AEIC-2631-S16

AEIC-2631-S16 Quad Differential Line Driver* Data Sheet Description Features These line drivers are similar to the popular 26LS31 device, but without the enable function. They provide the additional supply voltage range necessary for use in many industrial control applications. AEIC-2631-S16 not only supports RS-422A, but use of supplies up to 30 V. Output voltage swings up to VCC -2 V are typical. The outputs are protected against shorts to ground by a two-fold scheme of current limiting and thermal shutdown.  Supply Voltage Range 4.75 V to 30 V Thermal shutdown is accomplished by monitoring junction temperature and comparing this to a band gap reference on chip. Input hysteresis of about 0.5 V provides good noise margin, even in noisy industrial control environments. Input to output propagation delays of less than 200 ns are typical for rising and falling edges of the input waveform, measured to the zero crossing of the differential outputs. This part is available in 16L SOIC (Pb-free) package. Applications  Encoders  Industrial controls  Operation to 800 KHz  CMOS and TTL Compatible Inputs  Support RS422A  High Impedance Buffered Inputs with hysteresis  Outputs short circuit protected  70 mA peak SINK current  Outputs Protected by Thermal Shut-Down Pin Assignment AIN 1 16 VCC A+ 2 15 DIN A- 3 14 D+ NC 4 13 D- B- 5 12 NC B+ 6 11 C- BIN 7 10 C+ GND 8 9 CIN * Pin compatible with 26LS31 in applications which do not require an enable function. Table 1. Absolute Maximum Ratings Parameters Symbol Min. Max. Units Operating Temperature Range TA -55 125 °C Supply Voltage Range VCCD 4.75 30 V Ref. Table 2. Electrical Characteristics Unless otherwise specified, typical values given at Vcc = 2 V, TA = 25° C and EN- < 0.8 V Parameters Symbol Min. Typ. Max. Units Test Conditions Overtemp Operate Point (junction) TJOP - 155 - °C Note 1 Overtemp Release Point (junction) TJRP - 105 - °C Note 1 mA VCC = 5 V (ICC1) ICC1 7.0 11.0 17.0 ICC2 9.0 13.0 20.0 Input Positive-Going Threshold V T+ 1.1 1.5 1.9 V Input Negative-Going Threshold V T- 0.7 1.0 1.4 V Low Level Input Current IIL -4.0 -0.13 - A VIN = 0 V, VCC = 30 V High Level Input Current IIH - 0 4.0 A VIN = 30 V, VCC = 30 V Low Level Output1 VOL1 - 375 500 mV IOL = 20 mA, VCC = 5 V Low Level Output2 VOL2 - 375 500 mV IOL = 20 mA, VCC = 30 V High Level Output1 VOH1 2.5 2.8 - V IOH = -20 mA, VCC = 5 V High Level Output2 VOH2 27.8 28.0 - V IOH = -20 mA, VCC = 30 V Supply Current VCC = 30 V (ICC2) Notes : 1. This is not a test parameter, but for information only. 2. It may be necessary to clamp the outputs with Schottky diodes when driving extremely long cables with high capacitance between outputs. These diodes should have a forward voltage of less than 0.4 V, and be connected with cathode to the output and anode to ground. Table 3. AC Switching Characteristics Values given at VCC = 24 V, TA = 25° C, CL = 100 pF on all outputs. Parameters Symbol Min. Typ. Max. Units Test Conditions Propagation delay, rising input 50% point to zero crossing of differential outputs TPLH - 150 285 ns See above. Propagation delay, falling input 50% point to zero crossing of differential outputs TPHL - 170 310 ns See above. Output Rise Time TR - 95 310 ns See above. Output Fall Time TF - 40 165 ns See above. 2 Package Drawings (Dimensions in Inches) D CL X CL E PIN NO. 1 ID MARK 0.010 2 e DETAIL “A” B ±0.004 0.015 X 45° A A1 16 SOIC Symbol Min Max A 0.054 0.068 A1 0.004 0.0098 B 0.014 0.019 D 0.386 0.393 E 0.150 0.157 H 0.229 0.244 e 0.0075 0.0098 L 0.016 0.034 X θ1 θ2 H Notes: 1. Lead coplanarity should be o to 0.004" max. 2. Package surface finishing: VD1 24~27 (Dual). Package surface finishing: VD1 13~15 (16L Soic(NB) Matrix). 3. All dimension excluding mold flashes. 4. The lead width, B to be determined at 0.0075" from the lead tip. 0.020 REF 0° 8° 7° BSC For product information and a complete list of distributors, please go to our web site: DETAIL “A” C 1 0.050 BSC C L GAUGE PLANE SEATING PLANE www.avagotech.com Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies in the United States and other countries. Data subject to change. Copyright © 2005-2011 Avago Technologies. All rights reserved. AV02-3023EN - September 7, 2011