A1458 Optocoupler Datasheet ((full)) -

). Pin 5 goes to the industrial system ground. The output from Pin 6 can safely drive the gate of a power MOSFET or a Darlington transistor to toggle the actuator. Isolated RS-485/Modbus Data Communication

The A1458 is often associated with a general-purpose phototransistor output optocoupler, similar in class to the 4N35 or PC817 but with specific parametric differences. Always refer to the manufacturer’s official datasheet for the exact revision you are using (e.g., from Vishay, Everlight, or a generic Chinese brand). This article synthesizes typical specifications for the A1458 series.

What or switching frequency does your design require?

Used in solar and wind inverters to safely isolate control circuits from high-voltage DC or AC grid voltages.

Connect an MCU GPIO pin to Pin 1 via a current-limiting resistor ( ). Pin 2 connects to MCU Ground. a1458 optocoupler datasheet

Acts as a bridge for feedback in Switch-Mode Power Supplies (SMPS) and Uninterruptible Power Supplies (UPS).

Today, we are taking a deep dive into the datasheet of a specific workhorse in the industry: the . While often overshadowed by its famous cousin, the PC817, the A1458 holds its own as a reliable component for signal transmission and isolation.

Disclaimer: Always consult the official, latest datasheet from the manufacturer for specific voltage, current, and temperature ratings.

Note: All typical specifications and test conditions should be confirmed from the official manufacturer's datasheet, as variations may exist. Isolated RS-485/Modbus Data Communication The A1458 is often

, essential for protecting sensitive microcontrollers from high-voltage power stages. Key Specifications Up to 50 MBd Propagation Delay 20 ns (typical) Isolation Voltage Supply Voltage ( cap V sub cap C cap C end-sub 3.0V to 5.5V Operating Temp Typical Applications

Inside the package, pin 1 connects to the LED’s anode, pin 2 to its cathode. The phototransistor sits with its collector on pin 4 and emitter on pin 3. There is no base pin exposed; base current is generated solely by illumination.

Designed to operate efficiently across a broad range of input currents ( IFcap I sub cap F ), making it easy to drive with a standard GPIO pin.

The A1458 (HCPL-A1458) is a specialized high-speed optocoupler designed to provide galvanic isolation for IGBT and Power MOSFET gate driving in industrial motor drives and power supplies. Featuring an open-collector output, it offers 35 ns propagation delay and a robust operating range of -40°C to +100°C for high-noise environments. Technical specifications can be reviewed in the datasheet from Farnell . HCPL-A1458 | In Stock - utsource What or switching frequency does your design require

: Negative terminal connection for the internal infrared LED.

Understanding the A1458 Optocoupler Datasheet: Features, Pinout, and Technical Applications

across specific package selections like the SOP-8 or DIP-8 styles). The VCCcap V sub cap C cap C end-sub

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