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1 2 3 4 5 6 7 8 v s gnd 11 12 13 14 15 16 17 18 udn2981a dwg. no. a-10, 243 recommended for high-side switching applications that benefit from separate logic and load grounds, these devices encompass load supply voltages to 50 v and output currents to -500 ma. these 8-channel source drivers are useful for interfacing between low-level logic and high-current loads. typical loads include relays, solenoids, lamps, stepper and/or servo motors, print hammers, and leds. all devices may be used with 5 v logic systems ? ttl, schottky ttl, dtl, and 5 v cmos. the udn2981a, udn2982a, and a2982slw are electrically interchangeable, will withstand a maximum output off voltage of 50 v, and operate to a minimum of 5 v. all devices in this series integrate input current limiting resistors and output transient suppression diodes, and are activated by an active high input. the suffix ?a? (all devices) indicates an 18-lead plastic dual in-line package with copper lead frame for optimum power dissipation. under normal operating conditions, these devices will sustain 120 ma continuously for each of the eight outputs at an ambient temperature of +50c and a supply of 15 v. the suffix ?lw? (udn2982lw only) indicates an 18-lead surface- mountable wide-body soic package; the a2982slw is provided in a 20-lead wide-body soic package with improved thermal characteristics. the udn2982a, udn2982lw, and a2982slw drivers are also available for operation over an extended temperature range to -40c. to order, change the prefix ?udn? to ?udq? or the suffix ?slw? to ?elw?. these packages are available in pb (lead) free variants (suffix ?-t?), with 100% matte-tin leadframe plating. features ttl, dtl, pmos, or cmos compatible inputs 500 ma output source current capability transient-protected outputs output breakdown voltage to 50 v dip or soic packaging 8-channel source drivers always order by complete part number, e.g., udn2981a-t . note that all devices are not available in all package styles. absolute maximum ratings at 25c free-air temperature output voltage range, v ce . . . . . . 5 v to 50 v input voltage, v in udn2981a . . . . . . . . . . . . . . . . . . . . . . . . 15 v udn2982a, udn2982lw, and, a2982slw . . . . . . . . . . . . . . . . . . . . . . . 20 v output current, i out . . . . . . . . . . . . . . -500 ma package power dissipation, p d . . . . . . . . . . . . . . . . . . . . . . . see graph operating temperature range, t a . . . . . . . . . . . . . . . . . . . . -20c to +85c storage temperature range, t s . . . . . . . . . . . . . . . . . . . -55c to +150c data sheet 29310k 2981 and 2982 note that the udn2980a series (dual in-line package) and udn2980lw series (small-outline ic package) are electrically identical and share a common terminal number assignment.
2981 and 2982 8-channel source drivers 115 northeast cutoff, box 15036 worcester, massachusetts 01615-0036 (508) 853-5000 2 1 pb-based variants are being phased out of the product line. some variants cited in this footnote are in production but have bee n determined to be last time buy or not for new design. this classification indicates that sale of this device is currently restricted to existing customer applications. the variants should not be purchased for new design applications because obsolescence in the near future is probable. samples are no longer available. for last time buy: status change: october 31, 2006. deadline for receipt of last time buy orders: april 27, 2007. these variants include: a2982elw, a2982elwtr, a2982slw, a2982slwtr, udn2981a, and ud n2982a. for not for new design: status change: may 1, 2006. these variants include: udn2982lw and