ULN2003 li near i ntegrated ci rcui t youw ang electroni cs co. ltd 1 high voltage and high current darlington transistor array description the ULN2003 is a monolithic high voltage and high current darlington transistor arrays. it consists of seven npn darlington pairs that features high-voltage outputs with common-cathode clamp diode for switching inductive loads. the collector-current rating of a single darlington pair is 500ma. the darlington pairs may be parrlleled for higher current capability. applications include relay drivers,hammer drivers, lampdrivers,display drivers(led gas discharge),line drivers, and logic buffers. the ULN2003 has a 2.7k w series base resistor for each darlington pair for operation directly with ttl or 5v cmos devices. features * 500ma rated collector current(single output) * high-voltage outputs: 50v * inputs compatibale with various types of logic. * relay driver application dip-16 logic diagram schematic(each darlington pair) 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 1b 2b 3b 4b 5b 6b 7b e 1c 2c 3c 4c 5c 6c 7c com input b ouput c com e 7.2k 3k 2.7k
ULN2003 li near i ntegrated ci rcui t youw ang electroni cs co. ltd 2 absolute maximum ratings (ta=25 c) characteristic symbol value unit colletor-emitter voltage v ce 50 v input voltage v i 30 a peak collector current io 500 ma total emitter-terminal i ok 500 ma power dissipation pd 950 tamb=25 c 495 tamb<85 c mw mw operating temperature topr -20~ +85 c storage temperature tstg -65 ~ +150 c note: all volatge values are with repect to the emitter/substrate terminal e, unless otherwise noted. electrical characteristics (ta=25 c,unless otherwise specified) characteristic test figure symbol test conditions min typ max units v ce =2v,ic=200ma 2.4 v ce =2v,ic=250ma 2.7 on-state input voltage 6 v i(on) v ce =2v,ic=300ma 3 v i i =250 m a,ic=100ma 0.9 1.1 i i =350 m a,ic=200ma 11.3 collector-emitter saturation voltage 5v ce(sat) i i =500 m a,ic=350ma 1.2 1.6 v 1v ce =50v,i i =0 50 collector cutoff current 2 i cex v ce =50v,i i =0,ta=70 c 100 m a clamp forward voltage 8 v f i f =350ma 1.7 2 v off-state input current 3 i i (off) v ce =50v,i c =500ma, ta=70 c 50 65 m a input current 4 i i v i =3.85v 0.95 1.35 ma v r =50v 50 clamp reverse current 7 i r v r =50v, ta=70 c 100 m a input capacitance -- c i v i =0,f=1mhz 15 25 pf propagation delay time, low-to- high-level output 9t plh 0.25 1 m s propagation delay time, high- to-low-level output 9t phl 0.25 1 m s high-level output voltage after switching 10 v oh vs=50v,io=300ma vs-20 mv
ULN2003 li near i ntegrated ci rcui t youw ang electroni cs co. ltd 3 test circuits i cex v ce open open i cex v ce open v i figure 1 icex test circuit figure 2 icex test circuit i c v ce open i i(off) open i i(on) open v i figure 3 ii(off) test circuit figure 4 ii(on) test circuit v ce open i c ii ic hfe = i i v ce open i c ii ic hfe = v i(on) note: ii is fixed for measuring vce(sat),variable for measuring hfe. figure 5 hfe,vce(sat) test circuit figure 6 vi(on) test circuit
ULN2003 li near i ntegrated ci rcui t youw ang electroni cs co. ltd 4 v r open i r i f open v f figure 7 ir test circuit figure 8 vf test circuit t phl t plh 50% 50% 50% 50% input output figure 9. propagation delay time waveforms pulse generator (note a) vs 2mh 200 1n3064 cl=15pf input output (note b) 1.5v 1.5v 90% 10% 90% 10% <10ns input output vih=3v 0v voh vol note: a. the pulse generatoe has the following characteristics: prr=12.5khz, zo=50 w b. cl includes proble and jig capacitance. figure 10. latch-up test circuit and voltage waveforms
ULN2003 li near i ntegrated ci rcui t youw ang electroni cs co. ltd 5 typical performance characteristics 0 100 200 300 400 500 0 0.5 1.0 1.5 2.0 2.5 collector-emitter saturation voltage vs. collector current i i =250 a i i =350 a i i =500 a collector current, ic(ma) collector-emitter saturation voltage, v ce (sat) (v) ta=25 0 0.5 1.0 1.5 2.0 2.5 collector-emitter saturation voltage, v ce (sat) (v) 0 200 400 600 800 1000 total collector current, ic(tot) (ma) collector-emitter saturation voltage vs. total collector current (two darlington paralleled) ta=25 i i =250 a i i =250 a i i =500 a 0 50 100 150 200 250 input current, ii( a) 0 100 200 300 400 500 collector current vs. input current ta=25 rl=10 vs=10v vs=8v collector current, ic(ma) 0 20 40 60 80 100 duty cycle, (%) 0 100 200 300 400 500 maximum collector current, ic(ma) maximum collector current vs. duty cycle n=1 n=2 n=5 n=7 n= number of outputs conductiong simultaneously ta=70
ULN2003 li near i ntegrated ci rcui t youw ang electroni cs co. ltd 6 typical application circuit 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 v vcc ttl output lamp test ttl to load 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 v vcc ttl output rp use of pullup resistor to increase drive current
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