描述 Description

The HCPL-2602/12 are optically coupled line receivers that combine a GaAsP light emitting diode, an input current regulator and an integrated high gain photo detector. The input regulator serves as a line termination for line receiver applications. It clamps the line voltage and regulates the LED current so line reflections do not interfere with circuit performance.

特性 Features

? 1000 V/μs Minimum Common Mode Rejection (CMR) at VCM = 50 V for HCPL-2602 and 3.5 kV/μs Minimum CMR at VCM = 300 V for HCPL-2612

? Line Termination Included – No Extra Circuitry Required

? Accepts a Broad Range of Drive Conditions

? LED Protection Minimizes LED Efficiency Degradation

? High Speed: 10 MBd (Limited by Transmission Line in Many Applications)

? Guaranteed AC and DC Performance over Temperature: 0°C to 70°C

? External Base Lead Allows “LED Peaking” and LED Current Adjustment

? Safety Approval

UL Recognized – 2500 V rms for 1 Minute CSA Approved

? MIL-STD-1772 Version Available (HCPL-1930/1)

Applications

? Isolated Line Receiver

? Computer-Peripheral Interface

? Microprocessor System Interface

? Digital Isolation for A/D, D/A Conversion

? Current Sensing

? Instrument Input/Output Isolation

? Ground Loop Elimination

? Pulse Transformer Replacement

? Power Transistor Isolation in Motor Drives