ACPL-P340-000E Avago Technologies US Inc., ACPL-P340-000E Datasheet - Page 16

• Manufacturer Part Number: ACPL-P340-000E
• Description: Gate Drive Optocoupler, LF
• Manufacturer: Avago Technologies US Inc.

Specifications of ACPL-P340-000E

• No. Of Channels: 1
• Optocoupler Output Type: Gate Drive
• Input Current: 16mA
• Opto Case Style: SOIC
• No. Of Pins: 6
• Leaded Process Compatible: Yes
• Peak Reflow Compatible (260 C): Yes
• Rohs Compliant: Yes
• Lead Free Status / Rohs Status: Details

Selecting the Gate Resistor (Rg)
Step 1:
RC circuit with a voltage supplied by ACPL-P340/W340.
Rg ≥
=
= 19.4   20 
Step 1:
dissipation (P
P
P
P
Using I
P
P
The value of 3 mA for I
Since P
Figure 25. Energy Dissipated in the ACPL-P340/W340 for each IGBT switching
cycle.
16
T
E
O
E
O
15 V + 5 V – 0.6 V
0.0E+00
3.0E-05
2.5E-05
2.0E-05
1.5E-05
1.0E-05
5.0E-06
= P
= I
= P
= I
= 16 mA • 1.95 V • 0.8 = 25 mW
= 3 mA • 20 V + 3.5 J • 25 kHz
= 60 mW + 87.5 mW
= 147.5 mW < 700 mW (P
F
CC
V
E
O(BIAS)
Calculate Rg minimum from the I
I
F
CC
Check the ACPL-P340/W340 power dissipation and increase Rg if necessary. The ACPL-P340/W340 total power
• V
O
OLPEAK
+ P
(worst case) = 16 mA, Rg = 20 , Max Duty Cycle = 80%, Cg = 25 nF, f = 25 kHz and T
• (V
1A
is less than P
0
F
– V
O
• Duty Cycle
CC
EE
+ P
T
-V
) is equal to the sum of the emitter power (P
– V
EE
O(SWITCHING)
5
) + E
OL
O(MAX)
SW
CC
Rg - Gate Resistance -
10
(Rg;Cg) • f
in the previous equation is the maximum I
, Rg = 20  is alright for the power dissipation.
O(MAX)
15
@ 85° C)
20
OL
peak specifi cation. The IGBT and Rg in Figure 22 can be analyzed as a simple
V
V
V
CC
CC
CC
25
= 15 V
= 30 V
= 20 V
30
E
) and the output power (P
CC
over the entire operating temperature range.
O
).
A
max = 85° C: