SN75179BD

1. Description

SN75179BD is a differential driver and receiver pair designed for balanced transmission line applications And comply with TIA/EIA-422-B, TIA/EIA-485-A and ITU recommendation V.11. It aims to improve Full-duplex data communication performance on long buses.

SN75179BD driver output can simultaneously limit the positive and negative currents. High receiver function Input impedance, input hysteresis to improve noise immunity, and input sensitivity is ±200 mV in the entire working range The common mode input voltage range is –7 V to 12V. The driver provides thermal shutdown function to protect Line fault condition. Thermal shutdown is designed to occur at a junction temperature of approximately 150°C. SN75179BD is designed to drive a current load of up to 60 mA. The operating temperature range of SN75179BD is 0°C to 70°C

2. Features

    1. Meet or exceed TIA/EIA-422-B, TIA/EIA-485-A and ITU Recommendation V.11

    2. Bus voltage range. . . –7 V to 12 V

    3. Positive and negative current limit

    4. Drive output capability. . . Max. 60 mA

    5. Driver thermal shutdown protection

    6. Receiver input impedance. . . Minimum 12kΩ

    7. Receiver input sensitivity...±200 mV

    8. Receiver input hysteresis. . . Typical value 50 mV

    9. Use 5V single power supply

  10. Low power requirements

3. PARAMETER MEASUREMENT INFORMATION

4. Driver VDD and VOC