FOD3150S

Isolators - Gate Drivers Overview

The FOD3150S is a high noise immunity gate drive optocoupler with a 1.0 A output current capability, designed to drive most 800 V / 20 A IGBTs and MOSFETs. It features a 5000 Vrms isolation voltage and operates within an extended industrial temperature range of -40°C to +100°C. The device offers fast switching performance with a maximum propagation delay of 500 ns and a maximum pulse width distortion of 300 ns. It utilizes P-channel MOSFETs at the output stage for voltage swing close to the supply rail and includes under-voltage lockout (UVLO) with hysteresis.

Isolators - Gate Drivers Feature Summary

• High noise immunity characterized by a minimum common mode rejection of 20kV/µs
• Output stage uses P-channel MOSFETs to enable voltage swing close to the supply rail
• Includes under-voltage lockout (UVLO) with hysteresis for reliable operation
• Capable of driving power IGBTs and MOSFETs in fast switching applications

Isolators - Gate Drivers Applications

• Industrial inverter systems
• Uninterruptible power supplies (UPS)
• Induction heating equipment
• Isolated IGBT and power MOSFET gate drive circuits

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'S' indicates the surface mount or specific packaging variant as defined by onsemi/Fairchild documentation. Confirm that the 5000 Vrms insulation rating aligns with safety standards such as UL1577 and IEC60747-5-2 for the intended application environment. Ensure the operating temperature range meets the thermal requirements of the final assembly.

Isolators - Gate Drivers Selection Notes

Select this component when driving high-power IGBTs or MOSFETs requiring robust noise immunity and fast switching speeds. The 1.0 A output current is sufficient for most standard power devices up to 800 V. Consider the wide supply voltage range of 15 V to 30 V for compatibility with various gate drive power rails. The UVLO feature adds protection against incomplete turn-on during low supply conditions.

Isolators - Gate Drivers Part Context

The FOD3150S belongs to the FOD3150 series of gate drive optocouplers manufactured by Fairchild Semiconductor, now part of onsemi. This series is engineered for high-performance power systems where electrical isolation between control and power stages is critical. The device replaces traditional transformers in switch-mode power supplies, offering simpler circuit design and DC coupling capability while maintaining high reliability in industrial environments.

Isolators - Gate Drivers Replacement Considerations

Public confirmed substitute part numbers include FOD3150SDV, FOD3150SV, FOD3150TV, FOD3150V, FOD3150, and FOD3150SD. Verify pinout compatibility and package type differences when substituting between through-hole and surface mount variants.