HIP4081AIP

Full Half-Bridge (H Bridge) Drivers Overview

The HIP4081AIP is a high-frequency, medium-voltage Full Bridge N-Channel FET driver IC manufactured by Harris Corporation. It is available in a 20-lead plastic DIP package and is designed to drive every possible switch combination except those causing shoot-through conditions. The device supports switching frequencies up to 1MHz and features independently driven N-channel FETs in half-bridge or full-bridge configurations. Key internal components include an on-chip charge pump and bootstrap upper bias supplies, with a maximum bootstrap supply voltage of 95VDC.

Full Half-Bridge (H Bridge) Drivers Feature Summary

• Independently drives four N-channel FETs in half-bridge or full-bridge configurations
• Supports switching frequencies up to 1MHz with typical rise and fall times of 10ns for a 1000pF load
• Includes user-programmable dead time and on-chip charge-pump and bootstrap upper bias supplies
• Features DIS (Disable) input that overrides control signals and provides undervoltage protection

Full Half-Bridge (H Bridge) Drivers Applications

• Medium and large voice coil motors
• Full bridge power supplies
• High-performance motor controls
• Switching power amplifiers

Full Half-Bridge (H Bridge) Drivers Procurement Notes

Verify the manufacturer designation carefully, as Renesas Electronics Corporation has acquired Intersil assets. Confirm the specific suffix 'IP' corresponds to the PDIP-20 package variant. Check RoHS compliance status, as original Harris/Intersil versions may be non-compliant compared to newer Renesas equivalents like the HIP4081AIBZ. Ensure the component meets lead-free requirements if mandated by your project specifications.

Full Half-Bridge (H Bridge) Drivers Selection Notes

Select this component when driving N-channel MOSFETs in H-bridge topologies requiring high-speed switching up to 1MHz. It is suitable for applications needing independent low-side and high-side drive channels with programmable dead time to prevent cross-conduction. Consider the 95VDC bootstrap limit and logic compatibility with 5V to 15V inputs when designing the gate drive circuitry.

Full Half-Bridge (H Bridge) Drivers Part Context

The HIP4081A belongs to the Intersil/Harris family of high-frequency FET drivers. It is functionally similar to the HIP4082 but offers higher peak current capability and operates in a 20-pin package compared to the HIP4082's 16-pin configuration. This series is widely used in motion control and power conversion systems where precise timing and high efficiency are critical.

Full Half-Bridge (H Bridge) Drivers Replacement Considerations

• HIP4081AIBZ

Full Half-Bridge (H Bridge) Drivers FAQ

What is the maximum voltage supported by the bootstrap supply?

The bootstrap supply can handle a maximum voltage of 95VDC.

How does the device prevent shoot-through conditions?

It includes user-programmable dead time settings and a DIS (Disable) input that overrides all other inputs to ensure safe switching states.