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ISL97686 Datasheet(PDF) 8 Page - Intersil Corporation |
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ISL97686 Datasheet(HTML) 8 Page - Intersil Corporation |
8 / 23 page ISL97686 8 FN7953.0 April 23, 2012 Typical Performance Curves FIGURE 4. EFFICIENCY vs VIN (ICH: 100mA, fDIM: 200Hz, VOUT: 45V FOR 4P14S AND 55V FOR 4P18S) FIGURE 5. EFFICIENCY vs ICH (VOUT: 55V FOR 4P18S, fDIM: 200Hz) FIGURE 6. EFFICIENCY vs PWM DIMMING (VIN: 24V, VOUT: 55V FOR 4P18S, ICH: 100mA) FIGURE 7. ACCURACY vs WPM DIMMING (VIN: 24V, VOUT: 55V FOR 4P18S, ICH: 100mA) FIGURE 8. PWM DIMMING LINEARITY (VIN: 24V, VOUT: 55V FOR 4P18S) FIGURE 9. PWM DIMMING LINEARITY (VIN: 24V, VOUT: 55V FOR 4P18S) 70 75 80 85 90 95 100 5 1015 202530 35 INPUT VOLTAGE (V) 4P18S 4P14S 70 75 80 85 90 95 100 30 50 70 90 110 130 150 170 CHANNEL CURRENT (mA) V_IN:24V V_IN:19V 40 50 60 70 80 90 100 0 20 40 60 80 100 DIMMING DUTY CYCLE (%) fDIM: 1kHz fDIM: 200Hz -1.0 -0.5 0.0 0.5 1.0 0 20 406080 100 DIMMING DUTY CYCLE (%) CH2 CH1 CH3 CH4 0 10 20 30 40 50 60 70 80 90 100 110 020 40 60 80 100 DIMMING DUTY CYCLE (%) 1kHz 200Hz 0 1 2 3 4 5 6 7 8 9 10 024 68 10 DIMMING DUTY CYCLE (%) 1kHz 200Hz |
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