1458 Optocoupler Datasheet !!exclusive!! | 2025 |

(Voltage Output High): The minimum voltage measured at the output when the component is in a logic "HIGH" state. 4. Isolation Voltage ( VISOcap V sub cap I cap S cap O end-sub

Here are the headline features you'd typically see on the datasheet's first page:

or 8-pin widebody package, ensuring long-term reliability in harsh environments. Isolation:

Whether you are interfacing with or direct power semiconductors Share public link

Provides high transient immunity (up to 50 kV/μs), which protects signals from high-frequency noise. Hermetic Sealing: Packaged in a hermetically sealed SOP-8 1458 optocoupler datasheet

: Used as a feedback element in switched-mode power supplies (SMPS). Comparison Note

provides robust galvanic isolation, protecting your low-voltage control circuitry from high-voltage transients on the output side. 5. Propagation Delay ( tPLHt sub cap P cap L cap H end-sub tPHLt sub cap P cap H cap L end-sub

Features a remarkably low propagation delay—typically around 35 ns at 10 kHz —enabling high-frequency data rates and precise signal timing.

) accurately using Ohm's Law. Driving the LED too hard can degrade its lifespan, while under-driving it may cause unreliable switching. Final Thoughts (Voltage Output High): The minimum voltage measured at

By creating a secure optical transmission path, the HCPL-1458 eliminates ground loops, mitigates high-frequency common-mode noise, and safeguards sensitive processing units like microcontrollers from catastrophic voltage spikes. Core Specifications & Key Features

Design a physical "keep-out" zone or slot in the PCB substrate directly beneath the IC package between the input and output pins. Do not run any signal or power traces through this buffer zone. Bypass Capacitors: Place a ceramic bypass capacitor between Pin 8 ( VCCcap V sub cap C cap C end-sub ) and Pin 5 ( GNDcap G cap N cap D

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 ?

To help you get the exact specifications for your project, could you tell me the (e.g., HCPL, H11, etc.) or the specific voltage level you are isolating? I can provide tailored calculations or specific suffix data based on those details. Share public link Isolation: Whether you are interfacing with or direct

Provides high galvanic isolation, often rated at 3,750 to 5,000 VRMScap V sub cap R cap M cap S end-sub for one minute.

The 1458 optocoupler is widely used in a variety of applications where high voltage insulation and efficient signal transfer are required. Some of the common applications include:

Unlike legacy high-speed optocouplers that require a rigid 5V supply, the HCPL-1458 thrives between . This makes it perfectly tailored for battery-powered systems, IoT nodes, and modern low-power microcontrollers operating on a 3.3V bus. High-Speed Propagation Low Delay