The HCPL-6751 from Broadcom is a high-reliability 4-channel hermetically sealed optocoupler designed for demanding isolation and signal-transfer applications. Each channel integrates a GaAsP LED optically coupled to a high-gain photodetector with a Darlington output stage, providing reliable electrical isolation between input and output circuits.
The device is designed for low-drive-current systems, with an input current requirement as low as 0.5mA, while supporting data rates up to approximately 100 kBd. It provides 1500VDC isolation voltage and is suitable for applications requiring high noise immunity and dependable signal isolation.
HCPL-6751 provides four independent isolation channels in a compact 16-pin hermetic flat-pack package. It supports operation across a wide temperature range of -55°C to +125°C, making it suitable for harsh environments and high-reliability electronic systems.
The device is manufactured on a MIL-PRF-38534 qualified production line and is intended for military, aerospace, transportation, industrial control, isolated line receivers, voltage-level shifting, and other high-reliability applications.
Key Features
- High-reliability optocoupler
- Number of channels: 4
- Output type: Darlington
- Data rate: approximately 100 kBd
- Low input current requirement: 0.5mA
- Isolation voltage: 1500VDC
- Maximum output voltage: 20V
- Output current: up to 40mA per channel
- Typical forward voltage: 1.4V
- Minimum current transfer ratio: 200% @ 5mA
- Hermetically sealed construction
- High radiation immunity
- Operating temperature: -55°C to +125°C
- Package: 16-pin Hermetic Flat Pack
- Mounting type: Surface Mount
- Suitable for MIL-PRF-38534 high-reliability applications
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