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PMIC - Gate Drivers

The ISL89163FBECZ-T is an integrated circuit designed for use as a gate driver in central processing units (CPU) and power management integrated circuit (PMIC) applications. It provides a gate drive solution suitable for high-performance gate switching. The device includes power FET protection and various gate driving functions, such as slew rate control, timing and source/sink current protection. It is typically used to control power FETs and IGBTs, such as those found in DC-DC converters, industrial, automotive and server applications.

The chip integrates a low-side driver, high-side driver and reverse-protector (clamp diode) onto a single chip package. It has an integrated supply voltage range of 4.5V to 30V, making it suitable for both low- and high-voltage applications. The low-side driver is configured in a totem-pole architecture, with a turn-off voltage of 2V. The high-side driver is configured in a push-pull architecture, and has an adjustable turn-on voltage of up to 30V. It also supports slew rate control for controlling the speed of the gate voltage change, and a programmable source/sink current protection of up to 200mA.

Application Fields

The ISL89163FBECZ-T device is suitable for various applications that require a gate driving solution. These applications include:

• DC-DC Converters
• Processor-based Power Supplies
• Laptop, Workstation and Server Power Supplies
• Automotive Power Supplies
• Industrial Automation

Working Principle

The ISL89163FBECZ-T is a versatile gate driver that can be used to drive gate signals for high-performance switching applications. The device integrates a low-side driver, high-side driver and reverse-protector (clamp diode) onto a single chip package, thereby reducing board space and cost. The chip uses a totem-pole architecture for its low-side driver, which allows for a turn-off voltage of 2V, and a push-pull architecture for its high-side driver, which allows for an adjustable turn-on voltage of up to 30V. It also includes slew rate control, which allows the speed at which the gate voltage is changed to be controlled, as well as source/sink current protection with a programmable limit of up to 200mA.

In addition, the device is designed with thermal protection, where it will automatically shut down if the junction temperature exceeds 150°C. This is used to protect the device from overheating and ensures safe operation.

Conclusion

The ISL89163FBECZ-T is a gate driver suitable for use in high-performance switching applications. It has an integrated supply voltage range of 4.5V to 30V and provides various functions, such as slew rate control, timing and source/sink current protection. Its integrated thermal protection also allows for safe operation. This device is ideal for use in DC-DC converters, processor-based power supplies, laptop, workstation and server power supplies, automotive power supplies, and industrial automation.

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