ACPL-P340-000E Avago Technologies US Inc., ACPL-P340-000E Datasheet - Page 14

• 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

Application Information
Product Overview Description
The ACPL-P340/W340 is an optically isolated power output
stage capable of driving IGBTs of up to 50 A and 1200 V.
Based on BCDMOS technology, this gate drive optocou-
pler delivers higher peak output current, better rail-to-rail
output voltage performance and two times faster speed
than the previous generation products.
The high peak output current and short propagation delay
are needed for fast IGBT switching to reduce dead time
and improve system overall effi ciency. Rail-to-rail output
voltage ensures that the IGBT’s gate voltage is driven to
the optimum intended level with no power loss across
IGBT. This helps the designer lower the system power
which is suitable for bootstrap power supply operation.
It has very high
which allows the microcontroller and the IGBT to operate
at very large common mode noise found in industrial
motor drives and other power switching applications. The
input is driven by direct LED current and has a hysteresis
that prevents output oscillation if insuffi cient LED driving
current is applied. This will eliminates the need of addi-
tional Schmitt trigger circuit at the input LED.
The stretched SO6 package which is up to 50% smaller
than conventional DIP package facilitates smaller more
compact design. These stretched packages are compliant
to many industrial safety standards such as IEC/EN/DIN EN
60747-5-2, UL 1577 and CSA.
Figure 22. Recommended application circuit with split resistors LED drive
14
+
_
_
R
R
CATHODE
CMR(common mode rejection)
ANODE
NC
1
2
3
V
V
V
CC
OUT
EE
6
5
4
rating
1 F
V
EE
R
= 5 V
g
Recommended Application Circuit
The recommended application circuit shown in Figure 22
illustrates a typical gate drive implementation using the
ACPL-P340. The following describes about driving IGBT.
However, it is also applicable to MOSFET. Designers will
need to adjust the V
MOSFET or IGBT gate threshold requirements (Recom-
mended V
The supply bypass capacitors (1 F) provide the large
transient currents necessary during a switching transition.
Because of the transient nature of the charging currents, a
low current (3.0 mA) power supply will be enough to power
the device. The split resistors (in the ratio of 1.5:1) across
the LED will provide a high CMR response by providing a
balanced resistance network across the LED.
The gate resistor R
and controls the IGBT collector voltage rise and fall times.
In PC board design, care should be taken to avoid routing
the IGBT collector or emitter traces close to the ACPL-P340
input as this can result in unwanted coupling of transient
signals into ACPL-P340 and degrade performance.
+
_
+
_
V
CC
= 15 V
Q1
Q2
CC
= 15 V for IGBT and 12 V for MOSFET).
G
CC
serves to limit gate charge current
supply voltage, depending on the
V
V
+
+
_
_
CE
CE
+ HVDC
3-HVDC
-HVDC
AC