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ISL62386 Datasheet(PDF) 8 Page - Intersil Corporation |
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ISL62386 Datasheet(HTML) 8 Page - Intersil Corporation |
8 / 20 page 8 FN6831.0 February 4, 2009 Typical Performance FIGURE 5. CHANNEL 1 EFFICIENCY AT VO1 =3.3V, DEM OPERATION. HIGH-SIDE 1xIRF7821, rDS(ON) = 9.1mΩ; LOW-SIDE 1xIRF7832, rDS(ON) = 4mΩ; L = 4.7µH, DCR = 14.3mΩ; CCM FSW = 270kHz FIGURE 6. CHANNEL 2 EFFICIENCY AT VO2 =5V, DEM OPERATION. HIGH-SIDE 1xIRF7821, rDS(ON) = 9.1mΩ; LOW-SIDE 1xIRF7832, rDS(ON) = 4mΩ; L = 4.7µH, DCR = 14.3mΩ; CCM FSW = 330kHz FIGURE 7. POWER-ON, VIN = 12V, IO1 =5A, VO1 = 3.3V FIGURE 8. POWER-OFF, VIN = 12V, IO1 =5A, VO1 =3.3V FIGURE 9. ENABLE CONTROL, EN1 = HIGH, VIN = 12V, VO1 = 3.3V, IO1 =5A FIGURE 10. ENABLE CONTROL, EN1 = LOW, VIN = 12V, VO1 = 3.3V, IO1 =5A 50 55 60 65 70 75 80 85 90 95 100 0.10 1.00 10.00 IOUT (A) VIN = 7V VIN = 12V VIN = 19V 50 55 60 65 70 75 80 85 90 95 100 0.01 0.10 1.00 10.00 IOUT (A) VIN = 7V VIN = 12V VIN = 19V VO1 FB1 PGOOD PHASE1 1) CH1: 2V 1ms 2) CH2: 500mV 1ms 3) CH3: 5V 1ms 4) CH4: 10V 1ms VO1 FB1 PGOOD PHASE1 1) CH1: 2V 200µs 2) CH2: 500mV 200µs 3) CH3: 5V 200µs 4) CH4: 10V 200µs VO1 FB1 PGOOD EN1 1) CH1: 2V 500µs 2) CH2: 500mV 500µs 3) CH3: 5V 500µs 4) CH4: 10V 500µs VO1 FB1 PGOOD EN1 1) CH1: 2V 1ms 2) CH2: 500mV 1ms 3) CH3: 5V 1ms 4) CH4: 5V 1ms ISL62386 |
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