Re: [opendiag] dashboard leds

From: Zapotec <zapotec@...>
Date: Sat Sep 24 2005 - 10:30:22 CEST

They (in dashboard) often use a group of TPIC595 (TI). This are latchable
shift register with 500mA output power stage. With three wire from uP (Data,
Clock, Load) they can drive (cascading more TPIC595) a very large number of
leds

Regards
Zapo

--------- Original Message --------
Da: opendiag@yahoogroups.com
To: \"opendiag@yahoogroups.com\" <opendiag@yahoogroups.com>
Oggetto: [opendiag] dashboard leds
Data: 23/09/05 19:05

hi,

i find that those leds on dashboards are usually power leds with
current rating within 20mA-100mA, which is too high for an MCU to drive
directly.
i wish to know if there is any often-used driver ic/components to drive
these leds..

any suggestion?

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Received on Sat Sep 24 01:30:24 2005