BD9326EFJ-E2

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The BD9326EFJ-E2 is a monolithic integrated switching regulator designed for automotive use. It has a wide variety of features that make powering an automotive system simpler and more efficient. The BD9326EFJ-E2 can be used in applications such as power supplies, battery management, energy harvesting, and charging systems. This versatile device is ideal for automotive systems that require precise current and voltage regulation. This article will explore the application fields and working principles of the BD9326EFJ-E2.

Application Field

The BD9326EFJ-E2 is a PMIC – Voltage Regulators – DC DC Switching Regulators which is optimized for use in automotive applications.

The BD9326EFJ-E2 is designed to be used in applications where power efficiency and precise control of current and voltage are critical. This device can be used for powering systems such as automotive electronics, such as audio systems, airbags and seatbelts. Furthermore, it can also be used in battery management and energy harvesting applications. This device is capable of regulating the current and voltage to ensure that the system is powered safely and efficiently.

The BD9326EFJ-E2 has a wide range of features that make it ideal for automotive applications. It is designed for use with a wide voltage range, ranging from 4.5V to 60V. It has a maximum power rating of 20W and can deliver up to 10A of current. Furthermore, it has a maximum switching frequency of 500kHz, which makes it suitable for fast power conversion. Additionally, this device is designed to operate over a wide temperature range of -40°C to +125°C. This makes it suitable for high power, automotive applications.

Working Principle

The BD9326EFJ-E2 is a buck-boost switching regulator, which means that it can regulate both the input voltage and output voltage. It is a switched-mode power supply which means that it works by rapidly switching the power on and off to the load. This switching action creates a low-loss, high-efficiency power conversion system.

The BD9326EFJ-E2 has an internal digital voltage loop which is used to regulate the output voltage of the device. This voltage loop uses an operating principle known as pulse-width modulation (PWM). This principle utilizes a digital signal to regulate the on / off switching of the power supply. The PWM signal controls the ratio of the time in which the power is on and off. This ratio is called the Duty Cycle, and it is this that the digital voltage loop uses to control the output voltage of the device.

The BD9326EFJ-E2 also has a built-in current-mode control loop which is used to regulate the current of the device. This control loop is designed to ensure that the device does not exceed its maximum current rating. This current-mode control loop utilizes an operating principle known as peak current mode control. This mode of control uses the voltage across a Sense Resistor to regulate the maximum current of the device.

Overall, the BD9326EFJ-E2 is a versatile device that is ideal for automotive applications where precise current and voltage regulation is required. It has a wide range of features, including a wide voltage range, high power rating, fast switching frequency, and wide operating temperature range, that make it suitable for applications in battery management, energy harvesting, and automotive systems.

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