A1458 Optocoupler Datasheet

[ INPUT SIDE ] [ OUTPUT SIDE ] Pin 2 (Anode) ○───┐ ┌───○ Pin 8 (VCC) │ │ ▼ ──┐ ┌─┴─┐ ▲ │ │ │ Photodetector & └─┬─┘ └───┤ Logic Gate IC │ _│_│ Pin 3 (Cathode) ○────┘ /// │──○ Pin 6 (V_OUT) │ ─┴─ ○ Pin 5 (GND)

This is the most important table in any . Exceeding these values, even briefly, can destroy the device or compromise its isolation.

: Delivers impressive performance with typical propagation delays as low as and data rates reaching up to Exceptional Noise Immunity

The A1458 optocoupler family complies with various global safety standards, making it suitable for industrial and consumer products requiring safety certification: a1458 optocoupler datasheet

This article serves as a complete, engineer-focused guide to understanding, selecting, and implementing the A1458 optocoupler. It consolidates key information from official datasheets and reliable technical resources into a practical reference. You'll find a complete breakdown of technical specifications, practical application circuit guidance, a datasheet reading guide, and details on procurement and alternatives.

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This comprehensive technical guide breaks down the core data sheet specifications, structural pin configurations, specific application design criteria, and deployment best practices for the A1458 device family. Core Technical Specifications Overview [ INPUT SIDE ] [ OUTPUT SIDE ]

The A1458 is not an ultra-high-speed device (like a logic gate optocoupler, e.g., 6N137), but it is adequate for most power supply feedback and low-speed data isolation (< 50 kHz).

ONSEMI, DC Input Logic Gate Output Optocoupler, Through Hole, 8-Pin Dip (5 Ct), FOD260L Optimized for high data rate systems. or a specific circuit schematic for integrating this into a motor driver project? HCPL-1458 AVAGO/AGILENT Optocoupler / Led / Infrared

) maxing out at , or rated at 35 ns at 10 kHz depending on the specific biasing test configurations. This permits high data-rate logic communication without introducing latency issues. It consolidates key information from official datasheets and

| Pin Number | Name | Function | | :--- | :--- | :--- | | 1 | NC | No Connect | | 2 | ANODE | Anode (+) of the input LED | | 3 | CATHODE | Cathode (-) of the input LED | | 4 | NC | No Connect | | 5 | GND | Ground connection for the output side | | 6 | VO | Output Voltage (open-collector output) | | 7 | VCC | Positive supply voltage for the output side | | 8 | GND | Ground connection for the output side |

IC=IF×CTR=10mA×1.0=10mAcap I sub cap C equals cap I sub cap F cross CTR equals 10 mA cross 1.0 equals 10 mA

The result: a compact, inexpensive driver that met safety and performance goals — all because Mara treated the A1458 datasheet as more than a sheet of numbers. It became a design checklist: electrical limits, timing, thermal behavior, and safety constraints — the practical guidance that turned a part’s specifications into a working, dependable product.

Understanding the exact absolute maximum ratings and electrical characteristics guarantees long-term component reliability. Below is the summary of technical specifications derived from the Avago/Broadcom HCPL-1458 technical data sheets : Specification Value Context / Conditions 1 Mb/s (Typical) High-speed logic switching Isolation Voltage ( VISOcap V sub cap I cap S cap O end-sub ) 3750 to 5300 VRMScap V sub cap R cap M cap S end-sub Per UL1577 standards (1 minute duration) Common Mode Rejection (CMR) 15 kV/µs to 50 kV/µs At high common-mode voltages ( VCMcap V sub cap C cap M end-sub Supply Voltage Range ( VCCcap V sub cap C cap C end-sub ) 4.5V to 15V (Wide VCCcap V sub cap C cap C end-sub architecture) Flexible dual-rail operational setups Supply Current ( ICCcap I sub cap C cap C end-sub ) 1.2 mA (Maximum) Optimized for low-power digital designs Propagation Delay Max ( ) 8 ns to 300 ns Highly configuration-dependent Output Type Open Collector / Push-Pull Dependent on the exact suffix variant Operating Temperature Range -40°C to +100°C Industrial or automotive environments Internal Architecture & Mechanical Packages

Used in solar and wind turbine inverters , motor drive inverters, and Variable Frequency Drives (VFDs).