Suggestion for Soldering TSSOP Components - Page 1
Forum section: electronics / projects

author: remixed123
author_rank: Regular Contributor
timestamp: November 18, 2013, 01:25:37 am
content: Ok, so I got my self a TSSOP to DIP adapter like this one -http://www.futurlec.com.au/images/8PINTSSOP.jpgAnd I have an IC that is a TSSOP package....it is an audio amplifier from TI.I need to solder the TSSOP amplifier onto the TSSOP to DIP adapter. How do I do this?Are there any special tools I can purchase to help with this?Are there any special techniques that I can employ to do this?For those of you unfamiliar with TSSOP, it is smaller than SOIC (1/2 to 2/3 the size).

author: angst7
author_rank: Contributor
timestamp: November 18, 2013, 01:33:39 am
content: There are a number of ways to do this. The simplest, requiring the least practice, is to carefully line up the pads, tack down the corners, then solder the rest not worrying about over-applying solder. Next apply some solder flux, and use solder wick to clean up the excess. I do it all the time on 64 pin TQFP stuff.

author: Psi
author_rank: Super Contributor
timestamp: November 18, 2013, 01:34:04 am
content: Quote from: remixed123 on November 18, 2013, 01:25:37 amTools:- A soldering iron with a good tip. The tip should be small enough so you can touch one pad without touching the others, but no smaller than that. Ultra small tips are hard to use.- Small solder 0.3mm is good.- Some tweezers or other tool to move the chip around and hold it in the right spot.- Liquid or gel flux- Good quality solder wick (chemtronics)Techniques:- Add flux to the pcb pads (optional if the PCB and IC are clean and brand new, but it still helps)- Hold the chip in the right place with a tool. Add a tiny bit of solder to the iron tip and then touch the iron to one of the corner legs of the IC. This should solder that leg so the chip wont move around.- Repeat this process on all legs.- Done.- If you slip with the iron and bridge two of the pads just put some solder wick on top then gently push down with the iron on top of the wick. It will remove all the solder. (you may need to add a little solder to the iron first to get things moving)If you cant get your eyes to focus close enough to the PCB to see what you're doing then buy some reading glasses, or ideally, a desk mount magnification lamp

author: andtfoot
author_rank: Unknown
timestamp: November 18, 2013, 01:39:40 am
content: Some sort of magnification is pretty helpful when checking for solder bridges.Edit: I found the technique at 23:45 easiest for me.

author: wraper
author_rank: Unknown
timestamp: November 18, 2013, 01:46:19 am
content: More suitable for high pin count. Watch first video from 2:30. No special tools needed basically (solder wave tips may work better). Just fix pins on the corners and then solder. Works best with tacky flux. You can also solder each pin individually using very small tip and solder wire (~0,25mm) but magnification is essential then.

author: nctnico
author_rank: Super Contributor
timestamp: November 18, 2013, 01:49:06 am
content: The key is to use extra flux and set the soldering iron to 330 degrees Celsius. Don't try to solder each pin but solder 2 or 3 pins at the same time using a big tip.

author: remixed123
author_rank: Regular Contributor
timestamp: November 18, 2013, 05:39:45 am
content: Thanks everyone for your suggestions!