TPIC6B595 IC FOR 2.3 INCH 4 DIGIT 7 SEGMENT DISPLAY

Hi,

Can I use only 2 no.s of TPIC6B595 to drive 4 digit 7 segment display??

I did this with 74HC595 but don't know how to do that with TPIC6B595.

Please suggest me the wiring details.

regards.....

I usually use one TPIC6B595 per digit, with no multiplexing. Is that what you mean?

If it is a 4-digit display with one set of segment lines and 4 unique common anode lines, or 4 unique common cathode lines, then you need to multiplex them (drive one common digit line at a time and the segments to show on that digit).

What kind of display is it? 12 pins? 32 pins? Do you have a datasheet?

sandeep_mbhandari:
Can I use only 2 no.s of TPIC6B595 to drive 4 digit 7 segment display??
I did this with 74HC595 but don't know how to do that with TPIC6B595.

Switch (matrix) the common anodes of the displays on/off with PNP transistors.
You will loose brightness though, because "on time" is shared between displays.
But why would you do that. Those chips are $0.50 on ebay.
Leo..

it is 12 pin common anode display and the datasheet is available @

i want to do the multiflexing using TPIC6B595.

pls guide me…

That links to a small 0.39" (single LED per segment) display, not a 2.3" display.

If you want to use the TPIC6B595 with this already matrixed display, then you can only use ONE, not two.
Use four Arduino pins for the four anodes, and current limiting resistors on the segments.
Leo..

Use four Arduino pins for the four anodes,

No - use Arduino to drive four PNP transistors for the 4 common anodes, as you'll want up to 140mA per digit if the segment current limit resistors are set for 20mA. Datasheet shows Abs Max of 25-30mA continuous.

Yep, should have mentioned that again (did already mention PNP transistors in post#2).
Leo..