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ISL97636A Datasheet(PDF) 6 Page - Intersil Corporation |
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ISL97636A Datasheet(HTML) 6 Page - Intersil Corporation |
6 / 18 page 6 FN6566.0 May 9, 2008 Typical Performance Curves FIGURE 2. EFFICIENCY, L = 8.2µH WITH DCR = 106m Ω, CO = 4x4.7µF/50V FIGURE 3. EFFICIENCY, L = 10µH WITH DCR = 129m Ω, CO = 4x4.7µF/50V FIGURE 4. 3 EFFICIENCY, L = 10µH WITH DCR = 500m Ω, 1mm, CO = 4x4.7µF/50V FIGURE 5. CURRENT REGULATION FIGURE 6. CHANNEL-TO-CHANNEL CURRENT MATCHING FIGURE 7. CURRENT MATCHING vs DUTY CYCLE vs DIMMING FREQUENCY 66 68 70 72 74 76 78 80 82 84 86 88 90 92 0 20 40 60 80 100 120 140 IO (mA) L = 8.2µH IHLP-2525BD-01 DCR = 106m Ω ISAT = 3A 7S6P - 18V 9S6P - 6V 7S6P - 6V 9S6P - 12V 7S6P - 12V 9S6P - 18V 66 68 70 72 74 76 78 80 82 84 86 88 90 92 0 20 40 60 80 100 120 140 IO (mA) L = 10µH IHLP-2525BD-01 DCR = 129m Ω ISAT = 2.5A 7S6P - 6V 7S6P - 12V 7S6P - 18V 9S6P - 6V 9S6P - 12V 9S6P - 18V 66 68 70 72 74 76 78 80 82 84 86 88 90 92 0 20 40 60 80 100 120 140 IO (mA) L = 10µH DCR ~ 500m Ω <1mm HEIGHT 9S6P - 6V 7S6P - 6V 9S6P - 12V 9S6P - 18V 7S6P - 12V 7S6P - 18V -1.2 -1.0 -0.8 -0.6 -0.4 -0.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 4 6 8 10 1214 161820222426 VIN (V) 20mA -0.020 -0.015 -0.010 -0.005 0 0.005 0.010 0.015 0.020 Ch 0 Ch 1 Ch 2 Ch 3 Ch 4 Ch 5 CHANNELS 6P9S = 54 LEDs 6V/1mA 6V/20mA 12V/1mA 12V/20mA 0.5 0.6 0.7 0.8 0.9 1.0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 PWM DUTY CYCLE 10kHz 200Hz 1kHz 100Hz 20kHz VIN = 12V ISL97636A |
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