udn2982lwtr. selection guide part number pb-free 1 package packing ambient temperature (c) a2982elw-t yes 20-pin soicw 37 per tube ?40 to 85 a2982elwtr-t yes 20-pin soicw 1000 per reel ?40 to 85 a2982slw-t yes 20-pin soicw 37 per tube ?20 to 85 a2982slwtr-t yes 20-pin soicw 1000 per reel ?20 to 85 udn2981a-t yes 18-pin dip 21 per tube ?20 to 85 udn2982a-t yes 18-pin dip 21 per tube ?20 to 85 UDN2982LW-T yes 18-pin soicw 41 per tube ?20 to 85 udn2982lwtr-t yes 18-pin soicw 1000 per reel ?20 to 85 udq2982lw-t yes 18-pin soicw 41 per tube ?40 to 85 udq2982lwtr-t yes 18-pin soicw 1000 per reel ?40 to 85 1.5
29 8 1 an d 2 9 8 2 8 - cha nn e l sou rce d r i ver s 1 1 5 n o r t h e a s t c u t o f f , b o x 1 5 0 3 6 w o r c e s t e r , m a s s a c h u s e t t s 0 1 6 1 5 - 0 0 3 6 ( 5 0 8 ) 8 5 3 - 5 0 0 0 2 a2982slw 5 0 7 5 1 0 0 1 2 5 1 5 0 2 . 5 0 . 5 0 a l l o w a b l e p a c k a g e p o w e r d i s s i p a t i o n i n w a t t s a m b i e n t t e m p e r a t u r e i n c 2 . 0 1 . 5 1 . 0 2 5 d w g . g p - 0 2 2 - 4 a 1 8 - l e a d s o i c , r j a = 9 4 c / w 2 0 - l e a d s o i c , r j a = 9 0 c / w 1 8 - p i n d i p , r j a = 6 5 c / w one of eight drivers o u t p u t 7 . 2 k 3 k 2 0 k v 5 1 . 5 k i n p u t g r o u n d 9 d w g . n o . a - 1 0 , 2 4 2usa 1 3 1 4 1 5 1 6 1 7 1 9 1 2 1 8 2 0 1 1 n o c o n n e c t i o n 1 2 3 8 9 4 5 6 7 1 0 n o c o n n e c t i o n n c n c d w g . p p - 0 6 4 - 2 g r o u n d + v s
2 9 8 1 an d 29 8 2 8-channe l source driver s www . allegromicro . co m 3 s t i m i l t s e t e l b a c i l p p a characteristi c symbo l device s test condition s fig . min . typ . max . unit s o u t pu t leakage curren t i ce x al l v i n = 0 . 4 v* , v s = 50 v , t a = +7 0 c 1 ? ? 20 0 a o u t pu t sus t ainin g v ce(sus ) al l i o u t v ? ? 5 3 ? a m 5 4 - = v ol t ag e colle ct o r-em i tt e r v ce(sat ) al l v i n = 2 . 4 v , i o u t = - 100 m a 2 ? 1 . 6 1 . 8 v v e g a t l o v n o i t a r u t a s i n = 2 . 4 v , i o u t = - 225 m a 2 ? 1 . 7 1 . 9 v v i n = 2 . 4 v , i o u t = - 350 m a 2 ? 1 . 8 2 . 0 v i npu t cu rr en t i in(on ) udn2981 a v i n 0 0 2 0 4 1 ? 3 v 4 . 2 = a v i n 0 5 4 0 1 3 ? 3 v 5 8 . 3 = a 2982 ? v i n 0 0 2 0 4 1 ? 3 v 4 . 2 = a v i n a m 3 9 . 1 5 2 . 1 ? 3 v 2 1 = o u t pu t sour c e curren t l ou t udn2981 a v i n = 2 . 4 v , v c e = 2.0 v 2 -35 0 ? ? m a ( o u t pu t s o pen ) 2982 ? v i n = 2 . 4 v , v c e = 2.0 v 2 -35 0 ? ? m a supply curren t i s al l v i n = 2 . 4 v* , v s = 50 v 4 ? ? 1 0 m a lea k age curren t clamp diod e i r al l v r = 50 v , v i n = 0 . 4 v * 5 ? ? 5 0 a clamp diod e v f al l i f v 0 . 2 5 . 1 ? 6 a m 0 5 3 = t u r n -o n dela y t o n al l 0. 5 e i n t o 0 . 5 e o u t , r l = 1 0 0 ? , ? ? 0 . 3 2 . 0 s v s = 35 v t urn- off dela y t of f al l 0.5 e i n t o 0 . 5 e o u t , r l = 1 0 0 ? , ? ? 2 . 0 1 0 s v s = 35 v , see no t e electrical characteristics at t a = +25 c (unless otherwise specified). n ot es : t urn-o ff dela y i s in f luen c ed by load c ondi t ions . sys t ems appli c a t ions well below t he s peci f ied ou t pu t loading may requi r e t iming con s idera t ions f or some designs , i . e ., mul t iplexed display s or when used in combina t ion wi t h sink drivers in a t o t e m pole con f igura t ion . nega t ive curren t i s de f ined a s c oming ou t o f (sourcing) t he speci f ied device t erminal . * a ll inpu t s simul t aneou s l y . all unused inputs must be connected to ground. pulldown resistors ( 10 k?) are recommended for inputs that are allowed to float while power is being applied to v s . ? comple t e par t number in c lude s a pre f ix (a or udn) and a su ff ix (a or sl w ) as f ollow s : udn2981 a, udn2982 a, udn2982l w, or a2982sl w .
