A1458 Optocoupler Datasheet - !link!
(often listed as HCPL-A1458 ) is a high-speed, single-channel optocoupler designed for robust signal isolation in demanding industrial and power applications. Manufactured by brands like Avago (Broadcom)
(often referred to by its full part number HCPL-A1458 ) is a high-speed logic gate optocoupler manufactured by Broadcom (formerly Avago/Agilent). Designed for high-performance industrial and digital logic isolation, it is frequently used to protect low-voltage microprocessors from high-voltage transients in electrically "noisy" environments. 1. Key Technical Specifications a1458 optocoupler datasheet
that is TTL compatible, allowing it to interface directly with microcontrollers and digital logic. Common packages include (often listed as HCPL-A1458 ) is a high-speed,
, which is a dual operational amplifier (op-amp) and entirely different in function. STMicroelectronics schematic example of how to connect the A1458 to a microcontroller like an HCPL-A1458 | In Stock | Utsource Pin 1: Anode (LED positive) Pin 2: Cathode
- Pin 1: Anode (LED positive)
- Pin 2: Cathode (LED negative)
- Pin 3: Emitter (transistor source)
- Pin 4: Collector (transistor drain)
The Pull-Up Resistor: The output phototransistor is an "open collector." It acts like a switch to ground. To get a logic signal, you need a pull-up resistor (usually 1kΩ to 10kΩ) connected to the Collector pin.