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HCPL-3120-000E

HCPL-3120-000E

Broadcom Limited
2.5A Gate Driver Optical Coupling 3750Vrms 1 Channel 8-DIP
Active2,030 in stock

Overview

The HCPL-3120-000E is a 2.5A peak output current gate drive optocoupler designed to drive power IGBTs and MOSFETs in high-voltage switching applications. It provides 3750Vrms galvanic isolation between the low-voltage control circuitry and the high-power stage, ensuring signal integrity and safety in noisy environments.

Why Choose This Part

This driver features high-speed performance with typical rise and fall times of 100ns, alongside Under Voltage Lock Out (UVLO) protection with hysteresis to prevent power-on transients from damaging switches. Its 2.5A peak output current allows it to drive most medium-power IGBTs directly without requiring an additional buffer stage.

Applications

Industrial Inverters
Used to drive the high-side and low-side IGBT switches in variable frequency drives for AC motors.
Brushless DC Motor Drives
Provides the necessary peak current to charge and discharge gate capacitance in high-speed BLDC motor controllers.
Switch Mode Power Supplies
Serves as an isolated driver for MOSFETs in high-efficiency DC-DC converters and industrial power modules.
Uninterruptible Power Supplies
Maintains isolation and high-speed switching for power conversion stages in critical power infrastructure.

Key Specifications

Technology Optical Coupling
Mounting Type Through Hole
Package / Case 8-DIP (0.300", 7.62mm)
Approval Agency CSA, UR
Number of Channels 1
Voltage - Isolation 3750Vrms
Current - Peak Output 2.5A
Operating Temperature -40degC ~ 100degC
Rise / Fall Time (Typ) 100ns, 100ns
Supplier Device Package 8-DIP
Voltage - Output Supply 15V ~ 30V
Current - Output High, Low 2A, 2A
Pulse Width Distortion (Max) 300ns
Voltage - Forward (Vf) (Typ) 1.5V
Current - DC Forward (If) (Max) 25 mA
Propagation Delay tpLH / tpHL (Max) 500ns, 500ns
Common Mode Transient Immunity (Min) 25kV/us

Getting Started

When designing with the HCPL-3120, place a 0.1uF bypass capacitor as close as possible to the VCC and VEE pins to handle the high-peak switching currents. For evaluation, ensure the input LED current is driven between 7mA and 16mA to guarantee switching performance across the full -40C to 100C temperature range.

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