moose001 Posted February 22 Report Share Posted February 22 Hi Can anyone identify this 6pin PWM controller? its on a (non-working) Black&Decker 18V Li-ion charger. thanks in advance. Quote Link to comment Share on other sites More sharing options...
HarryA Posted February 22 Report Share Posted February 22 That is most likely an internal factory number. Remember they do not want you to repair them but to buy new ones. There are a number of videos on youtube in regard to chargers. Search on " Black&Decker 18V Li-ion charger " for example: https://www.youtube.com/watch?v=c-pTziUV1as Quote Link to comment Share on other sites More sharing options...
bidrohini Posted March 2 Report Share Posted March 2 On 2/23/2023 at 2:56 AM, HarryA said: That is most likely an internal factory number. Remember they do not want you to repair them but to buy new ones. There are a number of videos on youtube in regard to chargers. Search on " Black&Decker 18V Li-ion charger " for example: https://www.youtube.com/watch?v=c-pTziUV1as I think you are right. Because I never came across such a strange marking on ICs before. Quote Link to comment Share on other sites More sharing options...
moose001 Posted March 2 Author Report Share Posted March 2 well..actually..i was told that it is a richtek R7731A. i was directed to these sites.... http://www.smdmark.com/en-US/search/code?id=dp%3D and https://www.s-manuals.com/smd From their datasheet the marking is really idp=W where W is a date code. chopper r7731a_richtek.pdf Quote Link to comment Share on other sites More sharing options...
login
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.