1458 Optocoupler Datasheet ((exclusive))
The photons strike the base area of the internal phototransistor. This generates electron-hole pairs in the semiconductor material, producing a base current.
Its high data rate capability makes it an ideal fit for isolated fieldbus communications, including , operating across distinct ground planes. 3. Power Transistor Gate Drivers
The LED side of the optocoupler requires a specific amount of current to turn on. The
(often referred to simply as the 1458 optocoupler) is a high-performance, hermetically sealed high-speed optocoupler 1458 optocoupler datasheet
VCE(sat)cap V sub cap C cap E open paren s a t close paren end-sub ): Maximum 0.4 V ( Switching Performance 3.0 µs to 5.0 µs ( Turn-Off Time ( tofft sub o f f end-sub ): 3.0 µs to 5.0 µs ( Understanding the Current Transfer Ratio (CTR)
If your part is an 8-pin SOIC or DIP high-speed logic gate optocoupler, this is the component you need. Manufacturer: Avago Technologies / Broadcom Key Features:
Note: The 1458 features faster response times than standard phototransistor optocouplers, making it suitable for low-to-medium speed data transmission (up to 1-2 MBd). Common-Mode Rejection (CMR) 10,000 The photons strike the base area of the
High CMR indicates that the device can successfully reject transient noise spikes between the input and output grounds without triggering false outputs. 5. Typical Application Circuits Circuit 1: Microcontroller Interfacing (Logic Isolation)
This comprehensive guide breaks down the essential technical details found in a standard 1458 optocoupler datasheet, detailing its internal architecture, electrical characteristics, pinout configuration, and practical application circuits. 1. What is the 1458 Optocoupler?
Typically ranges from 20% to 300% depending on the specific binning suffix (e.g., -1, -2, -3). Measured at Collector-Emitter Saturation Voltage ( isolation rating guaranteed by the datasheet
Imagine you found a scrap optocoupler labeled "1458" (maybe a counterfeit or house number). How do you test it?
isolation rating guaranteed by the datasheet, the physical board layout must adhere to strict creepage and clearance safety guidelines:
Circuit 1: Microcontroller interfacing with a 24V Industrial Load