Note:
Commercial Product Preview Samples
(see Figure 6-1)
-
By operating the device with input
voltages above 36V the current limit circuit can get shortly turned off during the
SW1 node rising up. This results in a unregulated peak current and oscillations of
the peak current loop.
- By operating the device with output
voltages above 36V the device can turn of the high side switch and restart
- By connecting the ILIMCOMP/ISET pin
to VVC2 to disable the function, the device operation gets unstable due to internal
coupling. To disable the ILIM function the following cases are recommended:
- disabled the current sensor
fully. Pull ILIMCOMP to 4V by dividing VCC2 with 10kΩ and 40kΩ
- IMON enabled (e.g. for CDC) but
ILIM disabled. Pull ILIMCOMP/ISET to GND, do not leave the pin floating
The limitations above are removed for
the prototype material. (see Figure 6-2)
Note: Please refer to the document revision for the summery of the changed to this
document and device description