iC-HD2 QUAD DIFFERENTIAL LINE DRIVER
●DESCRIPTION
■iC-HD is a robust line driver for industrial 5 V and 24 V applications with four complementary output channels.
■For signal lines with a characteristic impedance of 30 to 140Ωthe integrated line adapter,optimized to 75Ω,minimizes ringing effects which arise when there is no line termination.
■At a supply of 24 V the push-pull driver stages typically provide 200 mA to discharge the line and also have a low saturation voltage(of typically 200 mV with a 40 mA low-side load).The outputs are current limited and short-circuit-proof,shutting down with excessive temperature.
■For bus applications the driver stages can be switched to high impedance by a high at input NEN.
■The driver stage inputs have a Schmitt trigger characteristic and are compatible with CMOS and TTL levels.
■The device recognizes undervoltage at voltage regulator output VREF and thus indirectly also at supply voltage VB.VREF acts as a 5 V voltage supply for external loads of up to 5 mA.
■Excessive temperature and undervoltage are signaled as an error by a low signal at the short-circuit-proof NERR output.For test purposes the temperature monitor can be deactivated by applying a voltage of greater than 12 V to input NEN.
■The iC-HD contains internal ESD protection circuitry.
●FEATURES
■Complementary short-circuit-proof push-pull driver stages for RS422 and 24 V applications up to 2 MHz
■Pin-compatible to xx2068
■Integrated line adaptation for high signal quality at 24 V
■Moderate slew rate reduces EMI
■High driving capability of typically 200 mA at 24 V
■Output saturation of just 0.3 V at 40 mAdc
■Tristate function with excessive temperature
■Error messaging with excessive temperature and undervoltage
■TTL-/CMOS-compatible Schmitt trigger inputs,voltage-proof to 40 V
■Tristate function for bus applications
■Integrated 5 V voltage regulator for 5mA
■4.5 to 35 V single supply operation with low static power dissipation
■Operating temperature from -25 to 125℃ (-40℃ is optional)
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[ 24 V control engineering ][ encoders ][ Sensor systems ] |
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Datasheet |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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2017/11/18 |
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Rev A6 |
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422 KB |
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