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IRS21864PBF - A Versatile High/Low-Side Driver for Industrial and Automotive Applications

2023-05-28

Manufactured by Infineon Technologies, this driver provides independent and non-inverting channels that allow it to drive two power switches in a half-bridge topology. With a supply voltage range of 10V to 20V, peak output current of 4A (source and sink), and fast rise/fall time, the IRS21864PBF is an excellent option for power conversion units and motor drive systems that require high-side switching and overcurrent protection. 

Over the last decade, power electronics technology has been rapidly advancing, driven by the rising demand for energy-efficient and reliable industrial and automotive applications. One of the essential components in this trend is the high/low-side driver, a device that controls the switching of power switches (MOSFET or IGBT) in half-bridge and full-bridge topologies. 

In this article, we will explore the advantages and applications of the IRS21864PBF - a high-performance driver that offers many features for the most demanding applications. The IRS21864PBF is a highly versatile driver that can be used in a wide range of applications where high-side switching and lower voltage level control are required. As an example, the device can be applied for power conversion units, battery management systems, solar inverters, and electric vehicles, among others. 

In addition, the driver can operate as a single-ended, push-pull, or bridge configuration, depending on the application's requirements. Its non-inverting input architecture means that the device can interface with most microcontrollers, TTL and CMOS logic, and gate drivers. Another key feature of the IRS21864PBF is its ability to handle high voltages up to 600V, which makes it compatible with various IGBT and MOSFET devices used in high-power applications. 

IRS21864PBF

The device uses a bootstrap voltage technique for high-side switching, minimizing the number of components required, reducing the PCB area, and improving the cost-effectiveness of the application. The IRS21864PBF driver has a peak output current capability of 4A during both source and sink, making it an ideal choice for driving high-power applications. Additionally, it has a fast rise/fall time of 22ns and 18ns, respectively, enabling it to turn on and off power switches quickly, reducing switching losses, and achieving high efficiency. 

The device's operating temperature ranges from -40C to 150C, allowing it to be used in harsh environments without compromising reliability. Its package type is through-hole 14-DIP, which enables easy mounting and installation on the PCB board. 

In conclusion, the IRS21864PBF driver is a powerful and versatile component that can be used in various industrial and automotive applications where half-bridge and full-bridge topologies are used. With its ability to handle high voltages up to 600V, fast switching times, and high output current capability, the device is an excellent option for applications requiring high efficiency, reliability, and optimal performance. Whether in electronic vehicles, solar inverters, or battery management systems, the IRS21864PBF driver is a reliable and effective option for power electronics applications.

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