IR2118STR Integrated Circuits (ICs)

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IR2118STR is one of the products of International Rectifier\'s (IR) Pulse Width Modulation (PWM) gate driver family. These gate drivers are integrated power circuit solutions for external motor control applications such as brushless DC (BLDC) motor drives, three-phase AC (TAC) motor drives, and brush DC (BDC) motor drives. The IR2118STR accepts a low-voltage (2.5V to 5.5V) input, generates a 10A peak output current and is designed to operate over a wide temperature range of -40°C to +125°C.

In the field of Power Management Integrated Circuits (PMICs), gate drivers are integrated circuits used to improve the performance of power switches such as MOSFETs and IGBTs in switching power converters and other applications. The IR2118STR gate driver is used in applications such as BLDC, TAC, and BDC motor drives for driving high voltage power switches such as MOSFETs and IGBTs. It can drive up to 10A peak output current (including rise and fall times), has a wide operating temperature range, and includes an active clamp network to manage power dissipation efficiently during a fault condition.

The IR2118STR includes several advanced features that make it suitable for a wide range of applications. Its advanced active clamping feature helps protect the field-stop device from excessive current during a fault condition. It also helps minimize the power losses in the active clamp circuit. It also features slew rate control, which allows the user to adjust the rise and fall times of the output signal to match the performance of the application. It also features a wide input voltage range of 2.5V to 5.5V, which enables the user to use the device with a wide range of power supplies.

The IR2118STR gate driver has two primary components: an input stage and an output stage. The input stage consists of a comparator and a voltage reference, which is used to convert the incoming signal into a logic level output. The output stage consists of a high-side power switch and a low-side power switch. The high-side and low-side switches are driven by the output of the comparator. The output of the comparator is then amplified and sent to the output pins of the device. The output of the device can then be used to control the switching of the power MOSFET or IGBT devices.

In addition to the basic device operation, the IR2118STR gate driver includes a number of safety features that help ensure the safety of the system. It includes several monitoring circuits that can detect and respond to overvoltage, overcurrent, undervoltage and short circuit conditions. It also includes an error correction feature that corrects errors in the system conditions. These features help ensure the reliable and safe operation of the system.

The IR2118STR gate drivers are designed to operate over a wide temperature range and include an internal active-clamp circuit and slew rate control. Therefore, they are suitable for use in applications such as BLDC, TAC and BDC motor drives, as well as other switching power converters. The IR2118STR gate drivers are available in several packages and pin configurations, making them suitable for use in a wide range of applications.

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