Description

The IL300-I is a linear optocoupler that consists of an AlGaAs IRLED irradiating an isolated feedback and an output PIN photodiode in a bifurcated arrangement. This optocoupler utilizes a feedback photodiode to capture a percentage of the LED's flux, generating a control signal (IP1) that can be used to servo the LED drive current. This compensation technique helps to overcome the non-linear, time, and temperature characteristics of the LED. The output PIN photodiode produces an output signal (IP2) that is linearly related to the servo optical flux created by the LED.

Specifications and features

• Couples AC and DC signals
• 0.01% servo linearity
• Wide bandwidth, > 200 kHz
• High gain stability, ± 0.005 %/°C typically
• Low input-output capacitance
• Low power consumption, < 15 mW
• Isolation rated voltage 4420 VRMS
• Internal insulation distance, > 0.4 mm

Application Scenarios

• Power supply feedback voltage / current
• Medical sensor isolation
• Audio signal interfacing
• Isolated process control transducers
• Digital telephone isolation

Comparison

- The IL300-I is capable of coupling both AC and DC signals, making it versatile for various applications.

- It offers a high level of servo linearity with a deviation of only 0.01%.

- With a wide bandwidth of over 200 kHz, it can handle high-frequency signals without distortion.

- The optocoupler demonstrates high gain stability, with a deviation as low as ±0.005% per degree Celsius.

- It has a low input-output capacitance, reducing signal degradation.

- The IL300-I consumes low power, requiring less than 15 mW.

- It provides a high isolation rated voltage of 4420 VRMS, ensuring safe operation.

- The internal insulation distance is greater than 0.4 mm, further enhancing safety.

- No specific disadvantages have been identified for the IL300-I linear optocoupler.