1458 Optocoupler Datasheet Page

What (e.g., 5V TTL, 3.3V CMOS) are you driving the input with? What is the voltage of your isolated output side? Do you need help calculating the input LED resistor value ?

A multimeter, a 5V power supply, a 330-ohm resistor, a 10k resistor, and an LED.

A CTR < 100% means the optocoupler cannot drive an output current larger than the input current. For a microcontroller with I_F = 5mA, the maximum available I_C is at least 5mA (100% CTR).

– The emitter terminal of the output phototransistor. Typically connected to the output ground in common-emitter configurations. 1458 optocoupler datasheet

A high-gain NPN Phototransistor (often with the base pin exposed for external tuning and bias filtering). 2. Pin Configuration (DIP-6 Package)

| Parameter | Min | Typ | Max | Unit | |-----------|-----|-----|-----|------| | Input forward current | 1 | 10 | 20 | mA | | Supply voltage (output) | - | 5 | 24 | V | | Collector load resistance | 1 | 10 | 100 | kΩ | | Ambient temperature | -25 | 25 | 85 | °C |

: Protecting microcontrollers from high-voltage spikes and ground loops. What (e

Based on the HCPL-1458 datasheet , the device operates optimally within these parameters: VCCcap V sub cap C cap C end-sub 3.0 to 5.5 Input Current IFcap I sub cap F Propagation Delay tPLHt sub cap P cap L cap H end-sub tPHLt sub cap P cap H cap L end-sub Common Mode Immunity CMRcap C cap M cap R Isolation Voltage VISOcap V sub cap I cap S cap O end-sub Vrmscap V sub r m s end-sub Output Current IOcap I sub cap O Key Performance Drivers Low Power Consumption: With an ICCcap I sub cap C cap C end-sub

The —often associated with high-density multi-channel configurations like the ILD1458 or specialized phototransistor outputs—is a foundational component in modern electronics. It bridges the gap between high-voltage power domains and low-voltage digital control circuits. By using light to transmit signals across an isolation barrier, this component prevents catastrophic ground loops, suppresses electrical noise, and safeguards sensitive microcontrollers.

, which is not an optocoupler. However, if you are looking for an optocoupler with a similar designation, the Go to product viewer dialog for this item. A multimeter, a 5V power supply, a 330-ohm

isolation rating guaranteed by the datasheet, the physical board layout must adhere to strict creepage and clearance safety guidelines:

Found in the high-frequency switching stages of solar inverters, wind power systems, and uninterruptible power supplies (UPS).

: A similar high-speed optocoupler designed for digital logic grounding. A common 10 MBd high-speed optocoupler. The

maximum of only 1.2 mA, this optocoupler is highly efficient.