ACPL-P302-000E Avago Technologies US Inc., ACPL-P302-000E Datasheet - Page 11

• Manufacturer Part Number: ACPL-P302-000E
• Description: OPTOCOUPLER W/GAASP LED 6-SOIC
• Manufacturer: Avago Technologies US Inc.

Specifications of ACPL-P302-000E

• Output Type: Push-Pull, Totem-Pole
• Package / Case: SO-6
• Voltage - Isolation: 3750Vrms
• Number Of Channels: 1, Unidirectional
• Current - Output / Channel: 400mA
• Propagation Delay High - Low @ If: 300ns @ 7mA
• Current - Dc Forward (if): 12mA
• Input Type: DC
• Mounting Type: Surface Mount
• Fall Time: 50 ns
• Rise Time: 50 ns
• Configuration: 1 Channel
• Isolation Voltage: 3750 Vrms
• 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

Applications Information
Eliminating Negative IGBT Gate Drive
To keep the IGBT firmly off, the ACPL-P302/W302 has a
very low maximum V
R
to the IGBT gate and emitter (possibly by mounting the
ACPL-P302/W302 on a small PC board directly above the
IGBT) can eliminate the need for negative IGBT gate drive
in many applications as shown in Figure 17. Care should
be taken with such a PC board design to avoid routing the
IGBT collector or emitter traces close to the ACPL-P302/
W302 input as this can result in unwanted coupling of
transient signals into the input of ACPL-P302/W302 and
degrade performance. (If the IGBT drain must be routed
near the ACPL-P302/W302 input, then the LED should be
reverse biased when in the off state, to prevent the tran-
sient signals coupled from the IGBT drain from turning on
the ACPL-P302/W302.
Selecting the Gate Resistor (Rg)
Step 1: Calculate R
cation. The IGBT and R
a simple RC circuit with a voltage supplied by the ACPL-
P302/W302.
The V
the peak current of 0.4A. (See Figure 4).
Step 2: Check the ACPL-P302/W302 power dissipation and
increase R
dissipation (P
(P
Figure 17. Recommended LED Drive and Application Circuit for ACPL-P302/W302
11
CONTROL
g
E
R
) and the output power (P
and the lead inductance from the ACPL-P302/W302
INPUT
g
COLLECTOR
OL
³
+5 V
=
=
V
value of 1 V in the previous equation is the V
74XXX
CC
I
57.5 Ω
OPEN
24 − 1
OLPEAK
g
0.4
−
if necessary. The ACPL-P302/W302 total power
V
T
OL
) is equal to the sum of the emitter power
g
270Ω
minimum from the I
OL
1
2
3
g
specification of 1.0 V. Minimizing
in Figure 17 can be analyzed as
O
).
ACPL-P302/W302
OL
peak specifi-
0.1 μF
OL
6
5
4
at
Figure 18. Energy Dissipated in the ACPL-P302/W302 and for Each IGBT
Switching Cycle.
where K
and K
in Figure 17 with I
Duty Cycle = 80%, Q
85°C:
The value of 3 mA for I
max. I
Since P
alright for the power dissipation.
+
+
-
-
P
P
P
P
P
V
E
O
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
E
CC
T
O
= 10 mA 1.8V 0.8 = 14 mW
0
= (3 mA + (0.001 mA/nC kHz) 20 kHz 100 nC) 24V +
= P
= I
= P
= 24V
= (I
ICC
CC
0
0.3 μJ 20 kHz = 126 mW £ 250 mW ( P
O
F
R
E
O(BIAS)
ICC
CCBIAS
is a constant of 0.001 mA/(nC*kHz). For the circuit
over entire operating temperature range.
g
for this case is less than P
+
V
Rg – GATE RESISTANCE – Ω
P
F
· Q
Q1
Q2
O
20
+
+
DutyCycle
g
P
K
O(SWITCHING)
ICC
· f is the increase in I
F
(worst case) = 10 mA, R
40
Q
g
g
= 100 nC, f = 20 kHz and T
CC
f
=
)
in the previous equation is the
60
I
CC
V
Qg = 50 nC
Qg = 100 nC
Qg = 200 nC
Qg = 400 nC
CC
V
+
CC
E
80
SW
+
3-PHASE
E
O(MAX)
(R
SW
O(MAX)
+ HVDC
- HVDC
CC
AC
g
100
Q ;
(R
due to switching
g
g
@85 °C)
, R
g
Q ;
) f
= 57.5 :, Max
g
g
) f
= 57.5 : is
AMAX
=