Avago Technologies HCPL-2503
The HCPL-2503 optocoupler is specified for use in LSTTLto-LSTTL and TTL-to-LSTTL logic interfaces. The CTR of the HCPL-2503 is 15% minimum at IF = 8 mA. The HCPL-2503 contains a light emitting diode and an integrated photon detector with a 3000 Vdc withstand test between input and output.DESCRIPTION
A nominal 8 mA sink current through the input LED will provide enough output current for proper operation of 1 LSTTL gate under worst-case conditions when used in the recommended circuits. Separate connection for the photodiode bias and output transistor collector reduce the base-collector capacitance, giving improved speed compared with conventional phototransistor couplers. Schematic ICC 8 VCC 2 ANODE + VF CATHODE 3 IF SHIELD IB 7* VB IO 6 VO 5 GNDFEATURES
● Data rates to 250 kb/s NRZ● LSTTL compatible
● High common mode transient immunity: > 1000 V/µs
● 3750 Vdc withstand test voltage
● Open collector output
● Guaranteed performance from temperature: 0°C to 70°C
● Safety approval - UL Recognized - 3750Vrms for 1min (5000Vrms for 1 min Option 020 devices) per UL1577. - IEC/EN/DIN EN 60747-5-2 Approved - VIORM = 630 Vpeak for option 060
APPLICATIONS
● High speed logic ground isolation – LSTTL-to-LSTTL and TTL-to-LSTTL● High voltage isolation
● Analog signal ground isolation - A 0.1uF bypass capacitor must be connected between 5 and 8.