BUK9K22-80EX Discrete Semiconductor Products

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
FET Type:	2 N-Channel (Dual)
FET Feature:	Logic Level Gate
Drain to Source Voltage (Vdss):	80V
Current - Continuous Drain (Id) @ 25°C:	21A (Ta)
Rds On (Max) @ Id, Vgs:	19 mOhm @ 10A, 10V
Vgs(th) (Max) @ Id:	2.1V @ 1mA
Gate Charge (Qg) (Max) @ Vgs:	23.1nC @ 5V
Input Capacitance (Ciss) (Max) @ Vds:	3115pF @ 25V
Power - Max:	64W
Operating Temperature:	-55°C ~ 175°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	SOT-1205, 8-LFPAK56
Supplier Device Package:	LFPAK56D

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Introduction to BUK9K22-80EX

The BUK9K22-80EX is a high-performance, 9-channel low-side MOSFET array. It is manufactured with advanced low-voltage trench technology and features an integrated, high-voltage anti-overlap protection circuit. The BUK9K22-80EX provides isolated power in a compact form factor and is an ideal solution for a variety of industrial and automotive applications.

Design Overview

The BUK9K22-80EX is designed to provide 9 separate high-current, low-side MOSFET outputs, and features an integrated, high-voltage anti-overlap protection circuit. The array is available in a compact VQFN16 package, allowing for easy integration into existing designs. The BUK9K22-80EX is rated for an operating voltage of up to 80V and includes an in-built thermal shutdown feature for improved system protection.

Application Fields for BUK9K22-80EX

The BUK9K22-80EX is an ideal solution for a variety of industrial and automotive applications, including:

• Automotive engine control
• Peripheral driver ICs
• High-side and low-side gate driver
• Power stage control devices
• General purpose power electronics devices

Working Principle of BUK9K22-80EX

The BUK9K22-80EX utilizes an integrated, high-voltage anti-overlap protection circuit to ensure proper operation. This circuit prevents the built-in transistors from being activated if the gate-source voltage exceeds the safe threshold. The protective circuit is triggered if the gate-source voltage exceeds 80V, and the array will then enter a fail-safe limit state, preventing damage to the device or the circuit.The BUK9K22-80EX also includes a thermal shutdown feature which trips when the die temperature exceeds its preset limit. This feature works in tandem with the integrated anti-overlap protection circuit to ensure safe and reliable operation.

Conclusion

The BUK9K22-80EX is a versatile, high performance 9-channel low-side MOSFET array designed for use in industrial and automotive applications. It is manufactured with advanced low-voltage trench technology and features an integrated, high-voltage anti-overlap protection circuit. Furthermore, its compact VQFN16 package makes it easy to integrate into existing designs.

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