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.

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 – 3750 V rms for 1 Minute

CSA approved

• MIL-PRF-38534 hermetic 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