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Need a ULN2803 like IC for "High Side" driver. Any ideas ? — Parallax Forums

Need a ULN2803 like IC for "High Side" driver. Any ideas ?

BeanBean Posts: 8,129
edited 2006-08-10 14:32 in General Discussion
I need to control the high side of +12volts @ 100mA, from a 0/+5 output pin.
I need to control 8 lines (hopefully with 1 ic).

Any thoughts ?

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Cheap 4-digit LED display with driver IC·www.hc4led.com

Low power SD Data Logger www.sddatalogger.com

"You're braver than you believe, stronger than you seem, and smarter than you think" Christopher Robin to Pooh
·

Comments

  • Bruce BatesBruce Bates Posts: 3,045
    edited 2006-08-09 18:16
    Bean -

    Do you want to contol them en masse, or individually?

    Regards,

    Bruce Bates
  • BeanBean Posts: 8,129
    edited 2006-08-09 18:30
    Individually. Just like the ULN2803.

    Bean.

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    Cheap 4-digit LED display with driver IC·www.hc4led.com

    Low power SD Data Logger www.sddatalogger.com

    "You're braver than you believe, stronger than you seem, and smarter than you think" Christopher Robin to Pooh
    ·
  • Chris SavageChris Savage Parallax Engineering Posts: 14,406
    edited 2006-08-09 23:30
    Bean,

    ·· The L293D that is used on the PDB is a push-pull driver, and can control the high side of the devices, however it only has 4 outputs.· There may be a similar chip, however which can control more outputs.· I hope this helps.

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    Chris Savage
    Parallax Tech Support
    csavage@parallax.com
  • BeanBean Posts: 8,129
    edited 2006-08-10 11:16
    Chris,
    That is close enough...
    Thanks alot.

    Bean.

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    Cheap 4-digit LED display with driver IC·www.hc4led.com

    Low power SD Data Logger www.sddatalogger.com

    "You're braver than you believe, stronger than you seem, and smarter than you think" Christopher Robin to Pooh
    ·
  • Chris SavageChris Savage Parallax Engineering Posts: 14,406
    edited 2006-08-10 14:32
    No problem...You can find example code and connections in the Stamp Works 2 manual on our website.· Take care.

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    Chris Savage
    Parallax Tech Support
    csavage@parallax.com
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