MC34912BAC

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The MC34912BAC is a specific type of power management integrated circuit (PMIC) designed to manage multiple power supply rails in a single package.  It is ideally suited to applications in the data storage, communications, and medical industries, where it is tasked with over-voltage and over-current protection to ensure safety, reliability, and shortened design cycles.  The MC34912BAC is a power scheme manager that allows very high current supplies to be maintained for micro-processors, peripherals, and external components, as well as providing control for analog and digital peripherals, including audio, video, and communications.

The MC34912BAC power management IC provides power management solutions for memory and interface circuits, with both primary and secondary protection circuitry that ensure that low voltage circuits and protection components are safely managed in either the product or the system design.  It provides a number of solutions for variable power supply requirements, including adjustable output voltages, current limiting, and adjustable or programmable over-current and over-voltage protection.  With its integrated and advanced fault protection features, the MC34912BAC also features a wide range of fault protection features and pin assignment options to meet numerous applications requirements.

The MC34912BAC power management ICs are built with a high-resolution ADC factory tested to ensure low supply ripple and so ensure system reliability. The current from the power management IC can also be terminated in different circuits based on user preference. It includes 20mA pull-up circuits for integrated control of peripheral blocks as well as integrated power on reset circuitry allowing the device to self-reset when additional protection is needed.  The low impedance power paths and protection circuits of the MC34912BAC can handle currents up to 150A, and this integrated design approach reduces overall component count and board space.

The internal architecture of the MC34912BAC power management IC incorporates three independent main control stages – a master regulator, a second-level regulator, and power switch stage.  The master regulator derives power from the input supply and charges the external bus capacitors.  The second-level regulator helps to maintain a steady output voltage that allows for the connected components and peripherals to function at the appropriate voltage level.  The power switch stage dynamically converts energy from the input supply into energy at the output stage to enable the device to switch from one voltage level to the next with no loss of power.  The power switch stage helps to effectively maintain the voltage at the output port and helps to protect against over-current and over-voltage events.

The MC34912BAC is an advanced power management solution, which offers a dedicated solution for applications that require a wide range of power management requirements.  Its integrated architecture makes it the ideal choice for data storage and communications systems, as well as medical applications.  Its low impedance power paths and protection circuits can handle up to 150A current and offer reliable system performance, while its integrated fault protection features help to protect against any unwanted power events.  Its adjustable output voltages, current limiting, and adjustable or programmable over-current and over-voltage protection features further reduce the overall design and mounting costs, ensuring it is the ideal choice for a wide range of applications. 

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