IRS2336STRPBF Integrated Circuits (ICs)

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PMIC - Gate Drivers are increasingly becoming popular due to their ability to control a variety of different components in a wide range of applications. The IRS2336STRPBF is an example of such a device, offering an efficient, cost-effective solution for a variety of gate drives. This article outlines the application fields and working principle of the IRS2336STRPBF.

Application Fields

At its core, the IRS2336STRPBF is a high-side gate driver capable of driving both high- and low-side switches of Si or SiC power MOSFETs up to 20A at a 400V blocking voltage. This makes it suitable for a variety of industries and applications, such as in automotive powertrain systems, dc/dc converters, soft starters and motor controls. In addition, the IRS2336STRPBF has an extended fault-protection feature that makes it particularly suited for automotive electro-mechanical systems, delivering a consistently reliable level of performance.

Due to its ability to drive both low- and high-side switches, the IRS2336STRPBF can also be used in buck, boost and inverter applications, for applications such as automotive pumps, window lifting systems, gate drives and lighting. Additionally, the device comes with integrated protection features, such as under voltage lockout, UVLO and open load detection, which further broaden the range of applications in which the device can be used.

Working Principle

The IRS2336STRPBF uses a current-mode control architecture, enabling the device to maintain extremely fast switching times and thus deliver a highly efficient gate drive. The device also utilizes an additional charge pump functionality to provide sufficient drive voltage to both low- and high-side switches of power MOSFETs. The P- and N-channel MOSFETs are controlled by an external microcontroller, which is connected via two digital input lines, one for the high side and one for the low side. The device also features an adjustable over-current detection and protection circuit, as well as adjustable short-circuit protection.

The IRS2336STRPBF also comes with an advanced protection feature, which monitors the operating points of the MOSFETs and compares them to the leakage values. This prevents the device from suffering from any unexpected transient conditions caused by switching components, such as power MOSFETs. The device also features an active load current measurement circuit, enabling the microcontroller to accurately monitor the current flowing through the MOSFETs.

In addition to these protection features, the IRS2336STRPBF is also equipped with an active-current mode controller that can be adjusted through an external resistor. This allows the device to handle larger but still dynamic loads. The device also offers an integrated thermal protection feature, which monitors the temperature of the device and will shut it down in the event of an excessive rise in temperature.

The IRS2336STRPBF gate driver therefore provides an efficient, cost-effective solution for applications requiring both low- and high-side gates. Its fast switching speeds, integrated protection features and adjustable current-mode controller make it particularly suitable for automotive-related applications, where a consistent and reliable level of performance are essential.

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