L6751TR Integrated Circuits (ICs)

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The L6751TR was Introduced in 2019 by STMicroelectronics as a low-side gate and source driver integrated circuit (IC), which makes it an ideal solution for switching applciations that require high direct current (DC), such as switched-mode power supplies (SMPS). This IC consists of a high-side power switch, low-side MOSFET drivers and an analog control circuit. The L6751TR is part of the family of voltage regulators, specifically belonging to the category of "special purpose" voltage regulators.

The L6751TR operates within a wide range of 6-50V. It provides 1.5A sink current capability and can drive up to eight power MOSFETs from a single IC. This makes the L6751TR an ideal solution for applications that require fast switching, such as SMPS with non-linear loads. It also works well with LED driver ICs, especially those with high current requirement.

The working principle of the L6751TR is based on pulse-width modulation (PWM). The PWM output is generated by the internal oscillator and can be modulated by an external control voltage. This output is then used to drive the power switches. The power transistors are connected to the pre-driver stage, which is then driven by the PWM signal. The result is a tight voltage regulation.

The L6751TR includes a wide range of features and protections, such as over-current protection, over-temperature protection, dead-time protections, etc. It is capable of operating in target frequency modulation (TFM) as well as frequency current modulation (FCM) modes. It also has HV pin which can be used to provide high voltage or boost voltage from a single power-source. It does not require any external components for power-up.

The L6751TR is used in a wide range of applications, including switch mode power supplies, LED drivers, automotive power supplies and pulsed gate drivers. It is an ideal choice for applications that require high switching frequency and high direct current (DC) with low-EMI, and for highly efficient power supply designs. It is also used for acoustic power amplifiers and portable tools. This makes the L6751TR a great all-in-one solution for various applications.

In conclusion, the L6751TR is a low-side gate and source driver, which is part of the voltage regulator family, specifically specialized in "special purpose" voltage regulators. The IC has a wide range of features, such as over-current and over-temperature protection, dead-time protections and more, and can be used in a variety of applications, such as switch mode power supplies, LED drivers, automotive supply and pulsed gate drivers. The IC operates within a wide range of 6-50V and provides 1.5A sink current capability and can drive up to eight power MOSFETs from a single IC.

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