EL7412CM

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Power management integrated circuits (PMICs) are an ever-growing collection of chips that help regulate and control the flow of power to other integrated circuits. Gate drivers are an important part of a PMIC package as they help control the functionality of the semiconductor devices within the chip. Fans of EL7412CM, a high-level gate driver IC, are in luck as this article will provide an overview of its application fields & working principles.

Application field

EL7412CM is an improved version of the popular EL7412C. It features enhanced specifications and is designed for a broad range of applications, such as industrial, automotive, HVAC and white goods.

The device is typically deployed in areas where smooth switching and power efficiency are critical such as in power supplies, amplifiers, audio equipment, and display or lighting applications. It is suitable for controlling power switches (MOSFETs, IGBTs, etc.) operating at 3.3V to 18V.

EL7412CM is available in 8-pin DIP and SOIC packages, with a wide-temperature range (-40°C to +125°C). With its high performance and low cost, this IC is ideal for a variety of demanding applications.

Working principle

The core of EL7412CM is the synchronous rectifier composed of the combination of an internal P-channel MOSFET and an N-channel MOSFET. When sufficient voltage is applied to the gate of the MOSFET, current flows through its source and drain pins, resulting in an output voltage at the drain. The voltage at the gate determines the level of current that will flow through the MOSFET, thus allowing for precise control over power.

The primary benefit of using EL7412CM is its low voltage operation, which is beneficial for applications that require high reliability and compact size. The device has integrated protection features which protect the connected MOSFETs against overcurrent, overvoltage, and reverse current, as well as temperature protection. These features ensure the MOSFETs are not damaged and help prevent any damage or malfunction.

The output switching is controlled through an input signal. To reduce electromagnetic interference, the input signal must be supplied at the same time as the output switching pulse. Output switching is optimized by adjusting the frequency of the clock signal, allowing the device to operate at frequencies up to 500kHz.

In addition, the integrated dead-time control feature of the EL7412CM helps minimize switching losses, thereby improving the power efficiency of the device. The device is also extremely efficient and has a very low dropout voltage of 1V. This helps reduce power consumption and improves the overall efficiency.

In conclusion, EL7412CM is a highly efficient and reliable high-level gate driver IC that provides precise control of power switches. The device has a wide operating voltage range and integrated protection features, allowing it to be used in a variety of applications. Its low voltage operation and efficient design make it an ideal choice for efficient, compact and reliable power control.

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