uln2064b - uln2066b uln2074b - uln2076b uln2068b - uln2070b april 1993 50v - 1.5a quad darlington switches . output current to 1.5 a each dar- lington . minimum breakdown 50 v . sustaining voltage at least 35 v . integral suppression diodes (uln2064b, uln2066b, uln2068b and uln2070b) . isolated darlington pinout (uln2074b, uln2076b) . versions compatible with all popu- lar logic families powerdip 12 + 2 + 2 pin connections and order codes uln2064b uln2066b uln2068b uln2070b uln2074b uln2076b description designed to interface logic to a wide variety of high current, high voltageloads, thesedeviceseach con- tain four npn darlington switches delivering up to 1.5 a with a specified minimum breakdown of 50 v and a sustaining voltage of 35 v measured at 100 ma. the uln2064b, uln2066b, uln2068b and uln2070b contain integral suppression diodes for inductive loads have common emitters. the uln2074b and uln2076b feature isolated dar- lington pinouts and are intended for applications such as emitter followerconfigurations.inputsof the uln2064b, uln2068b and uln2074b are com- patible with popular 5 v logic families and the uln2066b and uln2076b are compatible with 6- 15 v cmos and pmos. types uln2068b and uln2070binclude a predriverstageto reduceload- ing on the control logic. 1/8
schematic diagram uln2064b : r in = 350 w uln2066b : r in =3k w uln2068b : r in = 2.5k w ,r s = 900 w uln2070b : r in = 11.6k w ,r s = 3.4k w uln2074b : r in = 350 w uln2076b : r in =3k w absolute maximum ratings symbol parameter value unit v cex output voltage 50 v v ce(sus) output sustaining voltage 35 v i o output current 1.75 a v i input voltage for uln2066b 2070b - 2074b - 2076b for uln2064b 2068b 30 15 v v i i input current 25 ma v s supply voltage for uln2068b for uln2070b 10 20 v v p tot power dissipation at t pins =90 c at t amb =70 c 4.3 1 w w t amb operating ambient temperature range 20 to 85 c t stg storage temperature 55 to 150 c electrical characteristics (t amb =25 o c unless otherwise specified ) symbol parameter test conditions min. typ. max. unit fig. i cex output leakage current v ce = 50v t amb =25 c t amb =70 c 100 500 m a m a 1 v ce(sus) collector-emitter sustaining voltage i c = 100ma, v i = 0.4v 35 v 2 v ce(sat) collector-emitter saturation voltage i c = 500ma i b = 625 m a i c = 750ma i b = 935 m a i c =1a i b = 1.25ma i c = 1.25a i b = 2ma 1.1 1.2 1.3 1.4 v v v v 3 3 3 3 i i(on) input current for uln2064b and uln2074b v i = 2.4v v i = 3.75v for uln2066b and uln2076b v i =5v v i = 12v for uln2068b v i = 2.75v v i = 3.75v for uln2070b v i =5v v i = 12v 1.4 3.3 0.6 1.7 4.3 9.6 1.8 5.2 0.55 1.0 0.4 1.25 ma ma ma ma ma ma ma ma 4 4 4 4 4 4 4 4 ULN2064B-ULN2066B-uln2068b-uln2070b-uln2074b-uln2076b 2/8
electrical characteristics (t amb =25 o c unless otherwise specified ) (continued) symbol parameter test conditions min. typ. max. unit fig. v i(on) input voltage v ce = 2v, i c =1a uln2064b, uln2074b uln2066b, uln2076b v ce = 2v, i c = 1.5a uln2064b, uln2074b uln2066b, uln2076b uln2068b uln2070b 2 6.5 2.5 10 2.75 5 v v v v v v 5 5 5 5 5 5 i s supply current for uln2068b i c = 500ma, v i = 2.75v for uln2070b i c = 500ma, v i =5v 6 4.5 ma ma 8 8 t plh turn-on delay time 0.5 v i to 0.5 v o 1 m s t phl turn-off delay time 0.5 v i to 0.5 v o 1.5 m s i r clamp diode leakage current for ULN2064B-ULN2066B and uln2068b-uln2070b v r =50v t amb =25 c t amb =70 c 50 100 m a m a 6 v f clamp diode forward voltage for ULN2064B-ULN2066B and uln2068b-uln2070b i f =1a i f = 1.5 a 1.75 2 v v 7 no tes : 1. input voltage is with reference to the substrate (no connection to any other pins) for the uln2074b and uln2076b reference is ground for all other types. 2. input current may be limited by maximum allowable input voltage. test circuits figure 1. figure 2. figure 3. figure 4. ULN2064B-ULN2066B-uln2068b-uln2070b-uln2074b-uln2076b 3/8
figure 5. figure 6. figure 7. figure 8. figure 9 : input current as a function of input voltage. figure 10 : input current as a function of input voltage. figure 11 : collector current as a function of input current. ULN2064B-ULN2066B-uln2068b-uln2070b-uln2074b-uln2076b 4/8
mounting instructions the r th j-amb can be reduced by soldering the gnd pins to a suitable copper area of the printed circuit board (fig. 12) or to an external heatsink (fig. 13). the diagram of figure 14 shows the maximum dis- sipable power p tot and the r th j-amb as a function of the side o a o of two equal square copper areas hav- ing a thickness of 35 m (1.4 mils). during soldering the pins temperature must not ex- ceed 260 c and the soldering time must not be longer than 12 seconds. the external heatsink or printed circuit copper area must be connected to electrical ground. figure 12 : example of p.c. board area which is used as heatsink. figure 13 : externalheatsink mounting example. figure 14 : maximum dissipable power and junc- tion to ambient thermal resistance vs. side o a o. figure 15 : maximum allowable power dissipa- tion vs. ambient temperature. ULN2064B-ULN2066B-uln2068b-uln2070b-uln2074b-uln2076b 5/8
typical applications figure 16 : common-anode led drivers. figure 17 : common-cathode led drivers. ULN2064B-ULN2066B-uln2068b-uln2070b-uln2074b-uln2076b 6/8
powerdip 16 package mechanical data dim. mm inch min. typ. max. min. typ. max. a1 0.51 0.020 b 0.85 1.40 0.033 0.055 b 0.50 0.020 b1 0.38 0.50 0.015 0.020 d 20.0 0.787 e 8.80 0.346 e 2.54 0.100 e3 17.78 0.700 f 7.10 0.280 i 5.10 0.201 l 3.30 0.130 z 1.27 0.050 ULN2064B-ULN2066B-uln2068b-uln2070b-uln2074b-uln2076b 7/8
information furnished is believed to be accurate and reliable. however, sgs-thomson microelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rig hts of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of sgs-thomson microelectronics. specification mentioned in this publication are subject to change without notice. this publication supersedes and replaces all information previously supplied. sgs-thomson microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of sgs-thomson microelectronics. ? 1996 sgs-thomson microelectronics printed in italy all rights reserved sgs-thomson microelectronics group of companies australia - brazil - canada - china - france - germany - hong kong - italy - japan - korea - malaysia - malta - morocco - the netherlands - singapore - spain - sweden - switzerland - taiwan - thailand - united kingdom - u.s.a. ULN2064B-ULN2066B-uln2068b-uln2070b-uln2074b-uln2076b 8/8
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