3.3.2.1 Sink Driver
Each output port is equipped with two sink driver chips of type
ULN2803; detailed specifications see page 29.
The maximum current per output (I
C
= I
Sink
) depend on the satura-
tion voltage U
CE
and is limited by the power loss of the sum of the
channels on P
tot
= 1
W per chip (DO_0…7 = chip 1, DO_8…15 =
chip 2), see Diagram 6 and Diagram 7.
P
tot
= P
0
+ …+P
7
≤
1 W (per chip at 70 °C)
with P
0
= I
CO
x U
CE0
Summary of Contents for ME-5004
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