Avago Technologies ACPL-P340-000E - Manual

Gate Drive Evaluation Board
for ACPL-P343/W343 4.0 Amp Gate Drive Optocoupler
with Rail-to-Rail Output Voltage in Stretched SO6
User’s Guide
Product Description
The ACPL-P343/W343 is a 4.0 A peak output current gate
drive optocoupler with rail-to-rail output voltage and very
short propagation delay that help to improve the effi
-
ciency and reliability of IGBT gate driving.
ACPL-P343/W343 is ideally suited for driving IGBTs and
power MOSFETs used in motor control and renewable
energy inverter applications. The voltage and current
supplied by these optocouplers make them suitable for
direct driving of IGBTs with ratings up to 1200 V and 200 A.
ACPL-W343 has an insulation voltage of V
IORM
= 1140
V
PEAK
. It is also immune to common-mode voltage tran-
sients as high as 1.5 kV and as fast as 35 kV/
s.
About Evaluation Board
The ACPL-P34X/W34X evaluation board allows a power-
inverter designer to easily test the drive, rail-to-rail and
speed capability of the ACPL-P343/W343 gate drive opto-
coupler. The evaluation board includes two separate gate
drive channels (one optocoupler per channel) making it
a half-bridge topology for driving directly the gates of
high-side and low-side IGBTs of a power inverter (such
as single-phase motor inverter or one phase of a 3-phase
motor inverter). This evaluation board can also support
ACPL-P341/W341 and ACPL-P340/W340.
Features
 Half-Bridge topology
 Footprints for bootstrap power supply confi guration
 Works for IGBT TO-220 / TO-247 type
 Able to evaluate the
4 A drive, rail-to-rail and speed
performance
 Footprints for PCB mounting terminal blocks for wire
connections to motor
 Split resistors network to achieve high CMR response
 Example of good bypass capacitors layout
 Supports
ACPL-P341/W341 and ACPL-P340/W340
Applications
 Isolated IGBT/MOSFET Gate Drive
 AC and Brushless DC Motor Drives
 Industrial Inverters
 Renewable Energy Inverters
 Uninterruptible Power Supplies (UPS)
Diagrams
The schematic diagram of the evaluation board can be
found in
Figure 1 and 2 . The top view of evaluation board
is in Figure 3 .
CAUTION: When operating the board connected to a half-bridge dual IGBT (with the dual IGBT con-
nected to high-voltage rails) never short the output ground planes and scope ground together!! Also
when probing points on the upper gate-drive channel use a scope with adequate voltage rating!