The 1458 optocoupler integrates an Infrared Light Emitting Diode (IR LED) optically coupled to a silicon NPN phototransistor within a single compact package.
Protecting microcontrollers from high-voltage transients in industrial environments. 1458 optocoupler datasheet
V(BR)CEOcap V sub open paren cap B cap R close paren cap C cap E cap O end-sub Breakdown Voltage ( The 1458 optocoupler integrates an Infrared Light Emitting
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit | | :--- | :---: | :--- | :---: | :---: | :---: | :---: | | | | | | | | | | Forward Voltage | $V_F$ | $I_F = 20 \text mA$ | - | 1.2 | 1.4 | V | | Reverse Current | $I_R$ | $V_R = 4 \text V$ | - | - | 10 | $\mu A$ | | Output | | | | | | | | Collector Dark Current | $I_CEO$ | $V_CE = 20 \text V$ | - | - | 100 | nA | | Transfer Characteristics | | | | | | | | Current Transfer Ratio | CTR | $I_F = 5 \text mA, V_CE=5\textV$ | 50* | - | - | % | | Saturation Voltage | $V_CE(sat)$ | $I_F = 20 \text mA, I_C=1\textmA$ | - | 0.1 | 0.2 | V | | Switching Times | | | | | | | | Rise Time | $t_r$ | $V_CC=5\textV, I_C=2\textmA$ | - | 4 | 18 | $\mu s$ | | Fall Time | $t_f$ | $R_L=100 \Omega$ | - | 3 | 18 | $\mu s$ | 1458 optocoupler datasheet
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