tca62746 Marktech Optoelectronics, tca62746 Datasheet - Page 19

• Manufacturer Part Number: tca62746
• Description: 16-output Constant Current Led Driver With Output Open/short Detection
• Manufacturer: Marktech Optoelectronics

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
Constant current characteristic
60
50
40
30
20
10
50
45
40
35
30
25
20
15
10
EXT
0
5
0
0.0
Resistor
0
V
V
T
V
V
T
DD
a
O
DD
=25°C
a
O
=1.0V
=25°C
=5.0V
=1.0V
=5.0V
1
0.5
2
3
Theoretical value
1.0
I
O
4
(A) = (1.23(V) ÷ R
I
O
I
O
5
R
- R
- V
V
19
EXT
1.5
O
EXT
O
6
(V)
(k Ω )
7
2.0
8
EXT
9
(Ω)) × 19
2.5
10 11 12
TCA62746AFG/AFNG
3.0
2007-05-22