Avago Technologies ACPL-224-500E - Manual (Page 53)

AV02-4387EN 50 Avago Technologies
Dual Channel Isolated Integrated Gate Driver for IGBT/MOSFET
Motor Control Applications
Description
The HCPL-314J drives 2 IGBTs or
MOSFETs directly in this circuit and
provides full regulatory approved
isolation between the power and
control circuits. The output power
supply can be derived from rail to rail
supply by using a bootstrap circuit
illustrated in the “Inverter Design
using Gate Drive and Current Sense
Optocoupler” section. The value of
Rg in the above circuit is chosen to
control the peak gate charge and
discharge current as well as the
output power dissipation.
Performance of Circuit
• Dual in 1 package saves assem-
bly costs.
• Peak output current of 0.4 A
best suited for low and medium
power IGBTs.
• Superior common mode tran-
sient noise immunity: 10 kV/ µs@
Vcm = 1500 V.
• Low Icc current and wide Vcc
range: 10 V - 30 V over -40°C to
100°C.
• Low V
OL
of 1V eliminates the
need for negative supply voltage
(Vee).
• Worldwide regulatory approval.
Alternative Avago Parts
1) HCPL-315J 0.5 Amp Dual IGBT
Gate Driver
2) HCPL-3150 0.5 Amp Isolated IGBT
Gate Driver
3) HCPL-3140 0.4 amp Isolated IGBT
Gate driver
4) HCPL-3120 2.0 Amp IGBT Gate
Driver
5) HCPL-316J 2.0Amp Isolated Gate
Driver with Integrated Desatura-
tion Detection and Feedback.
CONTROL
INPUT
FLOATING
SUPPLY
V
CC
= 18 V
FLOATING
SUPPLY
V
CC
= 18 V
74XXX
OPEN
COLLECTOR
+5 V
270 Ω
HCPL-314J
+HVDC
–HVDC
3-PHASE
AC
16
Rg
Rg
0.1 µF
0.1 µF
15
14
1
2
3
11
10
9
6
7
8
+
–
+
–
GND 1
CONTROL
INPUT
74XXX
OPEN
COLLECTOR
+5 V
270 Ω
GND 1