MP1924AHS-LF-Z

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Introduction

PMIC - Gate Drivers are a type of integrated circuit which is used to switch automated high-current electrical loads. It has been used in the automotive, industrial and component markets, where it has become a necessary component for reliable performance. Specifically, the MP1924AHS-LF-Z is a pre-configured, automotive-grade PWM control IC with automatic dead-time control, making it ideal for power, body, convenience and safety applications.

Application Field

The MP1924AHS-LF-Z is primarily used in automotive applications, where its highly efficient switching, low on-state resistance, and low tail current help support applications like lighting, motors, and valves. It is capable of supporting configurations up to 16-segment PWM mode, 64-KHz operation, and 5 A of output current, allowing it to reliably switch loads up to 10A in load current. Additionally, its efficient, non-masking technology allows it to control transistors on the same pulse up to a 40 V load, making it perfect for automotive accessory applications. Moreover, its internal temperature protection ensures that it can remain stable even in extreme conditions.

Working Principle

The MP1924AHS-LF-Z is a dual full-bridge driver, with integrated high and low side drivers, and an applicable wide range of operating voltages. It is capable of providing simultaneous PWM control of two separate DC-DC converters from a single-ended PWM input signal. Its high-side drivers have greater protection against shorts and surges, while its low side drivers are protected against shorts, reverse polarities, and open output conditions. In order to ensure a 0 V, the PWM driver provides 19 V of startup voltage to both high and low side switches with a 20 V minimum operating voltage.

The MP1924AHS-LF-Z can support phase-shifting applications with outputs of up to 10 A, and can also be used in phase-shifting applications with output currents up to 160 A. The driver operates at high frequencies with internal dead-time control, making it perfect for applications with multiple power supply transistors. It also offers the flexibility of configuring the PWM input from either a resistor, an internal oscillator, or an external clock. It has an integrated pulse-width modifier, providing for both low and high switching currents. The low side driver also provides current limiting. The MP1924AHS-LF-Z can additionally be configured for a wide range of voltages from 10 to 40V.

Conclusion

The MP1924AHS-LF-Z is a pre-configured, automotive-grade PWM control IC with automatic dead-time control, making it ideal for power, body, convenience and safety applications. It is primarily used in automotive applications, where its highly efficient switching, low on-state resistance, and low tail current help support applications like lighting, motors, and valves. It is a dual full-bridge driver, with integrated high and low side drivers, and an applicable wide range of operating voltages. The driver operates at high frequencies with internal dead-time control, making it perfect for applications with multiple power supply transistors. All of these features make the MP1924AHS-LF-Z an ideal choice for switching loads at high current.

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