MAX6975 Maxim Integrated Products, MAX6975 Datasheet - Page 12
MAX6975
Manufacturer Part Number
MAX6975
Description
(MAX6974 / MAX6975) 24-Output PWM LED Drivers
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX6975.pdf
(23 pages)
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The MAX6974/MAX6975 can double the number of
LEDs driven from 24 to 48 through multiplexing. When
24-Output PWM LED Drivers
for Message Boards
Figure 5. MAX6975 Multiplexing Two Sets of Eight RGB Pixels with a Single LED Supply and Subframe Timing
12
Multiplexed vs. Nonmultiplexed Operation
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multiplexing, the two outputs, MUX0 and MUX1, drive
two external pnp transistors, such as FMMTL717, used
as common-anode power switches (see
Figure
5).