1458 Optocoupler Datasheet Jun 2026

+24V Sensor Signal | [R_in] | +---+ (Pin 1) |-->| Input LED +---+ (Pin 2) | GND (24V System Ground) --------------------------------------- [Isolation Barrier] V_CC (+5V MCU Power) | [R_pullup] | +-----> To MCU GPIO Pin | +---+ (Pin 6) | / | Phototransistor |< | +---+ (Pin 5) | GND (MCU System Ground) Input Resistor ( Rincap R sub i n end-sub ): To target a safe driving current of from a 24V source:

: Operates efficiently with a maximum supply current ( ICCcap I sub cap C cap C end-sub

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

If you are working with industrial controls, logic ground isolation, or high-noise environments, the is a standout component. Originally developed by Hewlett-Packard (and subsequently produced by Avago Technologies and Broadcom), this high-gain optocoupler offers exceptional performance. 1458 optocoupler datasheet

Note: For the most accurate and up-to-date pinout, please consult the formal HCPL-1458 datasheet . Absolute Maximum Ratings

Pin 1: Anode Pin 2: Cathode Pin 3: No connection (NC) Pin 4: Emitter Pin 5: Collector Pin 6: Base (optional; leave open for standard operation)

: One of the most famous chips with this number. It is a dual version of the classic 741 operational amplifier, used for general-purpose analog signal processing. LTC1458 12-Bit DAC +24V Sensor Signal | [R_in] | +---+ (Pin

3.0V to 5.5V, offering flexibility for both 3.3V and 5V logic systems. Propagation Delay:

range of 3.0V to 5.5V, making it ideal for battery-powered or low-voltage systems.

Supports high-speed data transmission over isolation barriers. SOP-8 / DIP-8 (Hermetic) Compact surface-mount or rugged through-hole footprint. Output Type Open Collector Note: For the most accurate and up-to-date pinout,

A common use case for the 1458 optocoupler is isolating a 3.3V or 5V MCU from a noisy industrial subsystem (like a 12V or 24V relay control matrix).

Adhering to the absolute maximum ratings in the is crucial to prevent permanent damage to the device: Storage Temperature: -55°C to +125°C Operating Temperature: -40°C to +85°C Supply Voltage ( VCCcap V sub cap C cap C end-sub ): 0 to 7.0 V Input Current ( IINcap I sub cap I cap N end-sub ): Low-level currents specified for logic inputs. Output Voltage ( VOcap V sub cap O ): Max 7.0 V. Applications of the HCPL-1458 Optocoupler

The "1458 optocoupler" datasheet is your gateway to understanding a family of high-performance, reliable isolation components from Broadcom. Whether you are designing an industrial motor drive, a robust data communication interface, or a safety-critical medical device, these devices offer the speed, isolation, and noise immunity required for demanding applications.

The datasheet will usually include information on the package type, pin configuration, and dimensions.

| Parameter (Parameter) | Symbol (Simbol) | Value (Nilai) | Unit (Satuan) | Notes (Catatan) | | :--- | :--- | :--- | :--- | :--- | | | VCC | 4.5 to 5.5 | V | For the output side | | Forward Current (Input) | IF | 5 (typ), 20 (max) | mA | Typical operating current | | Forward Voltage (Input) | VF | 1.2 to 1.3 (typ), 1.7 (max) | V | Voltage drop across the input LED | | Output Current | IO | 8 (max) | mA | Maximum current the output can sink | | Current Transfer Ratio (CTR) | CTR | 15% to 30% (or >500%) | % | Varies greatly by variant. HCPL-A1458 has lower CTR; HCPL-1458-500E can be >500% | | Isolation Voltage | VISO | 3750 to 5300 | Vrms | Minimum isolation rating between input and output | | Maximum Data Rate | - | 1 to 15 | Mbps | Depends on the specific variant | | Propagation Delay | tPHL / tPLH | 8 to 45 | ns | Time for signal to pass through the device | | Operating Temperature | TA | -40 to +100 | °C | Wide temperature range for industrial use | | Common Mode Transient Immunity (CMTI) | - | 15 to 75 | kV/µs | Ability to reject noise on the power supply lines |