Right_Then
New Member
Dear Fellows,
i am having trouble getting the output on the HO pin of this device. i am using arbitrary components to test this IC but to no avail.
Few clarifications required are as such please
1) For low-side the power supply`s positive is supposed to be connected to the Vcc (pin no 3)
then would it be okay to connect the negative of that supply to COM (pin number 2).
2) For IC power i am connecting +ve to (Pin 9) Vdd and -ve to (Pin 13) Vss.
3) i am assuming that internally the IC itself isolates these two supplies so grounds of these
two supplies dont become one but remain separated is that true? if that is not the case then
did the scheme presented in the datasheet is actually referring to the same supply but at two
places to avoid drawing extra lines.
4) Signals supplied to Pins 10,11,12 (HIN,SD,LIN) from micro-controller side need not be isolated
with Optocoupler since this side of IC is internally isolated anyway from the High and low side
supplies?? is that correct assumption?
the scheme that is given in the datasheet. i etched it. that scheme and the one presented in the datasheet is provided as attachments. Please have a look if i interpreted it correctly or not.
Thanks
Regards
i am having trouble getting the output on the HO pin of this device. i am using arbitrary components to test this IC but to no avail.
Few clarifications required are as such please
1) For low-side the power supply`s positive is supposed to be connected to the Vcc (pin no 3)
then would it be okay to connect the negative of that supply to COM (pin number 2).
2) For IC power i am connecting +ve to (Pin 9) Vdd and -ve to (Pin 13) Vss.
3) i am assuming that internally the IC itself isolates these two supplies so grounds of these
two supplies dont become one but remain separated is that true? if that is not the case then
did the scheme presented in the datasheet is actually referring to the same supply but at two
places to avoid drawing extra lines.
4) Signals supplied to Pins 10,11,12 (HIN,SD,LIN) from micro-controller side need not be isolated
with Optocoupler since this side of IC is internally isolated anyway from the High and low side
supplies?? is that correct assumption?
the scheme that is given in the datasheet. i etched it. that scheme and the one presented in the datasheet is provided as attachments. Please have a look if i interpreted it correctly or not.
Thanks
Regards