Avago Technologies HCPL-0452
The HCPL-4502/4503 and HCNW4502/4503 are designed for high speed TTL/TTL applications.DESCRIPTION
These diode-transistor optoc ouplers 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. A standard 16 mA TTL sink current through the input LED will provide enough output current for 1 TTL load and a 5.6 kΩ pull-up resistor. CTR for these devices is 19% minimum at IF = 16 mA. Functional Diagram NC 1 ANODE 2 CATHODE 3 NC 4 8 VCC 7 NC 6 Vo 5 GND TRUTH TABLE (POSITIVE LOGIC) LED Vo ON LOW OFF HIGH A 0.1 µF bypass capacitor must be connected between pins 5 and 8.FEATURES
● 15 kV/µs minimum common mode transient immunity at VCM = 1500 V● High speed: 1 Mb/s
● TTL compatible
● Availabl...