HI,
Am designing 7x35 led matrix display for multiplexing using TLC5947,there are 7 rows and 35 columns
each column is connected to the led driver output pin (out0).
in row side i used the series resistor for current limiting and for switching i used the transistor ,
In row scanning the series resistor (R1) get heated,what is the value and power dissipation of the series resistor.
Transistor Q1 is used for switching the rows .
The maximum number of leds connected to the each row is 35.