Product Overview
The 500021081 from Broadcom is a high-speed optocoupler with 15 MBd data rate and 5000 V RMS isolation voltage. It provides reliable galvanic isolation for digital communication between high-voltage and low-voltage domains in industrial and power electronics.
Key Specifications
| Function | High-speed optocoupler |
| CTR | 20% min at IF=16mA |
| Data Rate | 15 MBd |
| Isolation Voltage | 5000 V RMS |
| CTR Degradation | Low |
| Package | DIP-6 (7.62×6.35mm) |
Working Principle
An infrared LED on the input side emits light proportional to forward current. A photodetector IC on the output side converts the optical signal back to electrical, providing galvanic isolation rated at 5000 V RMS. The integrated detector amplifier achieves 15 MBd data rate with stable CTR over time and temperature.
Applications
- Power supply feedback isolation
- Industrial communication isolation
- Motor drive signal isolation
- Medical equipment isolation