EL7155CN

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Power management integrated circuits (PMICs) are an increasingly important facility in electronic systems. They integrate multiple components into a single package in order to provide localized power management and control. In the field of power management PMICs, gate drivers are a type of chip which allow control signals to be sent to external power elements such as MOSFETs, IGBTs and other devices. The EL7155CN is a midrange gate driver PMIC which provides the capability to control, convert and distribute power to complex circuits.

The EL7155CN is designed for use in a wide range of applications. In particular, it is suited to applications where low pin count and low power consumption are important such as automotive, industrial, and consumer electronics. Examples of applications in these fields include energy management systems, power supplies, motor drives and display controllers. The device is also uniquely capable of high precision control applications such as DC motors and paper feeder drives.

The primary function of the EL7155CN is to convert the output of a microcontroller or other driver IC into high voltage levels necessary to switch power devices such as IGBTs, MOSFETs and BJTs. This involves the use of two main components — a low-voltage logic section and a power section. The logic section is used to accept signals from the driver IC and convert them into the higher voltage levels needed to drive the power section. The power section is then used to drive the power devices.

The EL7155CN also includes a number of additional protective and monitoring features, such as an overvoltage protection circuit, a temperature warning circuit, an ESD protection circuit, and an overcurrent power limiting circuit. These features allow the device to be deployed in a range of demanding applications, providing enhanced reliability and robustness in the system.

In operation, the EL7155CN receives control signals from the driver IC and uses them to drive the external power elements. The power section features a built-in high-speed MOSFET driver which can deliver pulse width modulation (PWM) signals with up to 1MHz capability. This allows for the rapid control of power devices in line with the input signals from the control IC. The high speed driver is also capable of driving power devices with up to 20A of current.

The EL7155CN also provides an on-chip charge pump circuit which is used to provide high-side gate drive while reducing power dissipation and switching noise. This allows the device to maintain a low-power operation even when driving high-power devices. Furthermore, the inclusion of low on-resistance and zero current switching on the low-side MOSFET allows for greater efficiency in power conversion.

The EL7155CN is a powerful gate driver PMIC which combines high-speed, reliability, and robustness into a single package. Its wide range of features, including its high-speed MOSFET driver, charge pump circuit and protective features, make it an ideal solution for automotive, industrial and consumer applications which require low-pin count, low power consumption and high precision control.

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