1458 Optocoupler Datasheet Better [2025-2026]
The HCPL-1458 is a high-speed, dual-channel logic gate optocoupler often manufactured by Broadcom (formerly Avago/Agilent). It is designed for applications requiring robust electrical isolation and fast data transmission, such as industrial control and telecommunications. Key Specifications According to technical data, the HCPL-1458 features: Channels: 2 unidirectional channels. Data Rate: Up to 10 MBd (10 Mbps).
- Input: Connect a 220-ohm resistor in series with Pin 1. Drive Pin 2 with logic ground.
- Output: Connect a 10k resistor from Pin 5 to VCC (5V or 24V). Connect Pin 4 to your system ground. Read the logic level from Pin 5.
If you are certain your component is an optocoupler (often marked as a photocoupler or isolation IC), it is likely a standard 4-pin or 6-pin DIP optocoupler similar to the industry-standard PC817 or 4N35 series. 1458 optocoupler datasheet
3.4 Electrical Characteristics ($T_a = 25^\circ C$)
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit | | :--- | :---: | :--- | :---: | :---: | :---: | :---: | | Input | | | | | | | | Forward Voltage | $V_F$ | $I_F = 20 \text mA$ | - | 1.2 | 1.4 | V | | Reverse Current | $I_R$ | $V_R = 4 \text V$ | - | - | 10 | $\mu A$ | | Output | | | | | | | | Collector Dark Current | $I_CEO$ | $V_CE = 20 \text V$ | - | - | 100 | nA | | Transfer Characteristics | | | | | | | | Current Transfer Ratio | CTR | $I_F = 5 \text mA, V_CE=5\textV$ | 50* | - | - | % | | Saturation Voltage | $V_CE(sat)$ | $I_F = 20 \text mA, I_C=1\textmA$ | - | 0.1 | 0.2 | V | | Switching Times | | | | | | | | Rise Time | $t_r$ | $V_CC=5\textV, I_C=2\textmA$ | - | 4 | 18 | $\mu s$ | | Fall Time | $t_f$ | $R_L=100 \Omega$ | - | 3 | 18 | $\mu s$ | The HCPL-1458 is a high-speed, dual-channel logic gate
Speed and Timing: Designed for high-speed operation with typical propagation delays as low as 8 ns to 35 ns. Voltage Range: Operates within a flexible VCCcap V sub cap C cap C end-sub Input: Connect a 220-ohm resistor in series with Pin 1
Communications: Applied in data communication systems and automotive electronics. Note on Potential Confusion If your project involves the MC1458 Dual Op-Amp Go to product viewer dialog for this item.
5. Absolute Maximum Ratings (Ta = 25°C unless otherwise noted)
| Parameter | Symbol | Rating | Unit | |-----------|--------|--------|------| | Forward current (input) | ( I_F ) | 50 | mA | | Peak forward current (1 µs pulse, 300 pps) | ( I_FP ) | 1 | A | | Reverse voltage (input) | ( V_R ) | 6 | V | | Collector-emitter voltage (output) | ( V_CEO ) | 35 | V | | Emitter-collector voltage | ( V_ECO ) | 6 | V | | Collector current | ( I_C ) | 50 | mA | | Collector power dissipation | ( P_C ) | 150 | mW | | Total power dissipation | ( P_tot ) | 200 | mW | | Isolation voltage (1 minute) | ( V_ISO ) | 5000 | Vrms | | Operating temperature | ( T_opr ) | -55 to +110 | °C | | Storage temperature | ( T_stg ) | -55 to +125 | °C | | Soldering temperature (10 sec) | ( T_sol ) | 260 | °C |