IR2108STR

Current - Peak Output (Source, Sink):	200mA, 350mA
Base Part Number:	IR2108S
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 150°C (TJ)
Rise / Fall Time (Typ):	150ns, 50ns
High Side Voltage - Max (Bootstrap):	600V
Input Type:	Non-Inverting
Series:	--
Logic Voltage - VIL, VIH:	0.8V, 2.9V
Voltage - Supply:	10 V ~ 20 V
Gate Type:	IGBT, N-Channel MOSFET
Number of Drivers:	2
Channel Type:	Independent
Driven Configuration:	Half-Bridge
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction to IR2108STR

The IR2108STR is a versatile, high performance gate driver IC from Infineon Technologies that features a high-speed, low-side MOSFET and a high-side insulated gate bipolar transistor (IGBT). The device is designed to be used in a variety of applications, such as motor drive and power conversion topologies. It also works well in high dynamic range applications such as full bridge rectification circuits, boost converters and electric vehicle inverters. The IR2108STR is capable of driving MOSFETs and IGBTs with both low and high side gate drive currents, as well as LVDS logic levels. It is also capable of providing large voltage swings, high pulse repetition rates and fast response times. With its state-of-the-art design, low power consumption and exceptional performance, it provides the most advanced driver solutions available on the market.

Application Field of IR2108STR

The IR2108STR is a robust gate driver IC ideal for using in Power Management Integrated Circuits (PMIC) and gate driver applications. It is often employed in motor drives, power supply applications, solar panel inverters and other high-power zones.In motor drive applications, the IR2108STR is used to drive both high and low side MOSFETs and IGBTs. Its high precision and fast switching speed allow for precise control of the motor power and torque. It also enhances the efficiency of the motor and helps increase the speed of the application.In power conversion topologies, the IR2108STR is used to control the fast switching times of transistors, enabling them to switch high power at fast speeds while maintaining a high degree of accuracy. This helps to ensure optimum efficiency of the application and reduce power output losses.In addition, the IR2108STR is also suitable for use in applications where the power levels require rapid stop/start operation, such as a voltage sag, or a start/stop cycle. It is also used in solar panel invertors and other high power applications.

Working Principle of IR2108STR

The IR2108STR is a monolithic integrated circuit (IC) designed to drive both low and high side MOSFETs, IGBTs and LVDS logic levels. It is designed with a current input stage and a pulse control stage. The current input stage is designed to receive a current reference signal (Iref) from the application, which is then used to generate the gate drive current for the high side and low side devices. The current input stage also provides active current limiting protection and output overvoltage protection.The pulse control stage is designed to receive a logic input signal and is responsible for providing the pulses that control the switching of the high side and low side devices. The pulse control stage also includes advanced features such as pulse-by-pulse current limit, driver blocking and adjustable dead time.The IR2108STR also includes special gate drivers, such as high frequency pulse stretching and enhanced HV gate drivers. The high frequency pulse stretching allows for switching of the high side and low side devices at higher frequencies for applications that require more speed and accuracy, while the enhanced HV gate drivers provide improved gate drive performance without compromising noise immunity.

Conclusion

The IR2108STR is a versatile, high performance gate driver IC that is suitable for use in both PMIC and gate driver applications. It has a current input stage and a pulse control stage, as well as several advanced features that make it suitable for driving both low and high side devices with excellent precision and accuracy. With its robust design and high performance, it is one of the most advanced gate driver solutions available on the market.

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