements.

In summary, the LV8406T-TLM-E is a dual-channel, voltage-mode, linear step-down pulse width modulation (PWM) controller with embedded power MOSFETs for motor drivers and controllers. The device is ideal for applications such as electric motors, fans, pumps, and other motor control applications. With integrated protection features, adjustable output voltage range, and low power consumption, the LV8406T-TLM-E is an excellent choice for designers who need a reliable and cost-effective motor driver and controller solution.

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