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ArcticMyst Security by Avery

Question on Lazeerer nano buck/boost

Joined
Jun 14, 2017
Messages
452
Points
63
As you all are aware, nano drivers are nonexistent. I damaged (crushed corner) the inductor on my last nano driver😩😭. She dead.
Do any of you guys know the value of this driver’s inductor? I’d hate to lose this driver over this. Thanks in advance guys.
SGD🥃
 
Last edited:





Giannis_TDM

Well-known member
Joined
Apr 27, 2019
Messages
895
Points
93
As you all are aware, nano drivers are nonexistent. I damaged (crushed corner) the inductor on my last nano driver😩😭. She dead.
Do any of you guys know the value of this driver’s inductor? I’d hate to lose this driver over this. Thanks in advance guys.
SGD🥃
Send over a pic, I think one of the spare 4.7uH ones from Panasonic I have for my 1A boosts will do the trick. Take some dimensions and send em over ill see what fits best.
 
Joined
Jun 14, 2017
Messages
452
Points
63
Here are a couple pics; one of mine and one from DTRs page: it looks like a sort of A and maybe a 7...? Not your typical 3R3, 4R7, 220 (3.3, 4.7, 22uH) so beats me. Lemme know what you think. Thx for help.
SGD
 

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Joined
Jun 14, 2017
Messages
452
Points
63
Welp, Lifetime17 sent me a couple dead nanos. I unsoldered the inductors, and soldered one of each to my busted driver. Sadly, I was not able to derive any current from the driver; only, the inductor and current setting resistors got really hot. The ohms of the resistors seem to be fine. I also checked the caps, too. Maybe the IC was damaged and current has nowhere to go🤷‍♂️
Thanks again, Rich! It was worth a shot.
SGD
 

Giannis_TDM

Well-known member
Joined
Apr 27, 2019
Messages
895
Points
93
Welp, Lifetime17 sent me a couple dead nanos. I unsoldered the inductors, and soldered one of each to my busted driver. Sadly, I was not able to derive any current from the driver; only, the inductor and current setting resistors got really hot. The ohms of the resistors seem to be fine. I also checked the caps, too. Maybe the IC was damaged and current has nowhere to go🤷‍♂️
Thanks again, Rich! It was worth a shot.
SGD
Most likely the internal fet switch in the IC blew up itself because the inductor lost a lot of its inductance and even short-circuited.
 




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