Choosing a transistor

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  1. - 1st October 2008, 16:13 #29
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    Quote Originally Posted by rmteo View Post
    If you need more than 1 transistor, for about 0.50c you can get 7 darlingtons (50V/500mA, diodes etc.) in a 16-pin package:
    http://focus.ti.com/docs/prod/folder...uln2003ai.html
    But if you look at Figure 15 of the datasheet, you'll see you're limited to a little over 100mA of collector current across all 7 outputs at 100% duty cycle.
    And besides, he doesn't have 'the room' for a 16PDIP or TO-220's.
    Sounds like it's time for a redesign...
    Last edited by skimask; - 1st October 2008 at 19:11.
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