unisonic technologies co., ltd ULN2003 linear integrated circuit www.unisonic.com.tw 1 of 10 copyright ? 2011 unisonic technologies co., ltd qw-r113-001.j 7ch darlington sink driver ? description the utc ULN2003 are high-voltage, high-current darlington drivers comprised of seven npn darlington pairs. all units feature integral clamp diodes for switching inductive loads. applications include relay, hammer, lamp and display (led) drivers. ? features *output current (single output): 500ma (max.) *high sustaining voltage output: 50v (min.) *output clamp diodes *inputs compatible with various types of logic ? ordering information ordering number lead free halogen free package packing ULN2003l-d16-t ULN2003g-d16-t dip-16 tube ULN2003l-s16-r ULN2003g-s16-r sop-16 tape reel ULN2003l-s16-t ULN2003g-s16-t sop-16 tube
ULN2003 linear integrated circuit unisonic technologies co., ltd 2 of 10 www.unisonic.com.tw qw-r113-001.j ? pin connection ? block diagram note: the input and output parasitic diodes cannot be used as clamp diodes.
ULN2003 linear integrated circuit unisonic technologies co., ltd 3 of 10 www.unisonic.com.tw qw-r113-001.j ? absolute maximum ratings (t a =25 c) parameter symbol rating unit output sustaining voltage v out -0.5~50 v input voltage v in -0.5~30 v clamp diode reverse voltage v r 50 v output current i out 500 ma / ch clamp diode forward current i f 500 ma dip-16 1.47 w power dissipation sop-16 p d 1.25 (note2) w junction temperature t j +125 c operating temperature t opr -40~+85 c storage temperature t stg -55~+150 c note: 1. absolute maximum ratings are those values beyond which the device could be permanently damaged. absolute maximum ratings are stress ratings only an d functional device operat ion is not implied. 2. on pcb (test board: jedec 2s2p) ? recommended operating conditions (t a =-40 +85 c) characteristic symbol test conditions min typ max unit output sustaining voltage v out 0 50 v duty = 10% 0 350 dip-16 duty = 50% 0 100 duty = 10% 0 300 output current sop-16 i out t pw = 25ms 7 circuits t a = 85c t j = 120c duty = 50% 0 90 ma/ch input voltage v in 0 24 v input voltage (output on) v in (on) i out = 400ma 2.8 24 v input voltage (output off) v in (off) 0 0.7 v clamp diode reverse voltage v r 50 v clamp diode forward current i f 350 ma dip-16 t a = 85c 0.76 power dissipation sop-16 p d t a = 85c (note) 0.65 w note: on pcb (test board: jedec 2s2p) ? electrical characteristics (t a =25c unless otherwise specified) characteristic symbol test circuit t est conditions min typ max unit v ce = 50 v, t a = 25c 50 output leakage current i leak 1 v ce = 50 v, t a = 85c 100 a i out = 350 ma, i in = 500 a 1.3 1.6 i out = 200 ma, i in = 350 a 1.1 1.3 collector-emitte r saturation voltage v ceo(sat) 2 i out = 100 ma, i in = 250 a 0.9 1.1 v dc current transfer ratio h fe 2 v ce = 2 v, i out = 350 ma 1000 input current (output on) i in (on) 3 v in = 2.4 v, i out = 350 ma 0.4 0.7 ma input current (output off) i in (off) 4 i out = 500 a, t a = 85c 50 65 a i out = 350 ma 2.6 input voltage (output on) v in(on) 5 v ce = 2 v i out = 200 ma 2.0 v v r = 50 v, t a = 25c 50 clamp diode reverse current i r 6 v r = 50 v, t a = 85c 100 a clamp diode forward voltage v f 7 i f = 350 ma 2.0 v input capacitance c in 15 pf turn-on delay t on 8 v out = 50 v, r l = 125 ? c l = 15 pf 0.1 turn-off delay t off 8 v out = 50 v, r l = 125 ? c l = 15 pf 0.2 s
ULN2003 linear integrated circuit unisonic technologies co., ltd 4 of 10 www.unisonic.com.tw qw-r113-001.j ? test circuit components in the test circuits are used only to obtain and confirm the device charac teristics. these components and circuits are not guaranteed to prevent malfunction or failure from occurring in the application equipment. open v in open i leak v ce open open i r v r v in(on) open i out v ce open i out i in(off) open i out v ce ,v ceo(sat) i in hfe= open i in(on) open v in 1. i leak 2. v ceo(sat) ,hfe 3. i in(on) 4. i in(off) 5. v in(on) 6. i r i out i in v in
ULN2003 linear integrated circuit unisonic technologies co., ltd 5 of 10 www.unisonic.com.tw qw-r113-001.j ? test circuit(cont.) open open v f i f 7. v f note 1: pulse width 50s ,duty cycle 10% output impedance 50 t r 5ns, t f 10ns note 2: see below note 3: c l includes probe and jig capacitance type number ULN2003 r1 0 v ih 3v input condition 8. t on , t off pulse generator note 2 input open v out r l cl=15pf (note 3) (note 1) output input output 50 t on t off 90 50 10 90 50 10 t r t f 50s v ih 0 v ol v o h 50
ULN2003 linear integrated circuit unisonic technologies co., ltd 6 of 10 www.unisonic.com.tw qw-r113-001.j ? application notes this utc ULN2003 does not include built-in protection circuits fo r over-current or over-voltage. if this ic is subjected to over-current or over-voltage, it may be des troyed. hence, the utmost care must be taken when systems which incorporate this ic are designed. utmost care is necessary in the design of the output line, common and gnd line since ic may be destroyed due to short-circui t between outputs, air contami nation fault, or fault by improper grounding. the utc ULN2003 is a darlington driver array, and can be directly coupled to a general logic circuit such as ttl or cmos. resistors are connected in series to eac h of the inputs to achieve a stable input current. the load should be connected between the output and the powe r supply. to protect the ic from excessive swing voltage, the common pin (pin 9) should be connected to the power supply. the utc ULN2003 can absorb the surge current because of t he on-chip diode. the bottom figure shows the configuration of the on-chip diode. in the construction of the surge-absorb ing diode, there is parasit ic pnp, output pin for emitter, common pin for base and the substrate (p-sub) for collect or. when the diode is on, current flows from the output pin to the substrate. when using the surge-absorbing diode, appropriate measures should be taken for the thermal characteristics of the design considering the current. for example, when motor back-rush current or other conditions that can create continued surge current flow to the surge-absorbing diode, we strongly recommend connecting a schottky barrier diode (or other type of diode with a low forward voltage) in parallel with the surge-absorbing diode to construct a bypass route for the surge current.
