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HCPL-0466 Datasheet(PDF) 19 Page - AVAGO TECHNOLOGIES LIMITED |
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HCPL-0466 Datasheet(HTML) 19 Page - AVAGO TECHNOLOGIES LIMITED |
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19 / 21 page ![]() 19 Figure 24. Typical application circuit. Figure 26. Waveforms for dead time calculation. Figure 25. Minimum LED skew for zero dead time. 0.1 µF 20 k Ω HCPL-4506 fig 28 CMOS 310 Ω +5 V VOUT1 I LED1 VCC1 M HCPL-4506 HCPL-4506 HCPL-4506 HCPL-4506 HCPL-4506 Q2 Q1 -HV +HV IPM 8 7 6 1 3 SHIELD 5 2 4 20 k Ω HCPL-4506 0.1 µF 20 k Ω CMOS 310 Ω +5 V VOUT2 I LED2 VCC2 8 7 6 1 3 SHIELD 5 2 4 20 k Ω HCPL-4506 HCPL-4506 fig 29 VOUT1 VOUT2 ILED2 tPLH MAX. PDD* MAX. = (tPLH-tPHL) MAX. = tPLH MAX. - tPHL MIN. tPHL MIN. ILED1 Q1 ON Q2 OFF Q1 OFF Q2 ON *PDD = PROPAGATION DELAY DIFFERENCE NOTE: THE PROPAGATION DELAYS USED TO CALCULATE PDD ARE TAKEN AT EQUAL TEMPERATURES. HCPL-4506 fig 30 VOUT1 VOUT2 ILED2 tPLH MIN. MAXIMUM DEAD TIME (DUE TO OPTOCOUPLER) = (tPLH MAX. - tPLH MIN.) + (tPHL MAX. - tPHL MIN.) = (tPLH MAX. - tPHL MIN.) - (tPLH MIN. - tPHL MAX.) = PDD* MAX. - PDD* MIN. tPHL MIN. ILED1 Q1 ON Q2 OFF Q1 OFF Q2 ON *PDD = PROPAGATION DELAY DIFFERENCE tPLH MAX. tPHL MAX. PDD* MAX. MAX. DEAD TIME NOTE: THE PROPAGATION DELAYS USED TO CALCULATE THE MAXIMUM DEAD TIME ARE TAKEN AT EQUAL TEMPERATURES. |
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