Features

•   2.5 A maximum peak output current

•   2.0 A minimum peak output current

•   25 kV/µs minimum Common Mode Rejection (CMR) at 

Eliminates need for negative gate drive

•   Under  Voltage  Lock-Out  protection  (UVLO)  with 

hysteresis

•   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

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-

EN 60747-5-2. The HCPL-J312 has an insulation voltage 

available with the HCPL-3120 (Option 060).

A 0.1 µF bypass capacitor must be connected between pins 5 and 8.

TRUTH TABLE

LED

“POSITIVE GOING”

(i.e., TURN-ON)

“NEGATIVE GOING”

(i.e., TURN-OFF)

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

1

3

SHIELD

2

4

8

6

7

5

N/C

CATHODE

ANODE

N/C

N/C

HCNW3120

HCPL-3120/J312