MB3763PH-G-JNE1 Uncategorized

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The MB3763PH-G-JNE1 is an Application-Specific Integrated Circuit (ASIC) that is primarily used in applications of power conversion, specifically DC-DC conversion by controlling variable output voltage. The device is widely used in systems that require high-speed, low-frequency (~200 kHz) switching capability within a wide input voltage range (3V-5V DC). It offers a variety of features, including adjustable output voltage, current limit control, shutdown mode, wattage meter circuit, and reverse output current protection. Additionally, an external potting network for dead-time adjustment is provided.

The MB3763PH-G-JNE1 is based on a peak current-mode architecture that provides excellent current limit accuracy. The device utilizes Pulse-Frequency-Modulation (PFM) control to ensure proper operation and offers a frequency foldback protection feature that protects the switching activity in overcurrent conditions. The device includes a dual high-side NMOSFET driver, which can switching up to 2A at a frequency of 200 kHz. The device also includes a feedback circuit with adjustable output voltage, an internal current limit, an overtemperature protection circuit, and a shutdown mode.

In order to get the most out of the MB3763PH-G-JNE1, it is important to understand its operating principles. The device utilizes a peak current-mode control scheme where a current-sensing circuit compares the peak current value of the inductor with a reference current value and adjusts the output voltage accordingly. Additionally, the PFM control scheme is used to regulate the output voltage to the desired value, by modulating the frequency of the switching activity. This ensures that the device operates in a constant frequency mode, while the peak current remains constant.

The MB3763PH-G-JNE1 also has the capability to be used in battery powered applications. The device includes a dedicated low-battery shutdown circuit for battery-operated systems, which ensures that the device is disabled when the input voltage drops below a certain value. This prevents over-discharging of the battery and increases the efficiency of the system. Additionally, the device includes an adjustable output voltage feature which allows the user to set the output voltage of the device to meet their specific requirements.

The MB3763PH-G-JNE1 is a versatile and reliable device that is suitable for a wide variety of power conversion applications, ranging from portable electronics to industrial applications. It offers adjustable output voltage, current limit control, and other features that make it an ideal choice for meeting the requirements of consumers and designers alike.

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