1458 Optocoupler Datasheet ((exclusive))

Complete Technical Guide and Datasheet Analysis for the "1458 Optocoupler"

| Parameter | Symbol | Rating | Unit | | :--- | :---: | :---: | :---: | | | | | | | Forward Current | $I_F$ | 50 | mA | | Peak Forward Current | $I_FM$ | 1.0 | A | | Reverse Voltage | $V_R$ | 6 | V | | Output (Detector) | | | | | Collector-Emitter Voltage | $V_CEO$ | 35 - 80* | V | | Emitter-Collector Voltage | $V_ECO$ | 6 | V | | Collector Current | $I_C$ | 50 | mA | | Total Device | | | | | Isolation Voltage | $V_ISO$ | 5000 | Vrms | | Operating Temperature | $T_opr$ | -30 to +100 | °C | | Storage Temperature | $T_stg$ | -55 to +125 | °C |

The device supports speeds up to 1 Mbit/s, with a maximum propagation delay ( tPHLt sub cap P cap H cap L end-sub tPLHt sub cap P cap L cap H end-sub ) of 8 ns. 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.

| If you need... | Buy this part number... | Key Datasheet spec | | :--- | :--- | :--- | | General purpose, cheap, DC switching | (DIP-4, smaller) | CTR 50-600%, VISO 5kV | | Robust, high isolation, classic | 4N35 (DIP-6) | CTR 100%, VISO 2.5kV | | High voltage (up to 70V) output | 4N36 | VCEO 70V | | AC input detection | H11AA1 | Contains two back-to-back LEDs | | Fast digital communication (1Mbps) | 6N137 | Logic output, 10ns propagation delay | | TRIAC driver for AC mains | MOC3021 | Zero-cross or random phase | Complete Technical Guide and Datasheet Analysis for the

Ground connection for the output photodetector circuit. Pin 6 ( VOUTcap V sub cap O cap U cap T end-sub

Here is the technical content for a . Since "1458" is not a standard industry part number for an optocoupler (it is typically associated with the dual operational amplifier), this datasheet assumes the 1458 refers to a general-purpose phototransistor optocoupler (similar to a 4N35 or PC817 but with a unique in-house marking). For actual use, please verify the manufacturer (e.g., Siemens, Vishay, or a Chinese brand). The slow response time of the optocoupler (10µs)

CTR is not linear across all current ranges. It typically peaks between 10 mA and 20 mA of forward current and drops off significantly below 1 mA. Application Circuit Design 1. Digital Logic Isolation (Microcontroller Interface)

This datasheet is for informational purposes only. Specifications subject to change without notice. Verify with original manufacturer before design-in.

Standard Dual-Channel (DIP-8) Pinout +---_---+ Anode 1 | 1 8 | Collector 2 Cathode 1 | 2 7 | Emitter 2 Anode 2 | 3 6 | Collector 1 Cathode 2 | 4 5 | Emitter 1 +-------+ Pin Descriptions

| Pin | Name | Function | | :--- | :--- | :--- | | | V⁺ (Anode) | Anode of the internal infrared LED (Input). | | 2 | V⁻ (Cathode) | Cathode of the internal infrared LED (Input). | | 3 | NC | Not Connected. | | 4 | GND | Ground connection for the output side. | | 5 | V₀ (Output) | Open-collector output of the photodetector. | | 6 | VCC (Cathode) | Power supply for the output side. | | 7 | NC | Not Connected. | | 8 | VE (Enable) | Output enable pin. |