HCNW139-300E

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1. Description

These high gain series couplers use a Light Emitting Diode and an integrated high gain photodetector to provide extremely high current transfer ratio between input and output. Separate pins for the photodiode and output stage result in TTL compatible saturation voltages and high speed operation. Where desired the VCC and VO terminals may be tied together to achieve conventional photodarlington operation. A base access terminal allows a gain bandwidth adjustment to be made. The 6N139, HCPL-0701, and HCNW139-300E are for use in CMOS, LSTTL or other low power applications. A 400% minimum current transfer ratio is guaranteed over 0to 70°C operating range for only 0.5 mA of LED current. The 6N138, HCPL-0700, and HCNW138 are designed for use mainly in TTL applications. Current Transfer Ratio (CTR) is 300% minimum over 0 to 70°C for an LED current of 1.6 mA (1TTL Unit load ). A 300% minimum CTR enables operation with 1 TTL Load using a 2.2 kΩ pull-up resistor.

2. Features

    1. High current transfer ratio – 2000% typical (4500 % typical for HCNW139/138)

    2. Low input current requirements – 0.5 mA

    3. TTL compatible output – 0.1V VOL typical

    4. Performance guaranteed over temperature 0°C to70°C

    5. Base access allows gain bandwidth adjustment

    6. High output current – 60mA

    7. Safetyapproval

        - UL recognized – 3750 V rms for 1minute and 5000 V rms* for 1minute per UL 1577

        - CSA approved

        - IEC/EN/DIN EN 60747-5-5 approved with VIORM = 1414 Vpeak for HCNW139 and HCNW138

    8. Available in 8-Pin DIP or SOIC-8 footprint or widebody package

    9. MIL-PRF-38534 hermetic version available (HCPL-5700/1)

3. Applications

    1. Ground isolate most logic families – TTL/TTL, CMOS/ TTL, CMOS/CMOS, LSTTL/TTL, CMOS/LSTTL

    2. Low input current line receiver

    3. High voltage insulation (HCNW139/138)

    4. EIA RS-232C line receiver

    5. Telephone ring detector

    6. 117 V ac line voltage status indicator – low input power dissipation

    7. Low power systems – ground isolation