2981 and 2982 8-channel source drivers 115 northeast cutoff, box 15036 worcester, massachusetts 01615-0036 (508) 853-5000 4 test figures figure 1 figure 2 figure 3 dwg. no. a-11,083 dwg. no. a-11,084 dwg. no. a-11,085 v v in cex i s a v v v i out in ce s v ma open v v in in i s ma dwg. no. a-11,086 dwg. no. a-11,087 dwg. no. a-11,088 figure 5 figure 6 figure 4 open open v i f f v v s i r v in a v in i s s v open ma
2981 and 2982 8-channel source drivers www.allegromicro.com 5 allowable peak collector current as a function of duty cycle series udn2980a 100 v = 35 v 8 7 6 4 5 number of outputs conducting simultaneously 90 80 70 60 50 40 30 20 10 0 0 50 100 150 200 250 300 350 400 450 500 recommended maximum output current allowable peak collector current in ma at 50 c per cent duty cycle s 3 100 v = 35 v 8 7 6 4 5 number of outputs conducting simultaneously 90 80 70 60 50 40 30 20 10 0 0 50 100 150 200 250 300 350 400 450 500 recommended maximum output current allowable peak collector current in ma at 70 c per cent duty cycle s 3 dwg. no. a-11,111b dwg. no. a-11,106b udn2981a and udn2982a 100 v = 15 v 8 7 6 4 5 number of outputs conducting simultaneously 90 80 70 60 50 40 30 20 10 0 0 50 100 150 200 250 300 350 400 450 500 recommended maximum output current allowable peak collector current in ma at 50 c per cent duty cycle s 3 100 v = 15 v 8 7 6 4 5 number of outputs conducting simultaneously 90 80 70 60 50 40 30 20 10 0 0 50 100 150 200 250 300 350 400 450 500 recommended maximum output current allowable peak collector current in ma at 70 c per cent duty cycle s 3 dwg. no. a-11,107b dwg. no. a-11,108b
2981 and 2982 8-channel source drivers 115 northeast cutoff, box 15036 worcester, massachusetts 01615-0036 (508) 853-5000 6 input current as a function of input voltage typical electrosensitive printer application typical 2.5 input current, i (ma) in 2.0 1.5 1.0 0.5 2 4 6 8 10 12 input voltage (volts) maximum dwg. no. a-11,115b 1 2 3 4 5 6 7 8 9 11 12 13 14 15 16 17 18 10 electrodes in 1 in 2 in 3 in 4 in 5 in 6 in 7 in 8 v s r l r l r l r l r l r l r l r l dwg. no. a-11,113a
2981 and 2982 8-channel source drivers www.allegromicro.com 7 udn2981a and udn2982a dimensions in inches (controlling dimensions) dimensions in millimeters (for reference only) 0.014 0.008 0.300 bsc dwg. ma-001-18a in 0.430 max 18 1 9 0.280 0.240 0.210 max 0.070 0.045 0.015 min 0.022 0.014 0.100 bsc 0.005 min 0.150 0.115 10 0.920 0.880 notes: 1. exact body and lead configuration at vendor s option within limits shown. 2. lead spacing tolerance is non-cumulative. 3. lead thickness is measured at seating plane or below. 4. supplied in standard sticks/tubes of 21 devices. 0.355 0.204 7.62 bsc dwg. ma-001-18a mm 10.92 max 18 1 9 7.11 6.10 5.33 max 1.77 1.15 0.39 min 0.558 0.356 2.54 bsc 0.13 min 3.81 2.93 10 23.37 22.35
2981 and 2982 8-channel source drivers 115 northeast cutoff, box 15036 worcester, massachusetts 01615-0036 (508) 853-5000 8 udn2982lw (add tr to part number for tape and reel) dimensions in inches (for reference only) dimensions in millimeters (controlling dimensions) 0 to 8 1 2 3 0.020 0.013 0.0040 min. 0.0125 0.0091 0.050 0.016 d wg. ma-008-18a in 0.050 bsc 18 10 0.419 0.394 0.2992 0.2914 0.4625 0.4469 0.0926 0.1043 notes: 1. exact body and lead configuration at vendor s option within limits shown. 2. lead spacing tolerance is non-cumetive. 3. supplied in standard sticks/tubes of 41 devices or add tr to part number for tape and reel. 0 to 8 1 18 2 3 0.51 0.33 0.10 min. 0.32 0.23 1.27 0.40 dwg. ma-008-18a mm 1.27 bsc 10 7.60 7.40 10.65 10.00 11.75 11.35 2.65 2.35
2981 and 2982 8-channel source drivers www.allegromicro.com 9 a2982slw (add tr to part number for tape and reel) dimensions in inches (for reference only) dimensions in millimeters (controlling dimensions) 0 to 8 1 2 3 0.020 0.013 0.0040 min. 0.0125 0.0091 0.050 0.016 dwg. ma-008-20 in 0.050 bsc 20 11 0.2992 0.2914 0.419 0.394 0.5118 0.4961 0.0926 0.1043 notes: 1. exact body and lead configuration at vendor s option within limits shown. 2. lead spacing tolerance is non-cumulative. 3. supplied in standard sticks/tubes of 37 devices or add tr to part number for tape and reel. 0 to 8 1 20 2 3 0.51 0.33 0.10 min. dwg. ma-008-20 mm 1.27 bsc 11 0.32 0.23 1.27 0.40 7.60 7.40 10.65 10.00 13.00 12.60 2.65 2.35
2981 and 2982 8-channel source drivers 115 northeast cutoff, box 15036 worcester, massachusetts 01615-0036 (508) 853-5000 10 copyright ?1977, 2007, allegro microsystems, inc. the products described here are manufactured under one or more u.s. patents or u.s. patents pending. allegro microsystems, inc. reserves the right to make, from time to time, such departures from the detail specifications as may be required to permit improvements in the performance, reliability, or manufacturability of its products. before placing an order, the user i s cautioned to verify that the information being relied upon is current. allegro?s products are not to be used in life support devices or systems, if a failure of an allegro product can reasonably be expected to cause the failure of that life support device or system, or to affect the safety or effectiveness of that device or system. the information included herein is believed to be accurate and reliable. however, allegro microsystems, inc. assumes no respon sibility for its use; nor for any infringement of patents or other rights of third parties which may result from its use. for the latest version of this document, visit our website: www.allegromicro.com

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