ISL97676 데이터 시트보기 (PDF) - Intersil
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ISL97676 Datasheet PDF : 20 Pages
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ISL97676
Typical Performance Curves
100
80
12VIN
24VIN
5VIN
60
40
20
0
0
5
10
15
20
25
ILED (mA)
FIGURE 1. EFFICIENCY vs 20mA LED CURRENT
(100% LED DUTY CYCLE) vs VIN
100
80
24VIN
12VIN
60
5VIN
40
20
00
5
10
15
20
25
30
35
ILED (mA)
FIGURE 2. EFFICIENCY vs 30mA LED CURRENT
(100% LED DUTY CYCLE) vs VIN
100
80
20mA/1.2MHz
20mA/582kHz
60
40
20
0
0
5
10
15
20
25
30
VIN (V)
FIGURE 3. EFFICIENCY vs VIN vs SWITCHING
FREQUENCY AT 20mA (100% LED DUTY
CYCLE)
100
80
30mA/1.2MHz
30mA/582kHz
60
40
20
0
0
5
10
15
20
25
30
VIN (V)
FIGURE 4. EFFICIENCY vs VIN vs SWITCHING
FREQUENCY AT 30mA (100% LED DUTY
CYCLE)
95
90
-40°C
85
80
0°C
+85°C
+25°C
75
70 0
5
10
15
20
25
30
OUTPUT LOAD (mA)
FIGURE 5. EFFICIENCY vs VIN vs TEMPERATURE AT
20mA (100% LED DUTY CYCLE)
94
92
90
-40°C
88
+85°C
+25°C
0°C
86
84
82
80
0
5
10
15
20
25
30
VIN (V)
FIGURE 6. EFFICIENCY vs VIN vs TEMPERATURE AT
30mA (100% LED DUTY CYCLE)
9
FN7600.0
March 12, 2010
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