uln2801a uln2804a - uln2805a uln2802a - ULN2803A september 1997 eight darlington arrays . eight darlingtons with common emit- ters . output current to 500 ma . output voltage to 50 v . integral suppression diodes . versions for all popular logic fami- lies . output can be paralleled . inputs pinned opposite outputs to simplify board layout description the uln2801a-uln2805a each contain eight dar- lington transistors with common emitters and inte- gral suppression diodes for inductive loads. each darlington features a peak load current rating of 600ma (500ma continuous) and can withstand at least 50v in the off state. outputs may be paralleled for higher current capability. five versions are available to simplify interfacing to standard logic families : the uln2801a is designed for general purpose applications with a current limit resistor ; the uln2802a has a 10.5k w input resistor and zener for 14-25v pmos ; the ULN2803A has a 2.7k w input resistor for 5v ttl and cmos ; the uln2804a has a 10.5k w input resistor for 6-15v cmos and the uln2805a is designed to sink a minimum of 350ma for standard and schottky ttl where higher output current is required. all types are supplied in a 18-lead plastic dip with a copper lead from and feature the convenient input- opposite-output pinout to simplify board layout. dip18 pin connection (top view) 1/8
schematic diagram and order codes for uln2801a (each driver for pmos-cmos) for uln2802a (each driver for 14-15 v pmos) for uln2804a (each driver for 6-15 v cmos/pmos for ULN2803A (each driver for 5 v, ttl/cmos) for uln2805a (each driver for high out ttl) uln2801a - uln2802a - ULN2803A - uln2804a - uln2805a 2/8
thermal data symbol parameter value unit r th jCamb thermal resistance junction-ambient max. 55 c/w 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 = 70 c, v ce = 50v t amb = 70 c for uln2802a v ce = 50v, v i = 6v for uln2804a v ce = 50v, v i = 1v 50 100 500 500 m a m a m a m a 1a 1a 1b 1b v ce(sat) collector-emitter saturation voltage i c = 100ma, i b = 250 m a i c = 200ma, i b = 350 m a i c = 350ma, i b = 500 m a 0.9 1.1 1.3 1.1 1.3 1.6 v v v 2 i i(on) input current for uln2802a v i = 17v for ULN2803A v i = 3.85v for uln2804a v i = 5v v i = 12v for uln2805a v i = 3v 0.82 0.93 0.35 1 1.5 1.25 1.35 0.5 1.45 2.4 ma ma ma ma ma 3 i i(off) input current t amb = 70 c, i c = 500 m a5065 m a4 v i(on) input voltage v ce = 2 v for uln2802a i c = 300ma for ULN2803A i c = 200ma i c = 250ma i c = 300ma for uln2804a i c = 125ma i c = 200ma i c = 275ma i c = 350ma for uln2805a i c = 350ma 13 2.4 2.7 3 5 6 7 8 2.4 v v v v v v v v v 5 h fe dc forward current gain for uln2801a v ce = 2v, i c = 350ma 1000 C 2 c i input capacitance 15 25 pf C t plh turn-on delay time 0.5 v i to 0.5 v o 0.25 1 m sC t phl turn-off delay time 0.5 v i to 0.5 v o 0.25 1 m sC i r clamp diode leakage current v r = 50v t amb = 70 c, v r = 50v 50 100 m a m a 6 6 v f clamp diode forward voltage i f = 350ma 1.7 2 v 7 absolute maximum ratings symbol parameter value unit v o output voltage 50 v v i input voltage for uln2802a, ul2803a, uln2804a for uln2805a 30 15 v i c continuous collector current 500 ma i b continuous base current 25 ma p tot power dissipation (one darlington pair) (total package) 1.0 2.25 w t amb operating ambient temperature range C 20 to 85 c t stg storage temperature range C 55 to 150 c tj junction temperature range C 20 to 150 c uln2801a - uln2802a - ULN2803A - uln2804a - uln2805a 3/8
test circuits figure 1a. figure 1b. figure 2. figure 3. figure 4. figure 5. figure 6. figure 7. uln2801a - uln2802a - ULN2803A - uln2804a - uln2805a 4/8
figure 8 : collector current as a function of saturation voltage. figure 9 : collector current as a function of input current. figure 10 : allowable average power dissipation as a function of ambient temperature. figure 11 : peak collector current as a function of duty cycle. figure 12 : peak collector current as a function of duty. figure 13 : input current as a function of input voltage (for uln2802a). uln2801a - uln2802a - ULN2803A - uln2804a - uln2805a 5/8
figure 14 : input current as a function of input voltage (for uln2804a) figure 15 : input current as a function of input voltage (for ULN2803A) figure 16 : input current as a function of input voltage (for uln2805a) uln2801a - uln2802a - ULN2803A - uln2804a - uln2805a 6/8
dip18 package mechanical data dim. mm inch min. typ. max. min. typ. max. a1 0.254 0.010 b 1.39 1.65 0.055 0.065 b 0.46 0.018 b1 0.25 0.010 d 23.24 0.915 e 8.5 0.335 e 2.54 0.100 e3 20.32 0.800 f 7.1 0.280 i 3.93 0.155 l 3.3 0.130 z 1.27 1.59 0.050 0.063 uln2801a - uln2802a - ULN2803A - uln2804a - uln2805a 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 rights of third parties which may resu lt from its use. no license is granted by implication or otherwise under any patent or patent rights of sgs-thomson microelectronics. speci fication mentioned in this publication are subject to change without notice. this publication supersedes and replaces all information pr eviously supplied. sgs-thomson microelectronics products are not authorized for use as critical components in life support devices or sy stems without express written approval of sgs-thomson microelectronics. ? 1997 sgs-thomson microelectronics C printed in italy C 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. uln2801a - uln2802a - ULN2803A - uln2804a - uln2805a 8/8
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