AS3665_04 Datasheet, PDF (10/78 Pages) ams AG – 9 Channel Advanced Command Driven RGB/White LED Driver

AS3665
Datasheet, Confidential - Typical Operating Characteristics
Figure 10. Logarithmic PWM ramp
100
Figure 11. ILED vs. Voltage on current source
25
LEDX_max=25.5mA
20
10
1
lid ^0.1
a _0.01
v ₀
ILED
IB A T
50
100 150 200 250
Digital Code
15
10
5
0
0
ILED=2 0 mA
ILED=15mA
ILED=10mA
ILED=5mA
0.2
0.4
0.6
0.8
1
Voltage on current source (V)
till Figure 12. ILED vs. Voltage on current source
30
G _{s LEDX_max=25.5mA}
25
A ^t _{LEDX_max=19.1mA}
20
s ⁿ ₁₅
LEDX_max=12.7mA
m ^{te 10}
a ⁿ ₅
o ₀
c ₀
LEDX_max=6.3mA
ILED=6 .3 mA
ILED=12 .7mA
ILED=19 .1mA
ILED=25.5mA
0.2
0.4
0.6
0.8
1
Voltage on current source (V)
Figure 13. ILED vs. Voltage on current source
20
19
18
17
16
15
0
LEDX_max=19.1mA
LEDX_Current=19.1mA
TAM B=25deg
TAM B=85deg
TAM B=-20deg
0.2
0.4
0.6
0.8
1
Voltage on current source (V)
Technical ^{Figure 14. CP in 1:1.5 mode, 150mA load, ac-coupled}
500ns/Div
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