TLC5916-Q1_16 Datasheet, PDF (27/34 Pages) Texas Instruments – 8-Bit Constant-Current LED Sink Drivers

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10.2.1.3 Application Curve
TLC5916-Q1, TLC5917-Q1
SLVS814A – JANUARY 2008 – REVISED MAY 2015
150
Temperature = 25°C
125
IO = 120 mA
IO = 100 mA
100
IO = 80 mA
75
IO = 60 mA
50
IO = 40 mA
IO = 20 mA
25
IO = 5 mA
0
0
0.5
1
1.5
2
2.5
3
Output Voltage (V)
Figure 21. Output Current vs Output Voltage
10.2.2 Cascading Implementation of TLC591x-Q1 Device
The TLC5917/TLC5917-Q1 Constant-Current LED Sink Drivers is designed to work alone or cascaded. Figure 22
shows a cascaded driver implementation.
VLED
VDD: 3.0V to 5.5V
VDD
SDI
SDO
720
R-EXT
GND
VDD
SDI
SDO
720
R-EXT
GND
VDD
SDI
SDO
720
R-EXT
GND
SDI
CLK
LE
OE
Read back
Multiple Cascaded Drivers
26mA Application
Figure 22. Cascading Implementation of TLC591x-Q1 Device
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