1EDI2002AS_15 Datasheet, PDF (56/147 Pages) Infineon Technologies AG – Single Channel Isolated Driver for Inverter Systems AD Step

EiceDRIVER™ SIL
1EDI2002AS
Functional Description
2.4.10.3 Delay Calibration
In order to compensate for timing errors due to part-to-part variations, a dedicated Timing Calibration Feature
(TCF) has been implemented. The TCF works in such a way that the PWM input signal is used to start and stop
a counter clocked by the Start-Stop Oscillator of the Output Stage. As a result, the following delays and timing can
be configured that way:
• TTOFF delay for Regular Turn-Off.
• TTON delay.
The TCF allows to compensate for part to part variations of the frequency of the Start-Stop oscillator. This results
in better accuracy for application critical timing. Device specific variations, e.g. temperature related, are not
compensated though.
The TCF can be activated or deactivated in Configuration Mode by writing bit field SSCR.VFS2. The device shall
then be set in OPM6 and the PWM signal applied. Details about the TCF operation are given in Chapter 3.5.9.
Datasheet
56
Hardware Description
Rev. 3.1, 2015-07-30