V
OUT1
V
OUT2
I
LED2
t
PLH MAX.
PDD* MAX. =
(t
PLH-
t
PHL
)
MAX. =
t
PLH MAX. -
t
PHL MIN.
t
PHL MIN.
I
LED1
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.
V
OUT1
V
OUT2
I
LED2
t
PLH
MIN.
MAXIMUM DEAD TIME (DUE TO OPTOCOUPLER)
= (t
PLH MAX. -
t
PLH MIN.
)
+
(t
PHL MAX. -
t
PHL MIN.
)
= (t
PLH MAX. -
t
PHL MIN.
) -
(t
PLH MIN. -
t
PHL MAX.
)
= PDD* MAX. - PDD* MIN.
t
PHL
MIN.
I
LED1
Q1 ON
Q2 OFF
Q1 OFF
Q2 ON
*PDD = PROPAGATION DELAY DIFFERENCE
t
PLH
MAX.
t
PHL
MAX
.
PDD*
MAX.
MAX.
DEAD TIME
Note: the propagation delays used to calculate the maximum
Dead time are taken at equal temperatures.
Figure 23. Minimum LED Skew for Zero Dead Time.
Figure 24. Waveforms for Deadtime Calculation.
For product information and a complete list of distributors, please go to our web site: www.avagotech.com
Avago, Avago Technologies, the A logo and R
2
Coupler™ are trademarks of Avago Technologies in the United States and other countries.
Data subject to change. Copyright © 2005-2013 Avago Technologies. All rights reserved. Obsoletes 5989-2118EN
AV02-0949EN - October 3, 2013
