HIP4081AIBT

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The HIP4081AIBT is an integrated gate driver from Intersil. It is a very premium gate driver solution that provides a high-performance, cost-effective alternative for applications such as switching converters, point-of-loads (POLs), and power factor correction (PFC). This drive solution provides a non-overlapping, single-ended, full-bridge power supply driving with 1A peak pulse current, 5mA peak turn-off current, and an adjustable dead-time of up to 400ns with 1n accuracy.

Applications of HIP4081AIBT

The HIP4081AIBT gate driver has a wide range of applications due to its superior electrical performance and cost-effectiveness. This drive solution is ideal for high-speed power converters, point-of-loads, and power factor correction devices. The device is also capable of driving a large variety of MOSFETs, IGBTs, and diode bridge MOSFETs. Additionally, the HIP4081AIBT is also suitable for automotive applications due to its wide operating temperature range from -40°C to +125°C.

This high-performance gate drive solution is also suitable for use in battery powered devices due to its very low supply current of 95uA typical. Additionally, the device offers outstanding features such as under-voltage lock out (UVLO) to protect the system from damage due to a compromised power supply, short-circuit protection, and thermal shutdown to protect the device from overheating.

HIP4081AIBT Working Principle

The HIP4081AIBT gate driver is based on a full-bridge power switch driving topology. It includes two independent driver outputs that are capable of driving one low-side and one high-side switch. The device operates by enabling a single-ended input signal, which is used to drive low-side and high-side switches. The driver outputs can be used to control two switches in parallel, providing a higher current capacity.

The device includes a variety of protection features to protect the system from damage due to over-current, short-circuit, and overheating. Additionally, the gate driver also produces a precise adjustable dead-time of up to 400ns with an accuracy of 1n. This feature helps to reduce ringing in the system and prevent damage due to simultaneous switching of both of the high- and low-side switches, respectively.

The HIP4081AIBT gate driver also features a very low quiescent current of 95uA typical, making it suitable to be used in battery powered applications. The device also features a low propagation delay of 8ns typical and peak turn-off current of 5mA, which helps to reduce overshoot and reduce noise.

Conclusion

The HIP4081AIBT is an integrated gate driver solution from Intersil that provides a high-performance, cost-effective alternative for applications such as switching converters, point-of-loads, and power factor correction devices. This drive solution offers excellent electrical performance, wide operating temperature range, low quiescent current and adjustable dead-time of up to 400ns with an accuracy of 1n. This makes the HIP4081AIBT gate driver an ideal solution for a large range of applications in automotive, battery-powered, and high-speed switching applications.

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