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/

Mode Rejection (CMR) at

• 0.5 V Maximum Low Level

Eliminates Need for

Negative Gate Drive

Current

• Under Voltage Lock-Out

Protection (UVLO) with

Hysteresis

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

(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

µF 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

TRUTH TABLE

“POSITIVE GOING” “NEGATIVE GOING”

LED

(i.e., TURN-ON)

(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