Datasheet

Features
2.5 A maximum peak output current
2.0 A minimum peak output current
25 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
SafetyApproval:
UL Recognized
3750 Vrms for 1 min. for HCPL-3120/J312 
5000 Vrms for 1 min. for HCNW3120 
CSA Approval
IEC/EN/DIN EN 60747-5-2 Approved
V
IORM
= 630 V
peak
 for HCPL-3120 (Option 060) 
V
IORM
= 891 V
peak
 for HCPL-J312 
V
IORM
= 1414 V
peak
 for HCNW3120
Applications
IGBT/MOSFET gate drive
AC/Brushless DC motor drives
Industrial inverters
Switch mode power supplies
HCPL-3120/J312, HCNW3120
2.5 Amp Output Current IGBT Gate Drive Optocoupler
Data Sheet
Lead (Pb) Free
RoHS 6 fully
compliant
RoHS 6 fully compliant options available;
-xxxE denotes a lead-free product
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.
Description
The HCPL-3120 contains a GaAsP LED while the     HCPL-
J312 and the HCNW3120 contain an AlGaAs LED. The LED 
is optically coupled to an integrated circuit with a power 
output stage. These optocouplers  are ideally suited for 
driving power IGBTs and MOSFETs used in motor control 
inverter applications. The high operating voltage range 
of the output stage provides the drive voltages required 
by  gate  controlled  devices.  The  voltage  and  current 
supplied  by  these  optocouplers  make  them  ideally 
suited for directly driving IGBTs with ratings up to 1200 
V/100  A.  For  IGBTs  with  higher  ratings,  the  HCPL-3120 
series can be used to drive a discrete power stage which 
drives the IGBT gate. The HCNW3120 has the highest in-
sulation voltage of V
IORM 
= 1414 Vpeak in the IEC/EN/DIN 
EN 60747-5-2. The HCPL-J312 has an insulation voltage 
of  V
IORM 
= 891 V
peak
and  the  V
IORM 
= 630 V
peak
is  also 
available with the HCPL-3120 (Option 060).
A 0.1 µF bypass capacitor must be connected between pins 5 and 8.
TRUTH TABLE
LED
V
CC
- V
EE
“POSITIVE GOING”
(i.e., TURN-ON)
V
CC
- V
EE
“NEGATIVE GOING”
(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 
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
1
3
SHIELD
2
4
8
6
7
5
N/C
CATHODE
ANODE
N/C
V
CC
N/C
V
O
V
EE
HCNW3120
HCPL-3120/J312

Summary of content (24 pages)