1458 Optocoupler Datasheet Page
According to the , the device boasts several high-performance features that make it suitable for industrial and communication applications: Low-Voltage Operation: Operates effectively within a wide VCCcap V sub cap C cap C end-sub
| Feature | Description / Typical Value | Key Benefit | | :--- | :--- | :--- | | | Data rates up to 15 Mbit/s; typical t PHL /t PLH propagation delays are often as low as 8 ns . | Enables fast and reliable digital communication, suitable for high-speed data transmission. | | High Isolation Voltage | Ranges from 3,750 V rms up to 5,300 V rms , providing robust galvanic isolation. | Protects low-voltage control circuitry from high-voltage hazards and transients. | | TTL Compatibility | Logic output is fully compatible with Transistor-Transistor Logic (TTL) levels. | Allows for direct interfacing with standard digital logic families without extra level-shifting components. | | High Current Transfer Ratio (CTR) | For the HCPL-1458-500E , the CTR is > 500% at an input current (I F ) of 5 mA. | A high CTR means the output can be driven strongly with a very small input current, improving efficiency. | | High Common-Mode Transient Immunity (CMTI) | Minimum of 15 kV/µs for basic models; advanced models achieve up to 75 kV/µs . | Provides excellent immunity to electrical noise, ensuring stable performance in harsh industrial environments. | | Wide Operating Temperature | Typically from -40°C to +100°C , with some variants extending to -55°C to +100°C. | Guarantees reliable operation in demanding applications ranging from automotive to industrial. | | Dual-Channel Option | Some variants, like the HCNW1458, integrate two independent optocoupler channels in a single package. | Saves valuable board space and reduces component count for more compact designs. |
: Due to its hermetically sealed package, it is often selected for environments where moisture or contaminants would degrade standard plastic packages. Distinguishing the 1458 Family
According to the , the component boasts several standout characteristics: 1458 optocoupler datasheet
The Current Transfer Ratio is the most critical metric when designing with the 1458 optocoupler. It is defined as the ratio of the output collector current ( ICcap I sub cap C ) to the input forward current ( IFcap I sub cap F ), expressed as a percentage:
Providing isolated feedback in switching power supplies.
, allowing flexibility for both legacy 5V systems and modern 3.3V logic. Low Input Drive: Designed with a "Low cap I sub cap F According to the , the device boasts several
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is a high-performance, high-speed optocoupler designed to provide reliable electrical isolation for high-frequency signal transmission. It is frequently used in industrial and power electronics to protect sensitive low-voltage components, like microcontrollers, from high-voltage spikes and noise. Key Technical Specifications
Typically ranges from 20% to 300% depending on the specific binning suffix (e.g., -1, -2, -3). Measured at Collector-Emitter Saturation Voltage ( | | High Current Transfer Ratio (CTR) |
Enhances efficiency by reducing power losses at the output driver stage during low-logic states. Pinout Configuration and Packaging
To use the HCPL-1458 as a basic logic isolator, you will generally: