HCPL-3120 Datasheet

High CMR/ High Speed TTL Compatible Optocouplers


The HCPL-315X consists of a 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.

• 0.5 A Minimum Peak Output Current
• 15 kV/µs Minimum Common Mode Rejection (CMR) at VCM = 1500 V
• 1.0 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
• 0.5 µs Maximum Propagation Delay
• +/– 0.35 µs Maximum Delay Between Devices/Channels
• Industrial Temperature Range: -40°C to 100°C
• HCPL-315J: Channel One to Channel Two Output Isolation = 1500 Vrms/1 min.
• Safety and Regulatory Approval: UL Recognized (UL1577) 3750 Vrms/1 min. IEC/EN/DIN EN 60747-5-2
Approved VIORM = 630 Vpeak (HCPL-3150 Option 060 only) VIORM = 891 Vpeak (HCPL-315J) CSA Certified

• Isolated IGBT/MOSFET Gate Drive
• AC and Brushless DC Motor Drives
• Industrial Inverters
• Switch Mode Power Supplies (SMPS)
• Uninterruptable Power Supplies (UPS)



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