) is a high-speed, logic-gate optocoupler designed for robust electrical isolation in demanding industrial and telecommunication environments. Performance Highlights High-Speed Signal Integrity
As environment temperatures rise, the maximum allowable collector power dissipation falls, meaning maximum system current must be derated. 6. Applications of the A1458 Optocoupler
Features a maximum propagation delay (
These values make the A1458 suitable for signals up to . For higher frequencies (e.g., >200 kHz), consider a high-speed optocoupler like the 6N137.
Efficient input LED dynamics require minimal drive current from standard 3.3V or 5V logic families. 2. Internal Architecture and Pin Configuration a1458 optocoupler datasheet
High noise immunity, typically 15 kV/µs to 50 kV/µs , essential for preventing false triggers in noisy industrial settings.
). 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 HCPL-1458 from AVAGO/AGILENT manufacturer is a IC Chips with Hermetically Sealed, Low IF, Wide VCC, High Gain Optocouplers. Veswin Electronics HCPL-1458 | Original stock,Price - Ovaga Technologies
Achieves an incredibly tight propagation delay package ( ) is a high-speed, logic-gate optocoupler designed for
The light travels through an internal transparent insulation barrier (dielectric channel) toward the output photodetector.
Offers electrical isolation up to 5300 VRMScap V sub cap R cap M cap S end-sub (with variations down to 3750 VRMScap V sub cap R cap M cap S end-sub
The (commonly referred to as the HCPL-1458 ) is a high-speed, logic-gate optocoupler designed for isolation in high-performance digital and power systems . It is primarily manufactured by brands such as Broadcom/Avago (formerly Agilent) . Key Technical Specifications
R2=VOutputISaturation=12V2mA=6kΩcap R sub 2 equals the fraction with numerator cap V sub cap O u t p u t end-sub and denominator cap I sub cap S a t u r a t i o n end-sub end-fraction equals the fraction with numerator 12 V and denominator 2 mA end-fraction equals 6 k cap omega (A standard resistor works optimally). 8. Troubleshooting and Implementation Best Practices Applications of the A1458 Optocoupler Features a maximum
Need help comparing the A1458 to a modern drop-in replacement? Let me know your specific use case (e.g., motor drive, SMPS feedback, or Arduino isolation).
A good A1458 datasheet will show three standard applications:
| Parameter | Symbol | Min. | Typ. | Max. | Unit | Notes | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | | IF | – | – | 20 | mA | Absolute Maximum Rating | | Input Forward Voltage | VF | – | 1.3 | 1.7 | V | At IF = 13mA | | Reverse Input Voltage | VR | – | – | 5 | V | Absolute Maximum Rating | | Supply Voltage | VCC | 4.5 | – | 5.5 | V | Recommended Operating Condition | | Output Current | IO | – | – | 8 | mA | Absolute Maximum Rating | | Current Transfer Ratio (CTR) | CTR | 15 | – | 30 | % | The ratio of output current to input current | | Data Rate | – | – | 15 | – | Mbps | Maximum signaling speed | | Propagation Delay | tPHL, tPLH | – | 45 | – | ns | Time for signal to pass from input to output | | Isolation Voltage | VISO | – | – | 3750 | Vrms | Withstand voltage for 1 minute | | Operating Temperature | TA | -40 | – | +100 | °C | Industrial temperature range |
It is very common for the letters "PC" to be misread as "A" or for prefixes to be dropped in casual notation. The is a standard 4-pin optocoupler.