unisonic technologies co., ltd UA9287 linear integrated circuit www.unisonic.com.tw 1 of 6 copyright ? 2012 unisonic technologies co., ltd qw-r109-013,b reversible motor driver ? description the utc UA9287 is designed for driving reversible-motor with a maximum output current of 1a. ther e are four output modes decided by two logic inputs: forward, reve rse, stop (idling), and brake. when the motor is in stop mode, t he current consumption can be suppressed. ? features * with the v ref pin, output voltage can be set arbitrarily. * the current dissipation can be suppresses with power saving circuit built-in when in stop mode. * thermal shutdown circuit built-in. * interfaces with ttl devices. sop-8 ? ordering information ordering number package packing lead free halogen free UA9287l-s08-r UA9287g-s08-r sop-8 tape reel UA9287l-s08-t UA9287g-s08-t sop-8 tube UA9287l-s08-r (1) packing type (2) package type (3) lead free (1) r: tape reel, t: tube (2) s08: sop-8 (3) g: halogen free, l: lead free
UA9287 linear integrated circuit unisonic technologies co., ltd 2 of 4 www.unisonic.com.tw qw-r109-013,b ? pin configuration ? pin description pin no. pin name function 1 out1 motor output 2 v m motor power supply 3 v cc power supply 4 f in logic input 5 r in logic input 6 v ref high level output voltage setting 7 out2 motor output 8 gnd gnd ? block diagram
UA9287 linear integrated circuit unisonic technologies co., ltd 3 of 4 www.unisonic.com.tw qw-r109-013,b ? absolute maximum rating (t a =25c, unless otherwise specified) parameter symbol ratings unit power supply voltage v cc 18 v output current i o ( ma x ) 1000 (note 2, 3) ma power dissipation p d 650 (note 2) mw derating factor above 25c 5.2 mw /c operating temperature t opr -20 ~ +75 c storage temperature t stg -55 ~ +150 c note: 1. a bsolute maximum ratings are those values beyond which the device could be permanently damaged. a bsolute maximum ratings are stress ratings only an d functional device operat ion is not implied. 2. when mounted on a glass epoxy board (50501.6mm) 3. should not exceed p d . ? recommended operating conditions (t a =25c) parameter symbol min typ max unit power supply voltage v cc 4.5 15 v motor power supply voltage v m 4.5 15 v output high level voltage setting pin v ref 4.5 15 v ? electrical characteristics (t a =25c, v cc =9v, v m =9v, v ref =9v, unless otherwise specified) parameter symbol test conditions min typ max unit supply current 1 i cc1 forward or reverse mode 12 24 36 ma supply current 2 i cc2 brake mode 29 48 67 ma standby supply current i st standby mode 15 a v ref pin sink current i ref forward or reverse mode i o =200ma 6 12 18 ma input high level voltage v ih 2.0 v input low level voltage v il 0.8 v input high level current i ih v in =2.0v 45 90 135 a output saturation voltage v ce i o =200ma, sum of output transistor high-and low-side voltages 1.0 1.5 v
UA9287 linear integrated circuit unisonic technologies co., ltd 4 of 4 www.unisonic.com.tw qw-r109-013,b ? typical application circuit + v cc logic signals 1 2 3 4 8 7 6 5 m figure 1. 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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