MP9928GL-Z

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The MP9928GL-Z is a type of DC-DC switching controller, which belongs to Voltage Regulators category of PMIC (Power Management Integrated Circuit). It is mainly used in battery powered systems, featuring a wide input voltage range, high efficiency, and high reliability. This device is well-suited for a variety of applicatios, from cell phone chargers and portable gaming systems, to data-loggers and automotive systems.

Design Properties of MP9928GL-Z

The MP9928GL-Z has a handful of features that make it very useful in a wide variety of applications. Some of its key features include 8-bit phase-shift pulse width modulation (PWM) control, low shutdown current at 0.45 μA, wide input range of 2.7 V to 5.5 V, adjustable output voltage of 0.5 V to 5 V, and over voltage protection. Additionally, the MP9928GL-Z can also provide over current protection, adjustable soft start times, and minimum external component solutions.

Operation Principle of MP9928GL-Z

The MP9928GL-Z follows the flyback topology and uses the switching frequency of 300kHz for the output current up to 2A. The input voltage is supplied to the P-Channel MOSFET, which is connected to the source terminal of the primary side of the transformer. As the P-channel MOSFET turns ON, the energy is generated in the primary side of the transformer and stored in the cores and windings. As a voltage is induced in the secondary side of the transformer, it is rectified and then applied to the output capacitor connected to the load. The feedback voltage is applied to the FB pin and is then compared with the internal reference voltage, which helps to regulate the output voltage.

The enable pin (EN) is used to enable or disable the MP9928GL-Z. When the EN pin is high the device will start to operate and when it is low, the device will reject the input voltage and the current consumption at the IC will be close to zero.

Applications of MP9928GL-Z

The MP9928GL-Z is an ideal DC-DC switching controller for a variety of applications, such as cell phone chargers, portable gaming systems, data-loggers, automotive systems, and more. Due to its wide input voltage range, high efficiency, and high reliability, it can be used for reliable data storage, charging and regulating the current for small, battery-powered systems, and other applications where a controlled output voltage is required.

The MP9928GL-Z can also be used for energy storage, battery charging, and voltage boosting applications. It can be used to design a power supply for automotive electronics, such as airbag systems, ABS, ESC and ECU. Additionally, the MP9928GL-Z can also be used to design a power supply for consumer electronics, such as digital cameras, mobile devices and PDA\'s, portable DVD players, GPS receivers, and more.

Conclusion

The MP9928GL-Z is a type of DC-DC switching controller device, which is well-suited for a variety of applications, from cell phone chargers and portable gaming systems, to data-loggers and automotive systems. Due to its wide input voltage range, high efficiency, and high reliability, the MP9928GL-Z is an ideal choice for reliable data storage, charging and regulating the current for small, battery-powered systems, and other applications where a controlled output voltage is required. It is versatile enough to be used for energy storage, battery charging, and voltage boosting applications as well.

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