2596 and 2597 8-channel saturated sink drivers 8-channel saturated sink drivers low output-saturation voltages at high load currents are provided by udn2596a and udn2597a sink driver ics. these devices can be used as interface buffers between standard low-power digital logic (particularly mos) and high-power loads such as relays, solenoids, stepping motors, and led or incandescent displays. the eight satu- rated sink drivers in each device feature high-voltage, high-current open-collector outputs. transient suppression clamp diodes and a minimum 35 v output sustaining voltage allow their use with many inductive loads. the saturated (non-darlington) npn outputs provide low collector- emitter voltage drops as well as improved turn-off times due to an active pull-down function within the output predrive section. the udn2596a is for use with output loads to 500 ma while the udn2597a is for use with loads to 1 a. adjacent outputs may be paralleled for higher load currents. inputs require very low input current and are activated by a low logic level consistent with the much greater sinking capability associ- ated with nmos, cmos, and ttl logic. the udn2596a and udn2597a are rated for use with 5 v logic levels. both devices are furnished in 20-pin dip packages with copper leadframes for improved thermal characteristics. the udn2596a is also available for operation between -40 c and +85 c. to order, change the prefix from udn to udq. one of eight drivers absolute maximum ratings at t a = + 25 c outputvoltage,v ce ................................ 50 v output current, i out (udn2596a) ............................ 500 ma (udn2597a) ................................ 1.0 a supply voltage, v cc ............................ 7.0 v input voltage, v ln ................................. 7.0 v package power dissipation, p d ............................................. 2.27 w* operating temperature range, t a ................................. -20 c to +85 c storage temperature range, t s .............................. - 65 c to +150 c *derate at the rate of 18.2 mw/ c above t a = +25 c dwg. no. w-100 dwg. no. w-101 data sheet 29320.2b features n non-inverting function n low output on voltages n up to 1.0 a sink capability n 50 v min. output breakdown n output transient-suppression diodes 2596 and 2597 n output pull-down for fast turn-off n ttl, cmos compatible inputs n automotive capable
2596 and 2597 8-channel saturated sink drivers 115 northeast cutoff, box 15036 worcester, massachusetts 01615-0036 (508) 853-5000 limits characteristics symbol devices test conditions min. max. units output leakage current i cex both v out = 50 v, v in = 2.4 v 10 m a output sustaining voltage v ce(sus) udn2596a l out = 300 ma, l = 2 mh 35 v udn2597a l out = 750 ma, l = 2 mh 35 v output saturation voltage v ce(sat) udn2596a l out = 300 ma 0.5 v udn2597a l out = 750 ma 1.0 v clamp diode leakage current i r both v r = 50 v 10 m a clamp diode forward voltage v f udn2596a i f = 300 ma 1.8 v udn2597a i f = 750 ma 1.8 v logic lnput current i ln(0) udn2956a v in = 0.8 v -15 m a udn2597a v in = 0.8 v -50 m a i ln(1) both v in = 2.4 v 10 m a supply current i cc(on) udn2596a any one driver v in = 0.8 v 6.0 ma udn2597a any one driver v in = 0.8 v 31 ma i cc(off) udn2596a all drivers v in = 2.4 v 0.75 1.3 ma udn2597a all drivers v in = 2.4 v 0.75 15 ma turn-on delay t pd0 both 0.5 e in to 0.5 e out 3.0 m s turn-off delay t pd1 both 0.5 e in to 0.5 e out 2.0 m s applicable electrical characteristics at t a = +25 c, v cc = 5.0 v copyright ? 1984, 1999, allegro microsystems, inc. recommended operating conditions type number logic i out udn2596a 5.0 v 300 ma udn2597a 5.0 v 750 ma note: pins 2 and 12 must both be connected to power ground. typical application dual stepper motor drive
2596 and 2597 8-channel saturated sink drivers 0.014 0.008 0.300 bsc dwg. ma-001-20 in 0.430 max 20 1 10 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 11 1.060 0.980 0.355 0.204 7.62 bsc dwg. ma-001-20 mm 10.92 max 20 1 10 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 11 26.92 24.89 notes: 1. exact body and lead configuration at vendors option within limits shown. 2. lead spacing tolerance is non-cumulative. 3. lead thickness is measured at seating plane or below. 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 design of its products. the information included herein is believed to be accurate and reliable. however, allegro microsystems, inc. assumes no responsibility for its use; nor for any infringements of patents or other rights of third parties which may result from its use. dimensions in inches (controlling dimensions) dimensions in millimeters (for reference only)
2596 and 2597 8-channel saturated sink drivers 115 northeast cutoff, box 15036 worcester, massachusetts 01615-0036 (508) 853-5000 power sink drivers selection guide in order of 1) output current, 2) output voltage, 3) number of drivers output ratings * features serial latched diode saturated internal ma v # input drivers clamp outputs protection part number ? 100 20 8 e e e x e 2595 30 32 x x e e e 5833 40 32 x x e x e 5832 250 135 7 e e x e e 7003 300 45 1 hall sensor/driver x e x 5140 50 7 e e x e e 2003 50 8 e e x e e 2803 50 8 e e x x e 2596 60 2 hall sensor/driver e x e 5275 60 4 e e x x x 2557 95 7 e e x e e 2023 95 8 e e x e e 2823 350 50 4 e x x e e 5800 50 7 e e x e e 2004 50 8 e e x e e 2804 50 8 e x x e e 5801 50 8 x x e e e 5821 80 8 x x e e e 5822 50 8 x x x e e 5841 80 8 x x x e e 5842 95 7 e e x e e 2024 95 8 e e x e e 2824 450 30 28 dual 4 to 14-line decoder/driver e e 6817 600 60 4 e e e x x 2547 60 4 e e x x x 2549 700 60 4 e e x x x 2543 and 2559 750 50 8 e e x x e 2597 900 14 2 hall sensor/driver x x x 3625 26 2 hall sensor/driver x x x 3626 1000 46 4 stepper motor controller/driver mos e 7024 and 7029 1200 46 4 microstepping controller/driver mos e 7042 1250 50 4 stepper motor translator/driver e x 5804 50 4 e e x e e 2064 and 2068 1500 80 4 e e x e e 2065 and 2069 1600 50 9 x x e e x 5829 1800 50 4 e e x e e 2544 50 4 e e x e e 2540 3000 46 4 stepper motor controller/driver mos e 7026 46 4 microstepping controller/driver mos e 7044 4000 50 4 e e x e e 2878 80 4 e e x e e 2879 * current is maximum specified test condition, voltage is maximum rating. see specification for sustaining voltage limits or over-current protection voltage limits. ? complete part number includes additional characters to indicate operating temperature range and package style.
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