HCPL-181-00DE Series

series introduction

# HCPL - 181 - 00DE Product Series Introduction

## 1. Overview
The HCPL - 181 - 00DE is a remarkable product series that belongs to the optocoupler category. Optocouplers, also known as optoisolators, are essential components in modern electronic circuits. They provide electrical isolation between two circuits while allowing the transfer of signals. The HCPL - 181 - 00DE series is designed to offer high - performance, reliable, and efficient signal isolation solutions for a wide range of applications.

## 2. Key Features

### 2.1 Electrical Isolation
One of the primary features of the HCPL - 181 - 00DE series is its excellent electrical isolation capability. It can effectively isolate the input and output circuits, preventing electrical interference, voltage spikes, and ground loops from affecting the overall system performance. This isolation is crucial in applications where different voltage levels or noisy environments are present, such as industrial control systems, power supplies, and automotive electronics.

### 2.2 High - Speed Signal Transfer
The series is capable of high - speed signal transfer. It can handle fast - changing digital signals with minimal propagation delay. This makes it suitable for applications that require real - time data transmission, such as communication interfaces, high - speed data acquisition systems, and digital signal processing circuits.

### 2.3 Low Power Consumption
In today's energy - conscious world, low power consumption is a highly desirable feature. The HCPL - 181 - 00DE series is designed to operate with low power requirements, which helps in reducing the overall power consumption of the system. This is beneficial for battery - powered devices and applications where energy efficiency is a priority.

### 2.4 Wide Operating Temperature Range
The product series can operate over a wide temperature range. This allows it to be used in various environmental conditions, from extreme cold to high - temperature industrial settings. The wide operating temperature range ensures the reliability and stability of the optocoupler in different applications, including automotive under - hood electronics and outdoor industrial equipment.

### 2.5 High Common - Mode Rejection Ratio (CMRR)
The HCPL - 181 - 00DE series has a high common - mode rejection ratio. This means it can effectively reject common - mode noise, which is often present in electrical systems. By rejecting common - mode noise, the optocoupler can ensure the integrity of the transmitted signal, resulting in more accurate and reliable data transfer.

## 3. Technical Specifications

### 3.1 Input Characteristics
- **Forward Current (IF)**: The typical forward current required to drive the input LED is in a specific range, which is carefully designed to ensure proper operation of the optocoupler. This current value is optimized to balance between signal strength and power consumption.
- **Forward Voltage (VF)**: The forward voltage across the input LED is within a defined range. This parameter is important for power supply design and ensuring that the input circuit can provide the necessary voltage to drive the LED.

### 3.2 Output Characteristics
- **Collector - Emitter Voltage (VCE)**: The maximum collector - emitter voltage that the output transistor can withstand is specified. This parameter determines the voltage range in which the output circuit can operate safely.
- **Collector Current (IC)**: The maximum collector current that the output transistor can handle is defined. It is an important parameter for determining the load - driving capability of the optocoupler.

### 3.3 Isolation Characteristics
- **Isolation Voltage (Viso)**: The HCPL - 181 - 00DE series has a specified isolation voltage, which represents the maximum voltage that can be applied between the input

Images for reference

HCPL-181-00CE

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Datasheets

Partlist

HCPL-181-00DE