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ISL78100 Datasheet(PDF) 4 Page - Intersil Corporation |
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ISL78100 Datasheet(HTML) 4 Page - Intersil Corporation |
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4 / 19 page  4 FN6626.0 December 17, 2007 Typical Performance Curves FIGURE 1. 8 LEDs EFFICIENCY vs INPUT VOLTAGE vs DIMMING FREQUENCY AND DUTY CYCLE FIGURE 2. 5 LEDs EFFICIENCY vs INPUT VOLTAGE vs DIMMING FREQUENCY AND DUTY CYCLE FIGURE 3. 3 LEDs EFFICIENCY vs INPUT VOLTAGE vs DIMMING FREQUENCY AND DUTY CYCLE FIGURE 4. 8 AND 5 LEDs EFFICIENCY vs PWM DUTY CYCLE FIGURE 5. LEDs PWM DIMMING LINEARITY FIGURE 6. 8 LEDs CURRENT ACCURACY vs INPUT VOLTAGE 60 65 70 75 80 85 90 95 100 6 8 10 12 14 16 18 VIN (V) 8 LEDs ILEDpeak = 380mA 10%@100Hz 10%@10kHz 99%@100Hz 99%@10kHz 50%@1kHz 50%@10kHz 50%@100Hz 10%@1kHz 99%@1kHz 60 65 70 75 80 85 90 95 100 4 6 8 1012 1416 VIN (V) 5 LEDs ILEDpeak = 380mA 99% @ 10kHz 99% @ 100Hz 10% @ 10kHz 10% @ 100Hz 60 65 70 75 80 85 90 95 100 48 10 VIN (V) 3 LEDs ILEDpeak = 380mA 6 99%@100Hz 99%@10kHz 10%@10kHz 10%@100Hz 60 65 70 75 80 85 90 95 100 0 2040 6080 100 PWM DIMMING DUTY CYCLE (%) 8 LEDs 5 LEDs ILEDpeak = 380mA PWM = 10kHz 8 LEDs, VIN = 12V 5 LEDs, VIN = 9V 0 50 100 150 200 250 300 350 400 0 204060 80 100 PWM DIMMING DUTY CYCLE (%) 8 LEDs, VIN = 12V ILEDpeak = 380mA 5 LEDs @ 100Hz 5 LEDs, VIN = 9V 3 LEDs, VIN = 5V 3 LEDs @ 100Hz 8 LEDs @ 1kHz 5 LEDs @ 10kHz 8 LEDs @ 10kHz -6 -5 -4 -3 -2 -1 0 1 2 3 4 6 8 10 12 14 16 18 VIN (V) 8 LEDs ILEDpeak = 380mA 10% @ 100Hz 99% @ 100Hz 99% @ 10kHz 10% @ 10kHz ISL78100 |
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Similar Description - ISL78100 |
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