I am looking for transistor arrays for my LED projects as I want to reduce number of components on board. After some searches, I have found that there are two candidates for current source and sink transistor arrays as the following:
UDN2981 : 8 channels high current source MAX 500mA
![UDN2981 : 8 channels high current source](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh3JAMX28uI6XgokST8u7spWui6PuPUtQn3N1ruVCyuVzZK1SWqMIHe5vMrXj4_XMfdYPXgfyzU_wTTg8diyUGo2kStdGMTsMzj77JXyM_6oMOLFuZp8yPIL4LNFTwEme8mA5eC6kciOVe8/s400/udn2981.png)
ULN2003 : 7 channels high current sink MAX 500mA
![ULN2003 : 7 channels high current sink](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgAcjsXrMhMgyYGWN9nEnOx1ji5zZKe54jB2llYdm-n9SDVNqwC4PMOZV_O1E_PWzaJdF4GWI2jKstZ_KE3n33FbgaOnAPV4jlvXLcbAsLegJVwqmd4NiSeS61SKX6zq0A4jzDwQZcvT25t/s400/uln2003.png)
I will use these transistor arrays for driving large 7-segment display panel , bright led dot matrix panel and other LED projects.
UDN2981 : 8 channels high current source MAX 500mA
![UDN2981 : 8 channels high current source](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh3JAMX28uI6XgokST8u7spWui6PuPUtQn3N1ruVCyuVzZK1SWqMIHe5vMrXj4_XMfdYPXgfyzU_wTTg8diyUGo2kStdGMTsMzj77JXyM_6oMOLFuZp8yPIL4LNFTwEme8mA5eC6kciOVe8/s400/udn2981.png)
ULN2003 : 7 channels high current sink MAX 500mA
![ULN2003 : 7 channels high current sink](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgAcjsXrMhMgyYGWN9nEnOx1ji5zZKe54jB2llYdm-n9SDVNqwC4PMOZV_O1E_PWzaJdF4GWI2jKstZ_KE3n33FbgaOnAPV4jlvXLcbAsLegJVwqmd4NiSeS61SKX6zq0A4jzDwQZcvT25t/s400/uln2003.png)
I will use these transistor arrays for driving large 7-segment display panel , bright led dot matrix panel and other LED projects.
Tag :
Electronics
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