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AS3490 Datenblatt(PDF) 9 Page - ams AG

Teilenummer AS3490
Bauteilbeschribung  Highly Efficient 2-6 LEDs Backlight Driver with PWM Input
PDF  19 Pages
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Hersteller  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS3490 Datenblatt(HTML) 9 Page - ams AG

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AS3490
Datasheet - Ty p i c a l O p e r a t i n g C h a r a c t e r i s t i c s
Figure 9. Open LED Detection Waveform
Figure 10. VIN line transient 10µs (ILOAD=100mA)
Figure 11. VOUT ripple with PWM
Figure 12. ILED ripple (ILOAD=100mA)
Figure 13. ILED vs. RISET
Figure 14. fosc vs.VIN
0
5
10
15
20
25
0
25
50
75
100
125
150
175
200
ILED
mA
RISET [kOhm]
ILED [mA]
ILED=VISET/RISET*ILED2ISET
1,950
1,975
2,000
2,025
2,050
2,3
2,7
3,1
3,5
3,9
4,3
4,7
5,1
5,5
fosc
[MHz]
Input Voltage (V)
-30deg
85deg
25deg



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