IR2155

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The IR2155 is a monolithic circuit designed to offer gate drive current up to 1.8A peak for various applications

Introduction

The IR2155 Gate Driver is a high-performance gate practice device designed for the efficient, cost-effective control of power Mosfets and IGBTs. It features a high level of integration and offers gate drive current up to 1.8A peak. The gate drive circuit is based on a single stage high power Operational amplifier, which allows optimized characteristics and high output current. Due to its high linearity and low distortion, the IR2155 provides optimal gate drive voltage stability for high performance switching applications.

Applications

The IR2155 gate driver is suitable for a variety of applications, including power supplies, converters and motor control systems. It is also used in portable devices and any application that requires high-current gate drive capability. This device can be used to drive any high power MOSFET, P-channel MOSFET, IGBT or any other gate-driven semiconductor.

The IR2155 gate driver is especially suitable for use in high rise buildings, power plants and industrial applications. The IR2155 is also ideal for automotive applications, as it provides very stable and consistent gate drive voltages.

Operating Principles

The IR2155 Gate Driver consists of a single stage high-power Operational amplifier, which can control the gate voltage of a Mosfet or IGBT with an accuracy of ±10 mV. The high performance operational amplifier is used to provide an optimized gate drive current up to 1.8A peak. The IR2155 includes an enable/disable circuit and an output enable/disable selector switch. Furthermore, the device also features a thermal shutdown circuit, to protect the internal circuit from excessive temperatures.

The IR2155 also offers adjustable gate voltage, which can be set using a Flash Accurate regulator circuit. The output voltage can be adjusted with ±10 mV accuracy. In addition, the gate drive voltage remains stable over the entire operating temperature range. The IR2155 provides overvoltage, undervoltage and overcurrent protection, to ensure that the device is protected from any possible fault conditions.

Conclusion

The IR2155 Gate Driver is a high performance device, designed for efficient and cost effective control of power Mosfets and IGBTs. It features a high level of integration and offers gate drive current up to 1.8A peak. The adjustable output voltage provides accuracy of up to ±10 mV, ensuring stable and consistent gate drive voltages. The IR2155 also includes various protection features, enabling protection from over-voltage and over-current conditions. This device is suitable for a variety of applications including power supplies, converters and motor control systems.

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