1-182
5965-4779E
H
2.0 Amp Output Current IGBT
Gate Drive Optocoupler
Technical Data
HCPL-3120
Features
• 2.0 A Minimum Peak Output
Current
• 15 kV/µs Minimum Common
Mode Rejection (CMR) at
V
CM
= 1500 V
• 0.5 V Maximum Low Level
Output Voltage (V
OL
)
Eliminates Need for
Negative Gate Drive
• I
CC
= 5 mA Maximum Supply
Current
• Under Voltage Lock-Out
Protection (UVLO) with
Hysteresis
• Wide Operating V
CC
Range:
15 to 30 Volts
• 500 ns Maximum Switching
Speeds
• Industrial Temperature
Range: -40°C to 100°C
• Safety Approval
UL Recognized - 2500 V rms
for 1 minute per UL1577
CSA Approval
VDE 0884 Approved with
V
IORM
= 630 V peak
(Option 060 only)
Applications
• Isolated IGBT/MOSFET
Gate Drive
• AC and Brushless DC Motor
Drives
• Industrial Inverters
• Switch Mode Power Supplies
(SMPS)
Description
The HCPL-3120 consists of a
GaAsP LED optically coupled to
an integrated circuit with a power
output stage. This optocoupler is
ideally suited for driving power
IGBTs and MOSFETs used in
motor control inverter applica-
tions. The high operating voltage
range of the output stage pro-
vides the drive voltages required
by gate controlled devices. The
voltage and current supplied by
this optocoupler makes it ideally
suited for directly driving IGBTs
with ratings up to 1200 V/100 A.
For IGBTs with higher ratings,
the HCPL-3120 can be used to
drive a discrete power stage
which drives the IGBT gate.
A 0.1
µ
F bypass capacitor must be connected between pins 5 and 8.
CAUTION: It is advised that normal static precautions be taken in handling and assembly of this component
to prevent damage and/or degradation which may be induced by ESD.
Functional Diagram
1
3
SHIELD
2
4
8
6
7
5
N/C
CATHODE
ANODE
N/C
V
CC
V
O
V
O
V
EE
TRUTH TABLE
V
CC
- V
EE
V
CC
- V
EE
“POSITIVE GOING” “NEGATIVE GOING”
LED (i.e., TURN-ON) (i.e., TURN-OFF) V
O
OFF 0 - 30 V 0 - 30 V LOW
ON 0 - 11 V 0 - 9.5 V LOW
ON 11 - 13.5 V 9.5 - 12 V TRANSITION
ON 13.5 - 30 V 12 - 30 V HIGH
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