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FOD8333

Input LED Drive, 2.5 A Output Current, IGBT Drive Optocoupler with Desaturation Detection, Isolated Fault Sensing, Active Miller Clamp, and Automatic Fault Reset

ON Semiconductor 

May 2014

FOD8333

Input LED Drive, 2.5 A Output Current, IGBT Drive

Optocoupler with Desaturation Detection, Isolated Fault

Sensing, Active Miller Clamp, and Automatic Fault Reset

Features

■ Input LED Drive Facilitates Receiving Digitally

Encoded Signals from PWM Output

■ Optically Isolated Fault-Sensing Feedback

■ Active Miller Clamp to Shut Off IGBT During High

dv/dt without Negative Supply Voltage

■ High Noise Immunity Characterized by

Common Mode Rejection – 35 kV/µs Minimum,

VCM = 1500 VPEAK

■ 2.5 A Peak Output Current Driving Capability for

Medium Power IGBT

– P-Channel MOSFETs at Output Stage Enable

Output Voltage Swing Close to Supply Rail

(Rail-to-Rail Output)

– Wide Supply Voltage Range: 15 V to 30 V

■ Integrated IGBT Protection

– Desaturation Detection

– “Soft” IGBT Turn-Off

– Automatic Fault Reset after Fixed Mute Time,

Typically 33 µs

– Under-Voltage Lockout (UVLO) with Hysteresis

■ Fast Switching Speed Over Full Operating

Temperature Range

– 250 ns Maximum Propagation Delay

– 100 ns Maximum Pulse Width Distortion

■ Extended Industrial Temperate Range:

– –40°C to 100°C

■ Safety and Regulatory Approvals

– UL1577, 4,243 VRMS for 1 Minute

– DIN-EN/IEC60747-5-5:

1,414 VPEAK Working Insulation Voltage Rating

8,000 VPEAK Transient Isolation Voltage Rating

■ 8 mm Creepage and Clearance Distances

Applications

■ AC and Brushless DC Motor Drive

■ Industrial Inverter

■ Uninterruptible Power Supply

■ Induction Heating

■ Isolated IGBT/Power MOSFET Gate Drive

©2014 Fairchild Semiconductor Corporation

FOD8333 Rev. 1.0.3

Description

The FOD8333 is an advanced 2.5 A output current IGBT

drive optocoupler capable of driving medium-power

IGBTs with ratings up to 1,200 V and 150 A. It is suited

for fast-switching driving of power IGBTs and

MOSFETs in motor-control inverter applications and

high-performance power systems. The FOD8333 offers

protection features necessary for preventing fault condi-

tions that lead to destructive thermal runaway of IGBTs.

The device utilizes Fairchild’s proprietary Optoplanar®

coplanar packaging technology and optimized IC design

to achieve reliable high isolation and high noise immunity,

characterized by high common-mode rejection and power

supply rejection specifications. The device is housed in a

wide-body, 16-pin, small-outline, plastic package.

The gate-driver channel consists of an aluminum gallium

arsenide (AlGaAs) light-emitting diode (LED) optically

coupled to an integrated high-speed driver circuit with a

low-RDS(ON) MOSFET output stage. The fault-sense

channel consists of an AlGaAs LED optically coupled to

an integrated high-speed feedback circuit for fault

sensing.

Related Resources

■ FOD8316—2.5 A Output Current, IGBT Drive

Optocoupler with Desaturation, Isolated Fault Sensing

■ FOD8318—2.5 A Output Current, IGBT Drive

Optocoupler with Active Miller Clamp, Desaturation

Detection, and Isolated Fault Sensing

■ FOD8332—Input LED Drive, 2.5 A Output Current,

IGBT Drive Optocoupler with Desaturation Detection,

Isolated Fault Sensing, and Active Miller Clamp

■ AN-3009—Standard Gate-Driver Optocouplers

www.fairchildsemi.com

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