Broadcom HCPL-4503

These diode-transistor optocouplers use an insulating layer between a LED and an integrated photodetector to provide electrical insulation between input and output. Separate connections for the photodiode bias and output-transistor collector increase the speed up to a hundred times that of a conventional phototransistor coupler by reducing the base-collector capacitance. These single channel optocouplers are available in 8-Pin DIP, SO-8 and Widebody package configurations. The HCPL-4502/4503 and HCNW4502/4503 are designed for high speed TTL/TTL applications. A standard 16 mA TTL sink current through the input LED will provide enough output current for 1 TTL load and a 5.6kΩ pull-up resistor. CTR for these devices is 19% minimum at lF = 16mA

• 15kV / μs minimum common mode transient immunity at VCM = 1500V
• High speed: 1 Mb/s
• TTL compatible
• Available in 8-Pin DIP, SO-8, widebody packages
• Open collector output
• Guaranteed performance from temperature: 0°C to 70°C
• Safety approval
  • UL Recognized - 3750Vrms for 1 minute (5000Vrms for 1 minute for HCNW and Option 020 devices) per UL1577
  • CSA Approved
  • IEC/EN/DIN EN 60747-5-5 Approved
    • VIORM = 630V peak for HCPL-4503#060
    • VIORM = 1414V peak for HCNW devices
• Dual channel version available (4534/0534)
• MIL-PRF-38534 hermetic version available (55XX/65XX/4N55)

• High voltage insulation
• Video signal isolation
• Power transistor isolation in motor drives
• Line receivers
• Feedback element in switched mode power supplies
• High speed logic ground isolation - TTL/TTL, TTL/CMOS, TTL/LSTTL
• Replaces pulse transformers
• Replaces slow phototransistor isolators
• Analog signal ground isolation