I have designed a gate driver card wherein I have tied the FLT signal together for HS and LS driver ICs. I aim to drive an inverter using three such driver cards (one driver card with 2 driver ICs, HS and LS drive one H-bridge of the inverter). I observe that during the operation, When VCC is sourced at 3.3V, the FLT always shows a reading of 2.3V (whereas the RDY, PWMs, and Vcc read as 3.3V). Even if I remove either the LS or HS driver ICs in order to take a reading of FLT signal, it still shows 2.3V. I have tied up the FLT with a 5k ohm resistor. When I replace the pull up with 10k ohms, it falls to 2.06V. Is it the pull up resistor causing such a large voltage drop or is the IC itself?