Pinecil V2 went dead

[Wapssy1]

i what can I do to pinecil V2 that just went dead, after the temperature of the soldering got too high that the bit turned red

[Ralim]

Hia,
You will likely get faster response times in the chat rooms for the pinecil.

Generally this means that something killed the output control MOSFET for the tip to go red. If you remove the tip does the device power up ?

[Wapssy1]

No , it fails to on the screen, the bit just get hot.

…

On Wed, Oct 23, 2024, 8:58 PM Ben V. Brown ***@***.***> wrote: Hia, You will likely get faster response times in the chat rooms for the pinecil. Generally this means that something killed the output control MOSFET for the tip to go red. If you remove the tip does the device power up ? — Reply to this email directly, view it on GitHub <#1987 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/BMLZ5PMSR3BFLJ2VH4GXVY3Z475UVAVCNFSM6AAAAABQPSC22CVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTCMBTGM2DKMI> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[Ralim]

I'm not sure what you mean by "it fails to on the screen".
Do you mean that the screen works but the bit just gets hot when its inserted? If so that is indicative of a broken output MOSFET

[iLLiac4]

100% sure it is shorted mosfet have already replaced few on TS100. Maybe the tip got bad and there is no resistance between the terminals and caused the mosfet to blow. AFAIR it should be around 10 ohm. If the tip is shorted then trash it and replace the mosfet.

This is form the net:

HSM4313 is dual p-channel mosfet, 40v max Vds , Rds(on) 45mOhm (lower is better) , Current 6.5A (4.7A continuously) (higher is better)

This one is SOP-8 , 5mm x 4 mm - SOIC-8 will be most likely compatible size wise, but you'll want to double check
If you're gonna use voltages 20v or less, 30v rated mosfets would probably be fine.

DMP4025 max 40v, 25 mOhm, 7.6A (not recommended for new designs, may not be available in the future): https://www.digikey.com/en/products/detail/diodes-incorporated/DMP4025LSD-13/3678208
SH8JB5TB1 max 40v , 15 mOhm, 8.5A : https://www.digikey.com/en/products/detail/rohm-semiconductor/SH8JB5TB1/13687917
SH8JC5TB1 max 60v , 32 mOhm, 7.5A : https://www.digikey.com/en/products/detail/rohm-semiconductor/SH8JC5TB1/13687898
G200P04S2 40v , 20mA, 9A, : https://www.digikey.com/en/products/detail/goford-semiconductor/G200P04S2/17110013
IRF9362 max 30v, 21mOhm , 8A (6.4A) : https://www.digikey.com/en/products/detail/infineon-technologies/IRF9362TRPBF/2354082
IRF9358 max 30v, 21mOhm , 9.2A (7.3A) : https://www.digikey.com/en/products/detail/infineon-technologies/IRF9358TRPBF/2605713
Some SOIC-8 packages that may work (double check footprint in datasheet) : https://www.digikey.com/short/h54q3040

From all of these you may want to pick one that has closest gate capacitance and other parameters closer to your original mosfet

[Wapssy1]

What I mean is that after the bit got hot to that extent, I unplugged it, so since then wherever it's connected to voltage source, the screen fails to come up, but the bit is hot

…

On Thu, Oct 24, 2024, 5:33 AM iLLiac4 ***@***.***> wrote: 100% sure it is shorted mosfet have already replaced few on TS100. Maybe the tip got bad and there is no resistance between the terminals and caused the mosfet to blow. AFAIR it should be around 10 ohm. If the tip is shorted then trash it and replace the mosfet. This is form the net: HSM4313 is dual p-channel mosfet, 40v max Vds , Rds(on) 45mOhm (lower is better) , Current 6.5A (4.7A continuously) (higher is better) This one is SOP-8 , 5mm x 4 mm - SOIC-8 will be most likely compatible size wise, but you'll want to double check If you're gonna use voltages 20v or less, 30v rated mosfets would probably be fine. DMP4025 max 40v, 25 mOhm, 7.6A (not recommended for new designs, may not be available in the future): https://www.digikey.com/en/products/detail/diodes-incorporated/DMP4025LSD-13/3678208 SH8JB5TB1 max 40v , 15 mOhm, 8.5A : https://www.digikey.com/en/products/detail/rohm-semiconductor/SH8JB5TB1/13687917 SH8JC5TB1 max 60v , 32 mOhm, 7.5A : https://www.digikey.com/en/products/detail/rohm-semiconductor/SH8JC5TB1/13687898 G200P04S2 40v , 20mA, 9A, : https://www.digikey.com/en/products/detail/goford-semiconductor/G200P04S2/17110013 IRF9362 max 30v, 21mOhm , 8A (6.4A) : https://www.digikey.com/en/products/detail/infineon-technologies/IRF9362TRPBF/2354082 IRF9358 max 30v, 21mOhm , 9.2A (7.3A) : https://www.digikey.com/en/products/detail/infineon-technologies/IRF9358TRPBF/2605713 Some SOIC-8 packages that may work (double check footprint in datasheet) : https://www.digikey.com/short/h54q3040 From all of these you may want to pick one that has closest gate capacitance and other parameters closer to your original mosfet — Reply to this email directly, view it on GitHub <#1987 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/BMLZ5PLTLSDUPAEPBZPSYNTZ5B2CXAVCNFSM6AAAAABQPSC22CVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTCMBTGYZDGOI> . You are receiving this because you authored the thread.Message ID: ***@***.***>