TCA62746AFG Datasheet, PDF (19/25 Pages) Toshiba Semiconductor – 16-Output Constant Current LED Driver with Output Open/Short Detection

TCA62746AFG/AFNG
Reference data
*This data is provided for reference only. Thorough evaluation and testing should be implemented when
designing your application's mass production design.



Output Current – R_EXT Resistor


50
I_O - R_EXT
45
Theoretical value
I_O (A) = (1.23(V) ÷ R_EXT (Ω)) × 19
40
35
30
25
20
15
10
V_DD=5.0V
5
V_O=1.0V
T_a=25°C
0
0 1 2 3 4 5 6 7 8 9 10 11 12
R_EXT (k⒋)
Constant current characteristic
60
V_DD=5.0V
V_O=1.0V
T_a=25°C
50
I_O - V_O
40
30
20
10
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
V_O (V)
19
2007-05-22