ACPL-W314-060E Avago Technologies US Inc., ACPL-W314-060E Datasheet - Page 13
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ACPL-W314-060E
Manufacturer Part Number
ACPL-W314-060E
Description
OPTOCOUPLER IGBT 0.4A VDE 6-SOIC
Manufacturer
Avago Technologies US Inc.
Specifications of ACPL-W314-060E
Output Type
Push-Pull, Totem-Pole
Package / Case
6-SOP
Voltage - Isolation
3750Vrms
Number Of Channels
1, Unidirectional
Current - Output / Channel
600mA
Propagation Delay High - Low @ If
300ns @ 7mA
Current - Dc Forward (if)
25mA
Input Type
DC
Mounting Type
Surface Mount
Fall Time
50 ns
Rise Time
50 ns
Configuration
1 Channel
Isolation Voltage
3750 Vrms
Maximum Propagation Delay Time
700 ns
Maximum Forward Diode Voltage
1.8 V
Minimum Forward Diode Voltage
1.2 V
Maximum Reverse Diode Voltage
5 V
Maximum Forward Diode Current
12 mA
Maximum Power Dissipation
250 mW
Maximum Operating Temperature
+ 100 C
Minimum Operating Temperature
- 40 C
Number Of Elements
1
Forward Voltage
1.8V
Forward Current
25mA
Operating Temp Range
-40C to 100C
Power Dissipation
250mW
Propagation Delay Time
700ns
Pin Count
6
Mounting
Surface Mount
Reverse Breakdown Voltage
5V
Operating Temperature Classification
Industrial
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Figure 26. Minimum LED Skew for Zero Dead Time.
13
Figure 25. Recommended LED Drive Circuit for Ultra-High CMR Dead Time
and Propagation Delay Specifications.
Dead Time and Propagation Delay Specifications
The ACPL-P314/W314 includes a Propagation Delay Dif-
ference (PDD) specification intended to help designers
minimize “dead time” in their power inverter designs.
Dead time is the time high and low side power transistors
are off. Any overlap in Ql and Q2 conduction will result
in large currents flowing through the power devices
from the high voltage to the low-voltage motor rails.
To minimize dead time in a given design, the turn on of
LED2 should be delayed (relative to the turn off of LED1)
so that under worst-case conditions, transistor Q1 has
just turned off when transistor Q2 turns on, as shown in
Figure 26. The amount of delay necessary to achieve this
condition is equal to the maximum value of the propa-
gation delay difference specification, PDD max, which is
specified to be 500 ns over the operating temperature
range of -40° to 100°C.
*PDD = PROPAGATION DELAY DIFFERENCE
NOTE: FOR PDD CALCULATIONS THE PROPAGATION DELAYS
ARE TAKEN AT THE SAME TEMPERATURE AND TEST CONDITIONS.
V
V
I
I
OUT1
OUT2
LED1
LED2
+5 V
+5 V
1
1
2
2
3
3
C
C
C
C
LEDN
LEDN
LEDP
LEDP
PDD* MAX = (t
SHIELD
t
PHL MAX
Q2 OFF
Q1 ON
t
PLH MIN
PHL
- t
PLH
6
6
5
5
4
4
)
MAX
= t
Q1 OFF
Q2 ON
PHL MAX
- t
PLH MIN
*PDD = PROPAGATION DELAY DIFFERENCE
NOTE: FOR DEAD TIME AND PDD CALCULATIONS ALL PROPAGATION
DELAYS ARE TAKEN AT THE SAME TEMPERATURE AND TEST CONDITIONS.
Delaying the LED signal by the maximum propagation
delay difference ensures that the minimum dead time is
zero, but it does not tell a designer what the maximum
dead time will be. The maximum dead time is equivalent
to the difference between the maximum and minimum
propagation delay difference specification as shown in
Figure 27. The maximum dead time for the ACPL-P314/
W314 is 1 μs (= 0.5 μs - (-0.5 μs)) over the operating tem-
perature range of –40°C to 100°C.
Figure 27. Waveforms for Dead Time.
Note that the propagation delays used to calculate PDD
and dead time are taken at equal temperatures and test
conditions since the optocouplers under consideration
are typically mounted in close proximity to each other
and are switching identical IGBTs.
V
V
I
I
OUT1
OUT2
LED1
LED2
(t
PHL-
PDD* MAX
Q2 OFF
Q1 ON
t
t
PHL MIN
PHL MAX
t
PLH
)
MAX
MAXIMUM DEAD TIME
(DUE TO OPTOCOUPLER)
= (t
= (t
= PDD* MAX – PDD* MIN
PHL MAX
PHL MAX
t
MIN
PLH
t
PLH MAX
- t
- t
PHL MIN
PLH MIN
) + (t
) – (t
Q1 OFF
PLH MAX
PHL MIN
Q2 ON
- t
- t
PLH MAX
PLH MIN
)
)