iC-DL 3-CHANNEL DIFFERENTIAL LINE DRIVER Rev B1, Page 1/9 FEATURES © 6 current-limited and short-circuit-proof push-pull drivers © Differential 3-channel operation selectable © Integrated impedance adaption for 30 to 140 lines © Wide power supply range from 4 to 40 V © 200mA output current (at VB = 24 V) © Low output saturation voltage (< 0.4 V at 30 mA) © Compatible with TIA/EIA standard RS-422 © Tristate switching of outputs enables use in buses © Short switching times and high slew rates © Low static power dissipation © Schmitt trigger inputs with pull-down resistors, TTL and CMOS compatible; voltage-proof up to 40 V © Thermal shutdown with hysteresis © Error message trigger input TNER © Open-drain error output NER, active low with excessive chip temperature and undervoltage at VCC or VB © Option: Extended temperature range from -40 to 125 °C APPLICATIONS © Line drivers for 24 V control engineering © Linear scales and encoders © MR sensor systems PACKAGES QFN28 5 x 5 mm² BLOCK DIAGRAM VCC NER VB1 VB2 VB3 A1 vert. 8V/div. hor. 2ìs/div A2 A3 A4 A5 A6 GND1 0 0 DIFF E6 E5 E4 E3 E2 E1 ENA TNER GND2 GND3 GND4 ERROR DETECTION MODE UNDERVOLTAGE & OVERTEMPERATURE 1 1 0 1 iC-DL LINE 100 m PLC & 1 Copyright © 2009 iC-Haus http://www.ichaus.com

iC-DL 3-CHANNEL DIFFERENTIAL LINE DRIVER Rev B1, Page 2/9 DESCRIPTION iC-DL is a fast line driver with six independent channels and integrated impedance adaptation for 30 to 140 lines. Channels are paired for differential 3-channel operation by a high signal at the DIFF input, providing differential output signals for the three inputs E1, E3 and E5. All inputs are compatible with CMOS and TTL levels. The push-pull output stages have a driver power of typically 200mA from 24 V and are short-circuitproof and current-limited, shutting down with excessive temperature. For bus applications the output...

iC-DL 3-CHANNEL DIFFERENTIAL LINE DRIVER Rev B1, Page 3/9 ABSOLUTE MAXIMUM RATINGS Beyond these values damage may occur; device operation is not guaranteed. Absolute Maximum Ratings are no Operating Conditions. Integrated circuits with system interfaces, e.g. via cable accessible pins (I/O pins, line drivers) are per principle endangered by injected interferences, which may compromise the function or durability. The robustness of the devices has to be verified by the user during system development with regards to applying standards and ensured where necessary by additional protective circuitry....

iC-DL 3-CHANNEL DIFFERENTIAL LINE DRIVER Rev B1, Page 4/9 ELECTRICAL CHARACTERISTICS Operating Conditions: VB1...3 = 4.5...32V, VCC = 4...5.5 V, Tj = -40...140 °C, unless otherwise noted input level lo = 0...0.45 V, hi = 2.4 V...VCC, timing diagram see fig. 1 Item Symbol Parameter Conditions Unit No. Min. Typ. Max. General (x=1..6) 001 VBx Supply Voltage Range (Driver) 4 32 V 002 I(VBx) Supply Current in VB1...3 Ax = lo 1.5 mA 003 I(VBx) Supply Current in VB1...3 Ax = hi 3 mA 004 I(VBx) Supply Current in VB1, Outputs A1...2 Tri-State ENA = lo, V(A1...2) = -0.3...(VB + 0.3 V) 1.2 mA 005 I(VBx)...

iC-DL 3-CHANNEL DIFFERENTIAL LINE DRIVER Rev B1, Page 5/9 ELECTRICAL CHARACTERISTICS Operating Conditions: VB1...3 = 4.5...32V, VCC = 4...5.5 V, Tj = -40...140 °C, unless otherwise noted input level lo = 0...0.45 V, hi = 2.4 V...VCC, timing diagram see fig. 1 Item Symbol Parameter Conditions Unit No. Min. Typ. Max. 703 VBhys Hysteresis VBhys = VBon - VBoff 150 250 mV Supply Voltage Difference Control VB1...3 801 V(VBx) Threshold Condition for Supply Voltage Difference between VB1, VB2 and VB3 V(VBx) = MAX (|VB1 - VB2| , |VB2 - VB3| , |VB1 - VB3| ) NER ) low 0.75 1.85 V Supply Voltage Control...

iC-DL 3-CHANNEL DIFFERENTIAL LINE DRIVER Rev B1, Page 6/9 DESCRIPTION Line drivers for control engineering couple TTL- or CMOS-compatible digital signals with 24 V systems via cables. The maximum permissible signal frequency is dependent on the capacitive load of the outputs (cable length) or, more specifically, the power dissipation in iC-DL resulting from this. To avoid possible short circuiting the drivers are current-limited and shutdown with excessive temperature. When the output is open the maximum output voltage corresponds to supply voltage VB (with the exception of any saturation voltages)....

iC-DL 3-CHANNEL DIFFERENTIAL LINE DRIVER Rev B1, Page 7/9 PRINTED CIRCUIT BOARD LAYOUT The thermal pad at the bottom of the package improves thermal dissipation. The board layout has to be designed so that an appropriate number of copper vias below the thermal pad area form a good conductive path to the reverse of the board where a blank copper surface of sufficient size (approx. 2 cm²) carries off heat. The thermal pad is to be soldered to the board and must be connected to GND. To smooth the local IC supply VCC and VBx, blocking capacitors must be connected directly to these pins and to GND....

iC-DL 3-CHANNEL DIFFERENTIAL LINE DRIVER Rev B1, Page 8/9 Figure 6: Evaluation board (component side) iC-Haus expressly reserves the right to change its products and/or specifications. An Infoletter gives details as to any amendments and additions made to the relevant current specifications on our internet website www.ichaus.de/infoletter; this letter is generated automatically and shall be sent to registered users by email. Copying – even as an excerpt – is only permitted with iC-Haus approval in writing and precise reference to source. iC-Haus does not warrant the accuracy, completeness or...

iC-DL 3-CHANNEL DIFFERENTIAL LINE DRIVER Rev B1, Page 9/9 ORDERING INFORMATION Type Package Order Designation iC-DL QFN28 5 x 5 mm² iC-DL QFN28 iC-DL Evaluation Board iC-DL EVAL DL2D For technical support, information about prices and terms of delivery please contact: iC-Haus GmbH Tel.: +49 (61 35) 92 92-0 Am Kuemmerling 18 Fax: +49 (61 35) 92 92-192 D-55294 Bodenheim Web: http://www.ichaus.com GERMANY E-Mail: [email protected] Appointed local distributors: http://www.ichaus.com/sales_partners