A1458 Optocoupler Datasheet __exclusive__ Jun 2026

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A1458 Optocoupler Datasheet __exclusive__ Jun 2026

Though this is a logic gate, understanding the ratio of output current to input current helps ensure your input signal is strong enough to trigger the output. Switching Characteristics: Look at the rise ( ) and fall (

, which allows the device to maintain signal integrity even in environments with severe electromagnetic interference. Supply Voltage ( cap V sub cap C cap C end-sub : Operates between 4.5 V and 5.5 V , compatible with standard TTL and CMOS logic levels. Output Type Open Collector

While specific pinouts can vary by sub-model, a standard high-speed 8-pin optocoupler typically follows this structure: NC (No Connection) or specific bias pins. Pin 2: Anode (+) of the internal LED. Pin 3: Cathode (-) of the internal LED. Pin 5: GND (Ground). Pin 6: VOcap V sub cap O (Output voltage). Pin 7: VEcap V sub cap E (Enable) or NC. Pin 8: VCCcap V sub cap C cap C end-sub (Supply voltage). HCPL-1458/ A1458 - Broadcom - Price, Inventory & Datasheets

The CTR is not linear. It peaks at a certain forward current range (usually between 5mA and 15mA). Designing circuits with too little or too much input current can cause a dramatic drop in performance. a1458 optocoupler datasheet

) close to the power supply pins of the isolated side to filter out high-frequency switching noise.

Features an integrated insulating layer to provide robust electrical isolation between input and output. Output Type: Typically features an open collector output

Features a logic gate output, making it directly compatible with TTL and CMOS systems. Though this is a logic gate, understanding the

TOP VIEW (SOP-8 / DIP-8) +---------\_/---------+ Pin 1 | [•] Anode VCC | Pin 8 Pin 2 | Cathode VO | Pin 7 (Output Signal) Pin 3 | NC NC | Pin 6 Pin 4 | NC GND | Pin 5 +---------------------+ Pin Description Table Single Channel, High Speed Optocouplers Technical Data

| Parameter | Symbol | Min | Max | Unit | |----------------------------|--------|------|-------|-------| | Forward current (LED) | IF | - | 50 | mA | | Reverse voltage (LED) | VR | - | 6 | V | | Collector-emitter voltage | VCEO | - | 80 | V | | Emitter-collector voltage | VECO | - | 7 | V | | Collector current | IC | - | 50 | mA | | Total power dissipation | Ptot | - | 150 | mW | | Isolation voltage (1 min) | VISO | - | 5000 | Vrms | | Operating temperature | Topr | -55 | +110 | °C | | Storage temperature | Tstg | -55 | +125 | °C |

: It features an Open Collector output that is TTL-compatible , making it easy to interface directly with microcontrollers and logic gates. Common Applications : Motor Drives : Controlling speed and torque in AC motors. Output Type Open Collector While specific pinouts can

Ideal for isolating communication lines, reducing crosstalk, and protecting equipment from surge voltages.

) is a high-speed, single-channel optocoupler designed for isolation in high-performance switching applications. It is typically manufactured by Broadcom (formerly Avago Technologies).

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