Hi TI Team,
For the LM2734 Vfb voltage, as you can see, the Vfb reference is from 0.784V to 0.816V If Tj from -40degC to 125degC. I believe that this tolerance (0.784V ~0.816V) includes initial tolerance and temperature variation.
For a specific part, for example, if the Vfb is 0.801V at Tj=25degC, what Vfb would be if Tj=-40degC and Tj=125degC ? Can we refer to the chart shown in Table.2 for Vfb temperature variation?
Table.2 shows that Vfb changes only 4mV (0.802-0.798V=4mV) variation if Vfb temperature changes from -40degC to 125degC?
The reason we asked this question is that the initial tolerance (normally in 25degC) can usually be eliminated by calibration, but the for the temperature variation, it can not be calibrated. So we need to know the tolerance caused by the temperature variation.
Table.1 LM2734 tolerance
Table.2 Vfb variation vs temperature
