ACPL-K342-060E Avago Technologies US Inc., ACPL-K342-060E Datasheet - Page 18

• Manufacturer Part Number: ACPL-K342-060E
• Description: Logic Output Optocouplers Optocoupler
• Manufacturer: Avago Technologies US Inc.
• Series: -r
• Type: Gate Driver, Miller Clampr

Specifications of ACPL-K342-060E

• Fall Time: 18 ns
• Rise Time: 22 ns
• Maximum Propagation Delay Time: 0.35 us
• Maximum Forward Diode Voltage: 1.95 V
• Minimum Forward Diode Voltage: 1.2 V
• Maximum Reverse Diode Voltage: 5 V
• Maximum Continuous Output Current: 2.5 A
• Maximum Power Dissipation: 255 mW
• Maximum Operating Temperature: + 105 C
• Minimum Operating Temperature: - 40 C
• Package / Case: SOIC-8
• No. Of Channels: 1
• Isolation Voltage: 5kV
• Optocoupler Output Type: Gate Drive
• Input Current: 230mA
• Output Voltage: 30V
• Opto Case Style: SOIC
• No. Of Pins: 8
• Peak Reflow Compatible (260 C): Yes
• Rohs Compliant: Yes
• Voltage - Isolation: 5000Vrms
• Input Type: DC
• Voltage - Supply: 15 V ~ 30 V
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Leaded Process Compatible: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The ACPL-H342 with the Anti-Cross feature has a PDD
of -10ns and a PDD
a negative value, the t
Thus this simplified the design without having to add any
amount of delay for the input LEDs as shown in Figure 39.
Figure 39. Anti-Cross to prevent shoot through
Figure 40. Determining maximum dead time
18
Symbol
t
t
PDD (t
PLH
PHL
I
V
V
I
I
V
V
I
LED1
LED2
LED1
LED2
OUT1
OUT2
OUT1
OUT2
PHL
Q2 OFF
Q2 OFF
- t
PLH
)
Q1 ON
t
t
t
PHLMIN
PLHMAX
PLHMIN
t
MAX
PLHMIN
t
PLHMAX
PHLMAX
Q1 ON
t
Min.
0.100
0.050
-0.010
of -200ns. Since the PDD is always
PHLMAX
PDD
= Minimum Dead Time
is always faster than t
MAX
Typ.
0.260
0.145
-0.100
= -200 ns
PDD
= Minimum Dead Time
MIN
Max.
0.350
0.250
-0.200
= -10 ns
Units
Ps
Ps
Ps
PLHMIN
Q1 OFF
Q2 ON
Q1 OFF
Q2 ON
MIN
.
Dead time is the time period during which both the
high(Q1) and low(Q2) side transistor are off. During this
time, no work is done and this reduces the efficiency of
the inverter or motor drive. The minimum and maximum
dead time is shown in Figure 39 and 40 and is equivalent
to the PDD
skewed propagation delay configuration, ACPL-H342
shows a smaller maximum dead time as compared to its
predecessor, HCPL-3120 as shown in figure 41 and hence
an improve in efficiency. Note that the propagation delays
used to calculate PDD and dead time are taken at equal
temperature and test conditions since the optocou-
plers under consideration are typically mounted in close
proximity to each other and are switching identical IGBTs.
Figure 41. HCPL-3120 maximum dead time
I
V
V
I
LED1
LED2
OUT1
OUT2
MIN
and PDD
Q1 ON
t
t
Q2 OFF
PHLMIN
PHLMAX
MAX
Maximum Dead Time
= (t
= (t
= PDD
= 350  (-350) = 700 ns
t
. Due to the smaller PDD and
PLHMIN
PHLMAX
PHLMAX
MAX
t
PLHMAX
 PDD
 t
 t
Q1 OFF
PHLMIN
PLHMIN
MIN
) + (t
) + (t
Q2 ON
PLHMAX
PHLMIN
 t
 t
PLHMAX
PLHMIN
)
)