HCPL-3120 Electronic Linear Integrated Circuits Output Current IGBT Gate Drive Optocoupler
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2.0 Amp Output Current IGBT Gate Drive Optocoupler HCPL-3120
Features • 2.0 A Minimum Peak Output Current • 15 kV/µs Minimum Common Mode Rejection (CMR) at VCM = 1500 V • 0.5 V Maximum Low Level Output Voltage (VOL) Eliminates Need for Negative Gate Drive • ICC = 5 mA Maximum Supply Current • Under Voltage Lock-Out Protection (UVLO) with Hysteresis • Wide Operating VCC 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 VIORM = 630 Vpeak (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 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 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.
Functional Diagram
Absolute Maximum Ratings
Notes: 1. Derate linearly above 70°C free-air temperature at a rate of 0.3 mA/°C. 2. Maximum pulse width = 10 µs, maximum duty cycle = 0.2%. This value is intended to allow for component tolerances for designs with IO peak minimum = 2.0 A. See Applications section for additional details on limiting IOH peak. 3. Derate linearly above 70°C free-air temperature at a rate of 4.8 mW/°C. 4. Derate linearly above 70°C free-air temperature at a rate of 5.4 mW/°C. The maximum LED junction temperature should not exceed 125°C.
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