HCPL-3120 / A3120 Optocoupler gate driver IC DIP-8 SOP-8
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A3120 DIP (New)
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HCPL-3120 (A3120) — 2A Output Current Optocoupler Gate Driver
The HCPL-3120 (also known as A3120) is a high-performance optocoupler gate driver IC from Broadcom (formerly Avago/HP), designed for driving IGBTs and power MOSFETs with full galvanic isolation. With a 2A peak output current, fast propagation delay, and 2500V RMS isolation, it is the preferred isolated gate driver for industrial inverters, motor drives, and solar power systems.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | HCPL-3120 / A3120 |
| Type | Optocoupler Gate Driver |
| Isolation Voltage | 2500V RMS |
| Output Supply (V₂CC) | 15V – 30V |
| Peak Output Current | 2A source / 2A sink |
| Propagation Delay | typ. 500ns |
| Input LED Current (I₂F) | 7mA – 16mA |
| Packages | DIP-8 (A3120), SOP-8 (A3120S) |
Key Features
- 2500V RMS galvanic isolation — protects MCU from high-voltage power stage
- 2A peak output current — drives large IGBT/MOSFET gate capacitances
- Wide supply range 15V–30V — compatible with standard gate drive supplies
- Under-voltage lockout (UVLO) protection
- Available in DIP-8 and SOP-8 packages
Applications
- IGBT gate driving in 3-phase inverters
- Industrial motor drives and servo controllers
- Solar inverters and UPS systems
- Isolated DC-DC converters
- High-power switching power supplies