tb62725bpg Marktech Optoelectronics, tb62725bpg Datasheet - Page 9

• Manufacturer Part Number: tb62725bpg
• Description: 8?bit?constant ?current?led?driver?of?the?3.3?v?and?5?v?power?supply?voltage?operation
• Manufacturer: Marktech Optoelectronics

Output Current – Duty (LED turn­on rate)
100
0.6
0.2
1.6
1.4
1.2
1.0
0.8
0.4
90
80
70
60
50
40
30
20
10
80
60
40
20
100
0
0
0
0
0
T opr = 25°C
V DD = 5.0 V
V CE = 1.0 V
Tj = 120°C (max)
V CE = 0.7 V
BPG (Free air)
(mounted PCB)
20
20
Ambient temperature Ta (
BFG/BFNG
DUTY – Turn on rate (%)
I
OUT
( recommended )
500
I OUT (mA) = (1.15 ¸ R EXT (W)) ´ 14.9
I
OUT
– DUTY On PCB
40
40
R
P
T opr = 25°C
EXT
d
1000
–T
– R
opr
(W)
EXT
60
60
BFG/BFNG
BPG
°C
80
80
)
5000
10000
100
100
9
100
100
80
60
40
20
80
60
40
20
0
0
0
0
T opr = 55°C
V DD = 5.0 V
V CE = 1.0 V
Tj = 120°C (max)
T opr = 85°C
V DD = 5.0 V
V CE = 1.0 V
Tj = 120°C (max)
20
20
DUTY – Turn on rate (%)
DUTY – Turn on rate (%)
TB62725BPG/BFG/BFNG
I
I
OUT
OUT
(recommended)
(recommended)
– DUTY On PCB
– DUTY On PCB
40
40
60
60
BFG/BFNG
BPG
BFG/BFNG
BPG
80
80
2005­04­20
100
100