tb62726a Marktech Optoelectronics, tb62726a Datasheet - Page 9

• Manufacturer Part Number: tb62726a
• Description: 16-bit Constant-current Led Driver With Operating Voltage Of 3.3-v And 5-v
• Manufacturer: Marktech Optoelectronics

Output Current – Duty (LEDS turn-on rate)
Output Current – R
100
100
80
60
40
20
80
60
40
20
90
80
70
60
50
40
30
20
10
0
0
100
0
0
0
T opr = 25°C
V DD = 3.3 V to 5.0 V
V CE = 1.0 V
Tj = 120°C (max)
T opr = 85°C
V DD = 3.3 V to 5.0 V
V CE = 1.0 V
Tj = 120°C (max)
V CE = 0.7 V
20
20
DUTY – Turn On Rate (%)
DUTY – Turn On Rate (%)
I
I
Theoretical value:
I OUT = (1.15 (V) ÷ R-EXT (Ω)) × 14.9
OUT
OUT
500
I
– DUTY On PCB
– DUTY On PCB
OUT
40
40
R EXT (Ω)
T opr = 25°C
EXT
1000
– R
EXT
Resistor
60
60
TB62726AFG
TB62726ANG
TB62726AFG
TB62726ANG
80
80
5000
10000
100
100
9
100
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
80
60
40
20
0
0
0
0
T opr = 55°C
V DD = 3.3 V to 5.0 V
V CE = 1.0 V
Tj = 120°C (max)
NG (On PCB)
FG (On PCB)
20
20
Ambient temperature Ta (°C)
DUTY – Turn On Rate (%)
I
OUT
– DUTY On PCB
40
40
P
d
– T
TB62726ANG/AFG
opr
60
60
TB62726AFG
TB62726ANG
80
80
2005-12-21
100
100