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ISL97672 Datasheet(PDF) 7 Page - Intersil Corporation |
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ISL97672 Datasheet(HTML) 7 Page - Intersil Corporation |
7 / 17 page ISL97672 7 FN7632.0 June 24, 2010 FIGURE 5. EFFICIENCY vs VIN vs SWITCHING FREQUENCY AT 20mA (100% LED DUTY CYCLE) FIGURE 6. EFFICIENCY vs VIN vs SWITCHING FREQUENCY AT 30mA (100% LED DUTY CYCLE) FIGURE 7. EFFICIENCY vs VIN vs TEMPERATURE AT 20mA (100% LED DUTY CYCLE) FIGURE 8. CHANNEL-TO-CHANNEL CURRENT MATCHING FIGURE 9. CURRENT LINEARITY vs LOW LEVEL PWM DIMMING DUTY CYCLE vs VIN FIGURE 10. VHEADROOM vs VIN AT 20mA Typical Performance Curves (Continued) 0 10 20 30 40 50 60 70 80 90 100 0 5 10 15 20 25 30 1.2MHz 580k VIN 0 5 10 15 20 25 VIN 30 1.2MHz 0 20 40 60 80 100 580k 0 10 20 30 40 50 60 70 80 90 100 0 5 10 15 20 25 30 +25°C -40°C 0°C +85°C VIN 0.40 0.10 0.20 0.30 -0.10 -0.20 0.00 012 345 CHANNEL 6 -0.30 -0.40 7 21 VIN 12 VIN 4.5 VIN 0 0.2 0.4 0.6 0.8 1.0 1.2 01 4 DC 23 5 6 4.5 VIN 12 VIN 0.40 0.45 0.50 0.55 0.60 0 5 10 15 20 25 30 -40°C 0°C +25°C VIN (V) |
Similar Part No. - ISL97672_10 |
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Similar Description - ISL97672_10 |
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