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.
Figure 24. Waveforms for Dead Time Calculations.
15
MIL-PRF-38534 Class H,
Class K, and DSCC SMD
Test Program
Agilent Technologies’ Hi-Rel
Optocouplers are in compliance
with MIL-PRF-38534 Classes H
and K. Class H and Class K
devices are also in compliance
with DSCC drawing 5962-96852.
Testing consists of 100% screen-
ing and quality conformance
inspection to MIL-PRF-38534.