BD9528AMUV-E2

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BD9528AMUV-E2 is a type of power management integrated circuit (PMIC) with linear and switching voltage regulator functions. It is designed to be applied to DC/DC regulator for automotive and Li-ion battery charging applications.

Features

The BD9528AMUV-E2 consists of an input voltage regulator, a linear and switching voltage regulator, a 8-digit LED display, a power MOSFET driver with over current protect, and a voltage drop between the input/output terminal and ground. The PMIC provides integrated overvoltage protection and output short circuit protection to ensure system stability and safety.

The features of BD9528AMUV-E2 includes:

• Low quiescent current
• High efficiency operation
• Low output noise
• High precision regulation
• High integration
• Built-in overvoltage protection
• Built-in output short circuit protection
• 8-digit LED display
• Power MOSFET driver with over current protection

Application fields

The BD9528AMUV-E2 is suitable for use in a wide range of applications including:

• Automotive DC/DC converters
• LED lighting systems
• Li-ion battery chargers
• Switched mode power supplies
• AC/DC power adapters

Working Principle of BD9528AMUV-E2

The BD9528AMUV-E2 integrates an input voltage regulator, linear and switching voltage regulator, 8-digit LED display, power MOSFET driver with over current protect and voltage drop between the input/output terminal and ground. It consists of an input voltage sensing circuit and an output voltage control circuit. The input voltage sensing circuit senses the input voltage and then converts the input voltage into a control signal. The output voltage control circuit converts the control signal into a suitable output voltage by controlling the power MOSFET driver. It also provides protection functions such as overvoltage protection and output short circuit protection.

The BD9528AMUV-E2 uses a Linear Voltage Regulator (LVR) to regulate the input voltage to produce a constant output voltage. The LVR is connected to the output voltage control circuit, which provides feedback control to the LVR so that the output voltage remains stable. When the input voltage increases above the nominal value, the power MOSFET driver will reduce its current to maintain the output voltage at the correct value. Conversely, if the input voltage drops below the nominal value, the power MOSFET driver will increase its current to maintain the output voltage at the correct value. This ensures a stable output voltage and makes possible power supply electronics with high efficiency. The 8-digit LED display shows the output voltage and other status of the applied power supply circuit.

Conclusion

The BD9528AMUV-E2 is a PMIC with linear and switching voltage regulator functions. It is designed for automotive, Li-ion battery and general power supply applications. Its features include low quiescent current, high efficiency operation, low output noise, high precision regulation and high integration. It provides built-in overvoltage protection and output short circuit protection. The 8-digit LED display provides detailed information about the power supply circuit. It is ideal for use in a wide variety of applications.

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