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IC-HD2 Datasheet(PDF) 2 Page - IC-Haus GmbH |
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IC-HD2 Datasheet(HTML) 2 Page - IC-Haus GmbH |
2 / 8 page iC-HD2 QUAD DIFFERENTIAL LINE DRIVER Rev A6, Page 2/8 DESCRIPTION iC-HD is a robust line driver for industrial 5 V and 24 V applications with four complementary output chan- nels. For signal lines with a characteristic impedance of 30 to 140 Ω the integrated line adapter, optimized to 75 Ω, minimizes ringing effects which arise when there is no line termination. At a supply of 24 V the push-pull driver stages typi- cally 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 ex- cessive 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 char- acteristic and are compatible with CMOS and TTL levels. The device recognizes undervoltage at voltage regu- lator 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 sig- naled as an error by a low signal at the short-circuit- proof NERR output. For test purposes the tempera- ture monitor can be deactivated by applying a voltage of greater than 12 V to input NEN. The iC-HD contains internal ESD protection circuitry. PACKAGING INFORMATION TSSOP20 PIN CONFIGURATION TSSOP20 1 I1 2 GND1 3 4 NO1 5 6 NO2 7 8 O2 9 10 I2 20 I4 19 18 O4 17 16 NEN 15 14 NO3 13 12 GND2 11 O1 NERR nc VREF I3 O3 NO4 nc VB PIN FUNCTIONS No. Name Function 1 I1 Input 1 2 GND1 Ground 3 O1 Driver Output 1 4 NO1 Inverted Driver Output 1 5 VREF Voltage Regulator Output +5 V (5 mA) 6 NO2 Inverted Driver Output 2 7 O2 Driver Output 2 8 nc 9 I2 Input 2 10 NERR Error Message Output (low active) 11 I3 Input 3 12 GND2 Ground 13 O3 Driver Output 3 14 NO3 Inverted Driver Output 3 15 NEN Function Input (low signal enables driver outputs) 16 NO4 Inverted Driver Output 4 17 O4 Driver Output 4 18 nc 19 I4 Input 4 20 VB +4.5 to +35 V Supply Voltage The pins GND1, GND2 must be connected to ground. |
Similar Part No. - IC-HD2_14 |
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Similar Description - IC-HD2_14 |
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