Pages: [1]   Go Down
Author Topic: uln... darlingtons  (Read 330 times)
0 Members and 1 Guest are viewing this topic.
Offline Offline
Edison Member
*
Karma: 29
Posts: 2350
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

i'm on my phone and its a job and half looking through a ton of datasheets on here...


what's the most powerful (current not voltage) version of the chip that can be bought (sinking 14-15v MAX)


cheers smiley
Logged

Eindhoven Netherlands
Offline Offline
Jr. Member
**
Karma: 2
Posts: 57
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

How much do you need?
Logged

0
Offline Offline
Shannon Member
****
Karma: 199
Posts: 11649
Arduino rocks
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

You'll need to find the newer MOSFET versions of that chip - all darlingtons are heat-dissipation limited in a DIP package,
so unless you can find a version with a metal heat slug they are all basically the same.

I'd avoid darlingtons these days, they were a good solution to high-current switches in the 70's, but MOSFETs are generally
superior and widely available now (but unfortunately mainly in SMT packaging).  As I said I know there are a few MOSFET
based ULN2803 replacements thesedays, can't remember the part number.
Logged

[ I won't respond to messages, use the forum please ]

Pages: [1]   Go Up
Jump to: