Ir2110 Bootstrap problem

Thread Starter

playboy123

Joined Dec 21, 2008
4
Ir2110 Bootstrap problem, IR2110 not worrking Properly, IR2110 High side problem
Hi, i will be Much Much Obliged if someone can Help me, i am Really Sucked up Using IR2110, as i don't know any other available msft Driver in market here,

Issue
1) Main issue Bootstrap doent start working when The Vcc is below 21 Volts, i.e High Side start working When the Vcc is Greater than 21 Volts :'( Bootstrap Diode tested 1n5819, Byv26, Byv27, Fr107, FR106, FuF106, 1n4007, Tested many Boot capacitors too

2) The output at Ho is not Pure square wave it has slop at top, and its not straight line
There is some noise present also :(

i used ferrite beeds(b/w driver and Mos Gate) to remove noise there is lot of improvement but not completely removed
Waveform pics are Attached please help me if u anyone can Please read Note Written at ever Wave form

Attachment 105837
Attachment 105838
Attachment 105839
Attachment 105840
Attachment 105841
Attachment 105842
Attachment 105843
Attachment 105844
Attachment 105845
Attachment 105846
 

Thread Starter

playboy123

Joined Dec 21, 2008
4
You must have obtained some couterfeit fakes of the IR2110.

This is like one of the most easy ic's to use next to the NE555 timer ic.

Never had a problem, always worked first try every time.
 
Top