3-Channel 75Ω Line Driver

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Article description

Product description

The iC-WE is a high-speed monolithic line driver circuit for three independent channels with built-in
characteristic impedance adaption for 75 Ω lines. The push-pull outputs are designed for a high driver power of typ. 300 mA at 24 V. They are current-limited and short-circuit protected by thermal shut-down at overtemperature.
All inputs are Schmitt triggers and contain current sources from the 5 V supply VCC which select a defined
High Level without external wiring.


  • 3 current-limited and short-circuit-proof push-pull drivers
  • Built-in adaption to 75 Ω characteristic impedance
  • High driver current of 300 mA at 24 V typ.
  • Low saturation voltage up to 30 mA load current
  • Short switching times and high slew rates by npn circuitry
  • Wide driver supply range VB = 4.5 V to 30 V
  • Internal free-wheeling diodes to VB and GND
  • Schmitt trigger inputs with integrated pull-up current sources
  • Inputs compatible to TTL and CMOS
  • Inverting and non-inverting driver mode
  • Bus capability due to Tri-State switching
  • Compatible to EIA standard RS-422
  • Thermal shutdown with hysteresis
  • Short-circuit-proof OC error output reports thermal shutdown or undervoltage at VCC or VB
  • Driver disabled in case of fault
  • Extended temperature range of up to 130 °C in TSSOP20 4.4 mm package


  • 24 V signal transfer
  • Line driver in PLC environment
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