ULN2003 linear integrated circuit unisonic technologies co., ltd 7 of 10 www.unisonic.com.tw qw-r113-001.j ? notice on product use (1) the absolute maximum ratings of the ic are a set of ratings that must not be exceeded, even for a moment. exceeding the rating(s) may cause the device breakdo wn, damage or deterioration, and may cause injury by explosion or combustion. (2) to ensure that a large current does not continuously flow in case of over current and/or ic failure, an appropriate power supply fuse should be used. the ic will fully breakdown under conditi ons that exceed its absolute maximum ratings. for example, when the wiring is routed improperly or when an abnormal pulse noise occurs from the wiring or load, causing a large curr ent to continuously flow and the break down can lead smoke or ignition. to minimize the effects of the flow of a large current in ca se of breakdown, careful settings, such as fuse capacity, fusing time and insertion circuit location, are required. (3) if the design includes an inductive load such as a moto r coil, the current resulting from the inrush current at power on or the negative current re sulting from the back electromotive force at power off can cause device malfunction or breakdown, so a protection circuit need to be incorporated into the design. ic breakdown may cause injury, smoke or ignition. when the power supply is unst able, the build-in protection function may not operate, causing ic breakdown. ic breakdown may cause injury, smoke or ignition. (4) do not mount devices in the wron g orientation or incorrectly. make sure that the pos itive and negative terminals of power supplies are connected properly. otherwi se, the current or power consumption may exceed the absolute maximum rating, and may cause the device breakdow n, damage or deterioration, and may result injury by explosion or combustion. in addition, do not use any device that is applied the current with inserting in the wrong orientation or incorrectly even just one time. (5) carefully select external components (such as inpu ts and negative feedback capacitors) and load components (such as speakers), for example, power amp and regulator. if there is a large amount of leakage current such as input or negative feedback condenser, the ic output dc voltage will increase. if th is output voltage is connected to a speaker with low input withstand voltage, over-current or ic failure can cause smoke or ignition. (the over-current can cause smoke or ignition from the ic itself.) in par ticular, please pay attention to the bridge tied load (btl) connection type ic that inputs output dc voltage to a speaker directly. ? points to remember on product use (1) heat radiation design when ic is used with large current flow such as power am p, regulator or driver, the heat radiation consideration should be designed carefully, not to exceed the specified junction temperature (tj) at any time and condition. an inadequate ic heat radiation design can lead to decrease in ic life, deterioration of ic characteristics or ic breakdown. meanwhile, also should take into considerate t he effect of ic heat radiation with peripheral components. (2) back-emf when a motor rotates in the reverse direction, stops or slows down abruptly, a current flow back to the motor?s power supply due to the effect of back-emf. the device?s motor power supply and output pins might be exposed to conditions excessing absolute maximum ratings, when the curr ent sink capability of the power supply is small. to avoid happening, take the effect of back-em f into consideration in system design.
ULN2003 linear integrated circuit unisonic technologies co., ltd 8 of 10 www.unisonic.com.tw qw-r113-001.j ? typical characteristics o u t p u t c u r r e n t i o u t ( m a ) o u t p u t c u r r e n t i o u t ( m a ) i n p u t c u r r e n t i i n ( m a ) i n p u t c u r r e n t i i n ( m a )
ULN2003 linear integrated circuit unisonic technologies co., ltd 9 of 10 www.unisonic.com.tw qw-r113-001.j ? typical characteristics(cont.) output current i out (ma) o u t p u t c u r r e n t i o u t ( m a ) c l a m p d i o d e f o r w a r d c u r r e n t i f ( m a ) dc current transfer ratio, h fe
ULN2003 linear integrated circuit unisonic technologies co., ltd 10 of 10 www.unisonic.com.tw qw-r113-001.j ? typical characteristics(cont.) p o w e r d i s s i p a t i o n p d ( w ) utc assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all utc products described or contained herein. utc products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. the information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
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