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PMIC - Gate Drivers - IRS2128SPBF Application Field and Working Principle

IRS2128SSPBF is a device from Texas Instruments, a leading digital signal processor and application specific integrated circuit (ASIC) maker. This device is part of the company\'s Power Management Integrated Circuits (PMIC) family, and is specifically a gate driver. This gate driver is designed to control IGBTs, Silicon Controlled Rectifiers (SCRs) and other power switch semiconductors that require a fast gate driving voltage.

The gate driver integrates a fast propagation delay of 17 ns, and has a 24V minimum supply voltage. This device features a number of features, such as the ability to simultaneously drive two MOSFETs or IGBTs in four-level cascode configuration and a wide input voltage range. It can continuously work in temperatures up to 125°C, and has an operating frequency of up to 250kHz.

The IRS2128SPBF gate driver has two main functions, switching and dead time control. In switching mode, it is used to rapidly switch the gate between high and low logic signals. In dead time control mode, the driver holds each MOSFET or IGBT at a predetermined and unique voltage for an adjustable amount of time. This eliminates false triggering, reduces losses and eliminates shoot-through current.

One of the most interesting features of this device is the Smartsense™ or Triple Mode Protection. This protection feature helps keep the load in balance and prevent overloading, underloading, and overheating. It uses a combination of voltage and current sensing to monitor the current passing through the switches, and can shut down the power switch if needed. This helps ensure the long-term reliability of the system and reduces maintenance time.

Another important feature of this device is the integrated Thermal Shutdown Protection. This designed to protect the power switch from thermal over-stress events. When the temperature of the device exceeds the predetermined level, the thermal protection circuit shuts off the power switch and prevents it from heating up further. This helps protect the device from electrical breakdowns.

The IRS2128SPBF gate driver is suitable for a wide range of applications, such as motor control, inverters, welding, solar power systems, rectifiers, and UPS. This device can also be used to provide fast and reliable gate driving for IGBTs and power MOSFETs in automotive, industrial and consumer applications.

Overall, the IRS2128SPBF gate driver is a reliable, efficient and cost effective device designed to provide fast switching and a high degree of thermal protection. It\'s the perfect choice for a wide range of applications where high voltages, high currents and fast switching are required. This device is well suited for use in various industrial and consumer applications.

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