BD7679G-GTR

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The BD7679G-GTR is an AC-DC converter and offline switcher for power management integrated circuits (PMICs). It is used in applications that have higher power requirements, such as for efficient power distribution and noise reduction. The BD7679G-GTR has a number of features to help meet power requirements, including a wide range of output voltage, adjustable current limit and output voltage accuracy, high efficiency and high power factor.

The BD7679G-GTR is designed for use in applications requiring a wide input voltage range, both ac and dc, and a very low quiescent current. The device is capable of converting ac input voltages up to 280V into dc output voltages up to 24V. In addition, it is capable of a variable output voltage range from 0.5 V to 17V with an integral current source and over-voltage protection. The BD7679G-GTR requires 1.5 A of continuous output current at full load and can support up to 28A peak output current. The BD7679G-GTR also has built in over-current protection and short circuit protection, ensuring a safe and reliable operation of the device.

The BD7679G-GTR works on an open loop switcher concept, utilizing a pulse width modulation (PWM) technique to provide high efficiency and power factor correction. The device is designed to operate on a single-ended flyback topology, where an inductor and a transformer are used to divide and regulate the input and output voltages. The BD7679G-GTR utilizes an internal frequency oscillator and a signal comparator to generate the necessary PWM signals, which control the switching frequency and duty cycle. The PWM signals are then applied to the integrated MOSFET switches to regulate the output voltage.

The BD7679G-GTR also includes a peak current limit circuit, which is useful for applications that require a limited amount of peak current, such as motor applications. The peak current limit circuit uses an internal current source and a comparator to monitor the output current and limit it by reducing the duty cycle of the PWM signal. The BD7679G-GTR also includes an output voltage accuracy circuit, which allows for more precise output voltage regulation. The output voltage accuracy circuit monitors the output voltage and adjusts the duty cycle of the PWM signal in order to maintain the desired output voltage level.

The BD7679G-GTR is a very efficient PMIC and is designed to meet the power requirements of many applications such as motor drives, battery chargers, and power supplies. The device is capable of providing high effi ciency and power factor, while also providing accurate output voltage regulation and low quiescent current. The device is also capable of a wide input voltage range and high peak current limit, making it a great choice for many split power applications.

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