1458 Optocoupler Datasheet |best| -

Maintain adequate air separation between components on either side of the isolation plane to prevent high-voltage arcing.

The is a high-performance, high-speed optocoupler optimized for low-voltage signal isolation. Manufactured by Broadcom (formerly Avago Technologies), this device features a GaAsP LED optically coupled to an integrated high-gain photodetector . It provides up to 3750 Vrms of electrical isolation to protect sensitive logic circuits from high-voltage spikes, eliminate ground loops, and minimize common-mode noise in demanding digital environments. Core Specifications Overview

Connect a current-limiting resistor to the (Pin 1) to set the correct input current from your microcontroller. Connect the Cathode (Pin 2) to your input ground. Connect VCCcap V sub cap C cap C end-sub 1458 optocoupler datasheet

The "1458 optocoupler" datasheet is your gateway to understanding a family of high-performance, reliable isolation components from Broadcom. Whether you are designing an industrial motor drive, a robust data communication interface, or a safety-critical medical device, these devices offer the speed, isolation, and noise immunity required for demanding applications.

The 1458 optocoupler datasheet provides a detailed list of specifications that define the device's performance and characteristics. Some of the key specifications include: It provides up to 3750 Vrms of electrical

Non-connected (NC) pins or secondary grounds depending on specific packaging sub-variants.

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The HCPL-1458 is characterized by its high common-mode rejection and speed, making it suitable for demanding industrial environments. Typical Value Description Maximum signal transmission speed Propagation Delay 4 µs (typical) Signal delay time from input to output Isolation Voltage 3750 Vrms to 5300 Vrms Maximum rated isolation Operating Voltage (Vcc) 4.5 V to 5.5 V Standard logic-level supply voltage Operating Temperature -40°C to +85°C Range for industrial applications Current Transfer Ratio 60% (minimum) Ratio of output current to input current Pinout Configuration

Operating the device beyond these limits can cause permanent physical degradation or immediate component failure. All ratings are measured at an ambient temperature ( TAcap T sub cap A ) of 25°C unless otherwise specified. Input (Emitter) 60 mA Reverse Voltage ( VRcap V sub cap R ): 6.0 V Power Dissipation ( PDcap P sub cap D ): 100 mW Output (Detector) Collector-Emitter Voltage ( VCEOcap V sub cap C cap E cap O end-sub ): 50 V Emitter-Collector Voltage ( VECOcap V sub cap E cap C cap O end-sub ): 7.0 V Collector Current ( ICcap I sub cap C ): 50 mA Power Dissipation ( PCcap P sub cap C ): 150 mW Total Component Isolation Test Voltage ( VISOcap V sub cap I cap S cap O end-sub ): 5300 VRMScap V sub cap R cap M cap S end-sub (1 Minute) Operating Temperature Range ( TAMBcap T sub cap A cap M cap B end-sub ): -55°C to +100°C Storage Temperature Range ( TSTGcap T sub cap S cap T cap G end-sub ): -55°C to +150°C Soldering Temperature (10 seconds): 260°C Electrical Characteristics

If you have a component mislabeled as a "1458 optocoupler" in your BOM, here is what it is actually used for:

, allowing for seamless integration into both 3.3V and 5V logic systems. Low Drive Power : Requires low forward current ( cap I sub cap F