Optocouplers (also known as optoisolators) are fundamental components in mixed-signal systems, providing electrical isolation between low-voltage control circuits and high-voltage power stages. A datasheet for any optocoupler contains critical information for safe and effective circuit design. However, a search for a "1458 optocoupler datasheet" yields no matching results from major manufacturers (Vishay, Sharp, Toshiba, Renesas, Everlight).
The HCPL-1458 generally follows the standard high-speed optocoupler pinout: Description No internal connection 2 Input LED anode 3 Input LED cathode 4 No internal connection 5 6 VOcap V sub cap O Output voltage (Open collector) 7 No internal connection (or sometimes VEcap V sub cap E 8 VCCcap V sub cap C cap C end-sub Positive supply voltage Typical Applications 1458 optocoupler datasheet