What this driver is and where it fits
The Infineon IR2127SPBF is a single-channel gate driver that can be configured for either high-side or low-side drive of an IGBT or N-Channel MOSFET. It runs on a 12V to 20V supply and includes a bootstrap diode rated to 600 V, so it can directly drive the high-side switch in a half-bridge leg up to that rail voltage. The 250 mA source / 500 mA sink peak output is sized for medium-power IGBTs and MOSFETs in motor drives, switch-mode power supplies, and PFC stages. The -40°C to 150°C junction temperature range qualifies it for industrial and automotive under-hood environments where the PCB sees sustained heat.
Peak output current and switching speed
Peak output is 250 mA source and 500 mA sink. Typical rise and fall times are 80 ns and 40 ns.
Bootstrap voltage ceiling and supply range
The 600 V maximum high-side voltage (bootstrap) sets the bus voltage limit. Supply range is 12V to 20V; logic thresholds are 0.8 V low and 3 V high.
Package and mounting
Housed in an 8-SOIC (0.154", 3.90 mm width) surface-mount package, the IR2127SPBF fits standard pick-and-place assembly. The tube shipping medium is typical for engineering samples and small-batch production; larger volumes are commonly ordered on tape and reel. The single driver channel leaves the adjacent SOIC pins available for routing the bootstrap diode and decoupling capacitor close to the IC.
Lifecycle and sourcing note
Listed as Active with ROHS3 compliance. No last-time-buy notice or successor has been issued, so the part is still in normal production and available through standard distribution. For a BOM line that needs this exact driver, the supply channel is open — no urgency to qualify a substitute.