Unlocking the : A Comprehensive Guide
The HCPL-1458 series is frequently used in industrial and high-reliability sectors: 1458 optocoupler datasheet
Mechanical switches bounce. An optocoupler can isolate the noisy switch from the delicate logic. The slow response time of the optocoupler (10µs) actually helps filter out high-frequency bounce. Unlocking the : A Comprehensive Guide The HCPL-1458
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 VCE(sat)cap V sub cap C cap E open
The photons strike the base area of the internal phototransistor. This generates electron-hole pairs in the semiconductor material, producing a base current.
VCE(sat)cap V sub cap C cap E open paren s a t close paren end-sub ]: Maximum 0.4 V ( Switching Speed (Typical) 2.0 to 5.0 Turn-Off Time ( tofft sub o f f end-sub ): 2.0 to 5.0