ISL97671 데이터 시트보기 (PDF) - Intersil
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ISL97671 Datasheet PDF : 28 Pages
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ISL97671
Typical Performance Curves (Continued)
1.2
0.60
1.0
+25°C
-40°C
0.55
0.8
4.5 VIN
0.6
12 VIN
0.4
0.2
0.50
0.45
0°C
0
0
1
2
3
4
5
6
DC
FIGURE 10. CURRENT LINEARITY vs LOW LEVEL PWM
DIMMING DUTY CYCLE vs VIN
0.40
0
5
10
15
20
25
30
VIN (V)
FIGURE 11. VHEADROOM vs VIN AT 20mA
FIGURE 12. VOUT RIPPLE VOLTAGE, VIN = 12V, 6P12S
AT 20mA/CHANNEL
FIGURE 13. IN-RUSH and LED CURRENT AT VIN = 6V
FOR 6P12S AT 20mA/CHANNEL
FIGURE 14. IN-RUSH AND LED CURRENT AT VIN = 12V
FOR 6P12S AT 20mA/CHANNEL
FIGURE 15. LINE REGULATION WITH VIN CHANGE
FROM 6V TO 26V, VIN = 12V, 6P12S AT
20mA/CHANNEL
9
FN7631.0
June 24, 2010
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