LTV-3120

Isolators - Gate Drivers Overview

The LTV-3120 is a single-channel optical gate driver from Lite-On Inc. designed for driving power IGBTs, MOSFETs, and SiC devices. It features 5000Vrms isolation voltage and 15kV/µs common mode transient immunity. The device provides 2.5A peak source/sink output current with a supply voltage range of 15V to 30V. Key electrical parameters include a maximum propagation delay of 400ns, pulse width distortion of 120ns, and a typical forward voltage of 1.37V at a maximum DC forward current of 25mA. Operating temperature ranges from -40°C to 105°C.

Isolators - Gate Drivers Feature Summary

• Provides high common mode transient immunity for reliable signal transmission in noisy environments
• Delivers rail-to-rail output capability suitable for direct drive of power switches
• Offers low propagation delay and minimal pulse width distortion for precise timing control

Isolators - Gate Drivers Applications

• Motor control inverter applications
• Industrial power supplies
• Photovoltaic inverters
• On-board chargers for electric vehicles

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix (e.g., S-TA1) against the manufacturer's official datasheet to confirm package type and reel specifications. Ensure the procurement channel provides valid traceability documentation. Confirm that the component meets required safety certifications such as UL, CUL, VDE, or IEC standards for the intended application environment.

Isolators - Gate Drivers Selection Notes

Select this component when high isolation voltage and robust noise immunity are critical for gate drive circuits. The 2.5A output current is sufficient for many medium-power IGBT and MOSFET applications. Consider the operating temperature range and isolation requirements compared to digital isolators if size constraints are primary.

Isolators - Gate Drivers Part Context

The LTV-3120 belongs to the LTV-3120 series of photocouplers manufactured by Lite-On Inc. These devices are categorized as opto-isolated gate drivers. The series is designed to replace traditional transformer-based gate drives in terms of isolation while offering easier integration into PCB layouts.

Isolators - Gate Drivers Replacement Considerations

Potential substitutes include ADUM242E0BRWZ, ADUM241D1BRWZ, and IL3685E. Verify pinout compatibility and electrical parameter equivalence before substitution.