ACPL-K376-500E

ACPL-K376-500E is a high-speed, optically isolated gate-driver from Broadcom (Avago) in the ACPL-K family. It provides galvanic isolation between a low-voltage control side and a high-voltage power side, enabling safe, fast driving of IGBTs/MOSFETs in power electronics such as motor drives, inverters, and switch-mode supplies. The device combines an LED input, a fast optical receiver, and a push-pull output to deliver rapid, gate-ready signals while maintaining isolation.
Key features (typical):
- Isolation voltage up to about 5 kV RMS (reinforced variants may differ)
- Fast propagation delay (t_pd in the tens of nanoseconds)
- To-to-pole (sourcing/sinking) output to drive gate capacitances
- Logic-compatible input and wide operating temperature range
- Available in 8-pin packages (SO-8/DIP-8)
Applications:
- Gate driving for IGBTs/METs
- Isolated control in power converters, solar inverters, motor controllers
Note: Check the official datasheet for exact electrical specs (Vcc, input current, output current, CTR, timing) for this exact revision, as numbers vary by version.

Equivalent high-speed optocouplers to ACPL-K376-500E include:
• Avago/HP 6N137 and HCPL-0631
• Broadcom ACPL-K76L-500E and ACPL-M61L series
• ON Semiconductor FODM3013
• Vishay IL600 series
• TI ISO722/ISO732 digital isolators
• Analog Devices ADuM125x series
Always verify that data-rate, logic-level compatibility and isolation voltage match your application.

ACPL-K376-500E is a high‑speed optocoupler from the ACPL‑K3xx family. Key features (typical):
- Reinforced isolation between input and output (up to about 5 kVrms)
- Logic/TTL‑level input LED
- Transistor output (gate‑drive style) suitable for IGBT/MOSFET gates
- Fast propagation delay (tPHL/tPLH in the tens of nanoseconds)
- High common‑mode transient immunity for fast switching environments
- Output supply typically 4.5–5.5 V
- Wide operating temperature: approximately -40 to +125 C
- Package options: 8‑pin (DIP/SO‑8), Pb‑free
- Safety/regulatory approvals may vary by version (UL/CSA where applicable)
Note: CTR and exact electrical specs vary by LED current and temperature; consult the datasheet for precise numbers and test conditions.

- Pin count: 8 pins (8-pin DIP/SOIC package).
- Function (summary): The ACPL‑K376‑500E is a high‑speed digital optocoupler (galvanic isolation device). Its pins provide the input LED connections (anode and cathode), power rails (VCC and GND), the logic output transistor/photodiode terminals (collector/output and emitter), and one or more no‑connect/test pins depending on the package. It is used to transmit digital signals across an isolation barrier while protecting circuitry from high common‑mode voltages.

The ACPL‑K376‑500E is manufactured by Broadcom Inc. (originally Avago Technologies, formerly part of Agilent/Hewlett‑Packard spin‑offs). Broadcom is a multinational semiconductor company that designs and supplies semiconductor devices and optoelectronic components (the ACPL series are optocouplers/optical isolators).

The ACPL‑K376‑500E is supplied in an 8‑pin dual in‑line plastic package (DIP‑8); some sources also list an 8‑pin SOIC (SO‑8) surface‑mount variant—verify the exact package in the official datasheet.