HCPL-4506 데이터 시트보기 (PDF) - Avago Technologies

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HCPL-4506

Intelligent Power Module and Gate Drive Interface Optocouplers

Avago Technologies 

+5 V

ILED1

310 Ω

CMOS

+5 V

ILED2

310 Ω

CMOS

HCPL-4506

1

2

20 kΩ

8

0.1 µF

7

3

6

4

5

SHIELD

HCPL-4506

1

2

20 kΩ

8

0.1 µF

7

3

6

4

5

SHIELD

VCC1

20 kΩ

VOUT1

VCC2

20 kΩ

VOUT2

HCPL-4506

HCPL-4506

HCPL-4506

HCPL-4506

HCPL-4506

IPM

Q1

Q2

Figure 24. Typical application circuit.

HCPL-4506 fig 28

+HV

M

-HV

ILED1

VOUT1

VOUT2

Q1 ON

Q2 OFF

Q1 OFF

Q2 ON

ILED2

tPLH MAX.

tPHL

MIN.

PDD* MAX. =

(tPLH-tPHL) MAX. = tPLH MAX. - tPHL MIN.

*PDD = PROPAGATION DELAY DIFFERENCE

NOTE: THE PROPAGATION DELAYS USED TO CALCULATE

PDD ARE TAKEN AT EQUAL TEMPERATURES.

HCPL-4506 fig 29

Figure 25. Minimum LED skew for zero dead time.

ILED1

VOUT1

VOUT2

Q1 ON

Q2 OFF

Q1 OFF

Q2 ON

ILED2

tPLH

MIN.

tPLH

MAX.

PDD*

MAX.

tPHL

MIN.

tPHL

MAX.

MAX.

DEAD TIME

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.

*PDD = PROPAGATION DELAY DIFFERENCE

NOTE: THE PROPAGATION DELAYS USED TO CALCULATE THE MAXIMUM

DEAD TIME ARE TAKEN AT EQUAL TEMPERATURES.

HCPL-4506 fig 30

Figure 26. Waveforms for dead time calculation.

19

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