Just remember to double-check that you haven't accidentally picked up a 1458 Op-Amp!
For a traditional phototransistor output, CTR is a key indicator of efficiency. However, for the HCPL-1458 high-speed series, which often has a logic gate output, this is sometimes less relevant than its speed characteristics.
Turn on a 12V relay using a 5V Arduino.
The following specifications represent the typical characteristics of the (and similar 4-pin DIP optocouplers like the PC817, which shares a nearly identical footprint and application).
: High-speed digital signal switching and line receivers. 1458 optocoupler datasheet
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Note: Access to the phototransistor's base (Pin 6) allows engineers to fine-tune the transistor's switching characteristics, adjust sensitivity, or add a leakage resistor to ground to improve turn-off times. 3. Absolute Maximum Ratings Just remember to double-check that you haven't accidentally
According to the , the component boasts several standout characteristics:
Here are the headline features you'd typically see on the datasheet's first page: Turn on a 12V relay using a 5V Arduino
Internal isolation spacer; must be left floating on the PCB layout.
Unlike traditional couplers, the HCPL-1458 is optimized for modern 3.3V and 5V digital systems, offering high common-mode rejection (CMR) and low propagation delay. Key Features of the HCPL-1458