1458 Optocoupler Datasheet Link

Range: Can typically operate across a broad spectrum of supply voltages, enhancing design flexibility.

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The 1458 optocoupler integrates an Infrared Light Emitting Diode (IR LED) optically coupled to a silicon NPN phototransistor within a single compact package.

A common use case for the 1458 optocoupler is isolating a 3.3V or 5V MCU from a noisy industrial subsystem (like a 12V or 24V relay control matrix). 1458 optocoupler datasheet

: Certified to work reliably from -40∘Cnegative 40 raised to the composed with power C +100∘Cpositive 100 raised to the composed with power C across harsh industrial environments. Core Applications

Protecting sensitive digital controllers from high-voltage noise in industrial machinery.

When a forward current flows through the input LED, it emits infrared light. This light spans the internal isolation gap and strikes the base-collector junction of the adjacent phototransistor. The photons generate electron-hole pairs, inducing a base current that switches the transistor into a conductive state. Because the connection is purely optical, there is no electrical path between the input and output terminals. Pin Configuration and Package Styles Range: Can typically operate across a broad spectrum

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

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

These parameters represent the predictable performance metrics of the 1458 optocoupler under specific operational windows. Input Characteristics Typical 1.25 V, Maximum 1.65 V ( Reverse Current ( IRcap I sub cap R ): Typical 0.1 µA, Maximum 10 µA ( Junction Capacitance ( CJcap C sub cap J ): Typical 25 pF ( Output Characteristics Collector-Emitter Dark Current ( ICEOcap I sub cap C cap E cap O end-sub ): Typical 1.0 nA, Maximum 100 nA ( Collector-Emitter Breakdown Voltage ( BVCEOcap B cap V sub cap C cap E cap O end-sub ): Minimum 50 V ( Emitter-Collector Breakdown Voltage ( BVECOcap B cap V sub cap E cap C cap O end-sub ): Minimum 7.0 V ( Transfer Characteristics The search will focus on finding the datasheet

: Protecting low-voltage control systems from the high voltages used in AC or DC motor drives.

Standard optocouplers suffer from high base-collector capacitance, slowing down switching times. The HCPL-1458 utilizes a . This layout slashes internal capacitance, dropping propagation delay to an ultra-fast 35 ns , supporting seamless high-frequency digital communication. Robust Transient Immunity