IR21094S

Gate Driver Overview

The IR21094S is a high-voltage, high-speed power MOSFET and IGBT driver featuring dependent high- and low-side referenced output channels. It operates with an input voltage range of 10 V to 20 V and supports a maximum supply voltage of 20 V. The device provides a source current of 0.2 A and a sink current of 0.35 A. Key timing parameters include a rise time of 220 ns, a fall time of 80 ns, an on-state propagation delay of 750 ns, and an off-state propagation delay of 200 ns. It functions within a temperature range of -40°C to 125°C.

Gate Driver Feature Summary

• Features proprietary HVIC technology for high-voltage applications up to 600 V.
• Includes programmable deadtime control to prevent shoot-through in half-bridge configurations.
• Provides independent high-side and low-side drive outputs with functional level-shift isolation.

Gate Driver Applications

• Industrial motor drives
• Power supplies
• Inverter circuits

Gate Driver Procurement Notes

Verify the specific suffix (e.g., STRPBF) against the required packaging format, as standard tape-and-reel options exist alongside SOIC packages. Confirm industrial qualification status if operating in harsh environments. Check current manufacturing status, as some variants may be obsolete or subject to last-time buys. Ensure the selected part number matches the exact pinout and isolation requirements of the target design.

Gate Driver Selection Notes

Select this component for half-bridge topologies requiring robust gate driving for IGBTs or MOSFETs. Consider the 600 V blocking capability and the specific source/sink current limits when sizing external components. Evaluate the need for programmable deadtime to optimize switching efficiency and reliability. Compare against similar drivers like the IR2109 if leaded packages are preferred over surface-mount solutions.

Gate Driver Part Context

The IR21094S belongs to the IR2109 family of high-voltage integrated circuit gate drivers. These devices are designed to drive both N-channel and P-channel power MOSFETs and IGBTs in various power conversion architectures. The series is known for its ability to handle floating channels, making it suitable for high-side switching applications where the load is not grounded.

Gate Driver Replacement Considerations

The IR2109 is a related variant in the same family, often available in PDIP packages. Verify compatibility regarding package dimensions and thermal characteristics when substituting. Ensure that any replacement maintains the same voltage ratings and current drive capabilities to preserve circuit performance.