16-Channel, Constant-Current LED Driver with LED Open Detection
16-Channel, Constant-Current LED Driver with LED Open Detection
16-Channel, Constant-Current LED Driver with LED Open Detection
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TLC5928<br />
www.ti.com ................................................................................................................................................. SBVS120A–JULY 2008–REVISED SEPTEMBER 2008<br />
TYPICAL CHARACTERISTICS<br />
At V CC = 3.3 V and T A = +25°C, unless otherwise noted.<br />
100000<br />
REFERENCE RESISTOR<br />
vs OUTPUT CURRENT<br />
4000<br />
POWER DISSIPATION RATE<br />
vs FREE-AIR TEMPERATURE<br />
TLC5928PWP<br />
Reference Resistor ( )<br />
10000<br />
25200<br />
10080<br />
5040<br />
3360<br />
2520<br />
20<strong>16</strong><br />
<strong>16</strong>80<br />
Power Dissipation Rate (mW)<br />
3000<br />
2000<br />
1000<br />
TLC5928DBQ<br />
TLC5928RGE<br />
TLC5928PW<br />
1000<br />
1440<br />
0 5 10 15 20 25 30<br />
0<br />
40 20 0 20 40 60 80<br />
100<br />
Output <strong>Current</strong> (mA)<br />
Free-Air Temperature ( C)<br />
Figure 10. Figure 11.<br />
Output <strong>Current</strong> (mA)<br />
40<br />
35<br />
30<br />
25<br />
20<br />
15<br />
10<br />
5<br />
0<br />
T A = +25C<br />
I = 2 mA<br />
O<br />
OUTPUT CURRENT vs<br />
OUTPUT VOLTAGE<br />
0 0.5 1.0 1.5 2.0 2.5 3.0<br />
Output Voltage (V)<br />
I = 35 mA<br />
O<br />
I = 30 mA<br />
O<br />
I = 20 mA<br />
O<br />
I = 10 mA<br />
O<br />
I = 5 mA<br />
O<br />
Output <strong>Current</strong> (mA)<br />
40<br />
39<br />
38<br />
37<br />
36<br />
35<br />
34<br />
33<br />
32<br />
31<br />
I = 30 mA<br />
O<br />
OUTPUT CURRENT vs<br />
OUTPUT VOLTAGE<br />
30<br />
0 0.5 1.0 1.5 2.0 2.5 3.0<br />
Output Voltage (V)<br />
Figure 12. Figure 13.<br />
T A = 40C<br />
T A = +25C<br />
T A = +85C<br />
4<br />
3<br />
I = 35 mA<br />
O<br />
ΔI OLC vs AMBIENT TEMPERATURE<br />
4<br />
3<br />
T A = +25C<br />
ΔI OLC vs OUTPUT CURRENT<br />
2<br />
2<br />
I OLC (%)<br />
1<br />
0<br />
1<br />
I OLC (%)<br />
1<br />
0<br />
1<br />
2<br />
V CC = 3.3 V<br />
3<br />
V CC = 5 V<br />
4<br />
40 20 0 20 40 60 80 100<br />
Ambient Temperature ( C)<br />
2<br />
V CC = 3.3 V<br />
3<br />
V CC = 5 V<br />
4<br />
0 10 20 30 40<br />
Output <strong>Current</strong> (mA)<br />
Figure 14. Figure 15.<br />
Copyright © 2008, Texas Instruments Incorporated Submit Documentation Feedback 11<br />
Product Folder Link(s): TLC5928
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