Single-channel low-side driver in 8-SOIC
The Infineon 1ED44176N01FXUMA1 is a single-channel low-side gate driver in an 8-SOIC package, designed to drive IGBTs. The 8-SOIC (0.154", 3.90mm width) footprint is a standard surface-mount outline that routes the gate drive output close to the power device — critical for minimizing the gate-loop inductance that causes ringing at turn-off.
Peak output current is 800 mA source and 1.75 A sink. The asymmetric sink-to-source ratio is intentional for IGBT driving: the higher sink current pulls the gate down fast to clamp the Miller plateau, reducing the turn-off loss and preventing dv/dt-induced turn-on. For a typical IGBT with 100 nC total gate charge, the 1.75 A sink discharges the gate in roughly 60 ns — well within the 50 ns fall time typ. Supply voltage range is 12.7 V to 20 V, covering the standard 15 V gate-drive rail used for most IGBT modules and discrete IGBTs. The undervoltage lockout (UVLO) thresholds are set inside this window — the driver stays disabled until the supply crosses the turn-on threshold, preventing the IGBT from operating in the linear region during startup.