EL7222CS-T7

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PMIC stands for Power Management Integrated Circuit, and is an integrated circuit board or a set of integrated circuits optimized for management and regulation of the supply and power landscape of an integrated circuit or system. Gate Drivers are a type of PMIC which acts like a switch in the interface between the power supply components of the integrated circuit or system and the input control line. The EL7222CS-T7 is such a product, specifically of the Gate Driver PMIC family. It is a low-side gate driver, rated for 8A continuous output current, intended for use as an automotive-grade independent low side/high side gate driver.

One of the main features of the EL7222CS-T7 chip is the integrated high-side and low-side gate driver, with two outputs. It is a two-channel fully-protected integrated power-switch that is designed to drive power FETs up to 20A of total current. The chip is also designed to take greater care of ESD protection, transient protection, and current limits, as compared to other solutions.

The chip also features a supply voltage range of 6 to 26V, and an operating voltage, of –1.5 to 100V, making it suitable for a wide variety of applications, from the automotive to industrial. It also has an integrated voltage clamp that is optimized for use with automotive loads, improving noise immunity and EMC performance. The supply voltage itself is controlled by an integrated monitor, which helps ensure that levels are kept within the specified range at all times.

The EL7222CS-T7 is also designed for a very low quiescent current of 3 µA, making it particularly suitable for low-power automotive and industrial systems. It also includes a long standby shutdown time of 25ns and a control output enable of 5 ms. This enables the user to turn the device on or off very quickly, without consuming an excess of power.

The core working principle behind the EL7222CS-T7 is that it is a low-side gate driver IC, which takes the input signal from the processor or the microcontroller, interprets it and then activates or deactivates the power FET or MOSFET accordingly. This action then allows the processor or microcontroller to control the power supply to the load. The chip is also designed to provide efficient and reliable current protection, thereby increasing the operational safety of the system overall.

The major application field of the EL7222CS-T7 is in automotive and industrial equipment, and in particular, in the electrification of automotive engine control systems. It is designed and qualified for use in these applications, with a specified supply voltage of 12V, a total maximum of 20A load current, and with the abovementioned operating voltage of –1.5 to 100V. It is then, an ideal candidate for automotive drive and control applications, especially due to the integrated voltage clamp that is designed to help protect the load, and improve noise immunity and EMC performance.

Concluding, the EL7222CS-T7 from ELMOS is a low-side gate driver IC, with integrated high-side and low-side driver, and a supply voltage range of 6 to 26V. It is a PMIC of the Gate Driver family, and is especially intended for use in automotive and industrial equipment. It is a two-channel power switch, qualified for loads up to 20A, and is equipped with a long standby shutdown time of 25ns, among other features. Its working principle is to take an input signal from the processor or microcontroller, interpret it and activate or deactivate the onboard power FET or MOSFET accordingly, allowing the processor or microcontroller to control the power supply.

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