[ 3 / biz / cgl / ck / diy / fa / ic / jp / lit / sci / vr / vt ] [ index / top / reports ] [ become a patron ] [ status ]
2023-11: Warosu is now out of extended maintenance.

/diy/ - Do It Yourself

Search:


View post   

>> No.1730945 [View]
File: 10 KB, 211x246, 1469732361735.png [View same] [iqdb] [saucenao] [google]
1730945

Making a single-sell LiPo cutoff protection circuit with DW01 + 8205A, and just ate a bag of dicks

DW01 has a (((feature))) that when your battery is disconnected if won't turn the shit off until you either

1) charge the thing for a bit (I don't even have a changer since batteries are to be charged before inserting into the device), or
2) short GND and CELL-

https://www.eevblog.com/forum/projects/pain-and-suffering-getting-the-dw01-and-8205a-protection-circuit-work-right/
https://www.eevblog.com/forum/projects/dw01-g-battery-protection-ic-issues/

That means I can not just blindly add a switch to cut the whole god damn battery because it will enter in the limbo state. I have to redesign the circuit to instead disconnect the EN pin of my LDO. Also I have to add a fucking button which you are supposed to press when you have switched the battery.

The PCBs are already manufactured, took a fucking month. Now I have to either hack like 10 of PCBs or rebuild fucking everything.

Legit wanna kill myself.

Navigation
View posts[+24][+48][+96]