TLC5922 Datasheet, PDF (12/16 Pages) Texas Instruments – LED DRIVER

TLC5922
SLVS486 – SEPTEMBER 2003
www.ti.com
PRINCIPLES OF OPERATION (continued)
Power Rating - Free-Air Temperature
Figure 11 shows total power dissipation. Figure 12 shows supply current versus free-air temperature.
Power Dissipation
vs
Temperature
3.9
3.2
2
1.48
−20
0
25
85
T_A − Free-Air Temperature − °C
Figure 11
Supply Current¹
vs
Free-Air Temperature
70
60
50
40
30
20
10
0
−50 −30 −10 10 30 50 70 90 110 130 150
T_A − Free-Air Temperature − °C
1. Data Transfer = 30 MHz / All Outputs, ON/V_O = 1 V / R_IREF = 600 Ω / AV_DD = 5 V
Figure 12
12