30712 sy 20120127-s00002 no.a2020-1/4 http://onsemi.com semiconductor components industries, llc, 2013 may, 2013 la6588mc overview the la6588mc is a single-phase bipolar fan motor ic for 24v power supply. btl output linear drive ensures highly-efficient, energy-saving, and silent drive while suppr essing the ineffective current. lock protection and lock signal circuit are incorporated, proving most suitable for consumer equipment power supply, oa equipment and car audio system, etc which require high reliability and low noise. functions ? single-phase full-wave linear drive by btl output (gain resistance 500 to 360k, 57db) : no switching noise, which is most favorable for use in equipment requiring silent operation, such as consumer equipment power supply, car audio system, etc. ? operable at low voltage and over a wide operation voltage range (8 to 26.4v) ? low saturation output (upper + lower saturation voltages: v o sat (total) = 1.1v typ, i o = 200ma) : high coil efficiency and small current dr ain. small heat generation from ic itself ? lock protection and automatic return circuits incorporated ? lock protection signal output (l during rotation, h at stop, open collector output) ? output (rotation detection output: open collector output) ? hall bias incorporated (v hb = 1.5v) ? heat protection circuit :the heat protection circuit suppresses the drive current to prevent burn or damage of ic when the large current flows due to output short-circuit and the ic chip temperature exceeds 180c. ? small package with high heat cap acity (mfp10sk) pin- compatible silent series (5v/12v/24v products) specifications absolute maximum ratings at ta = 25 c parameter symbol conditions ratings unit supply voltage v cc max 28 v output current i out max 0.8 a output withstand voltage v out max 28 v output withstand voltage of rd/fg output pin v rd/fg max 28 v rd/fg output current i rd/fg max 5ma hb output current i b max 10 ma allowable dissipation pd max mounted on a specified board. * 800 mw operating temperature topr -30 to +90 c storage temperature tstg -55 to +150 c * mounted on a specified board: 114.3 76.1 1.6 mm 3 , glass epoxy board. caution 1) absolute maximum ratings represent the va lue which cannot be exceeded for any length of time. caution 2) even when the device is used within the range of abso lute maximum ratings, as a result of continuous usage under hig h temperature, high current, high voltage, or drastic temperature change, the reliability of the ic may be degraded. please contact us for the further detai ls. monolithic linear ic 24v power supply, btl output linear drive single-phase fan motor ic orderin g numbe r : ENA2020 stresses exceeding maximum ratings may damage the device. maximum ratings are stress ratings only. functional operation above the recommended oper ating conditions is not implied. extended exposure to stresses above the recommended operating conditions may affect device reliabili ty.
la6588mc no.a2020-2/4 recommended operating conditions at ta = -30 to +90 c ratings parameter symbol conditions min typ max unit supply voltage v cc 8 26.4 v common-phase input voltage range of hall input v i cm 0 v cc ?1.5 v electrical characteristics at ta = 25 c, v cc = 24v, unless otherwise specified. ratings parameter symbol conditions min typ max unit i cc 1 during drive (ct = l) 4.5 7 9.5 ma circuit current i cc 2 during lock protection (ct = h) 2.5 4.5 6.5 ma lock detection capacitor charge current i ct 1 2.0 2.7 3.5 a capacitor discharge current i ct 2 0.15 0.23 0.30 a capacitor charge and discharge current ratio r ct rcd = i ct 1/i ct 2 10 12 14 ct charge voltage v ct 1 1.55 1.7 1.8 v ct discharge voltage v ct 2 0.65 0.75 0.85 v out output l saturation voltage v o l i o = 200ma 0.2 0.3 v out output h saturation voltage v o h i o = 200ma 0.9 1.2 v hall input sensitivity v hn zero peak value (including offset and hysteresis) 7 mv rd/fg output pin l voltage v rd/fg i rd/fg = 5ma 0.2 0.3 v rd/fg output pin leak current i rd/fg v rd/fg = 15v 1 3 a hb output voltage v hb i hb = 5ma 1.3 1.5 1.7 v truth table in - in + ct out1 out2 fg rd mode h l l h l l l during rotation l h l h h - - h off off - h during overheat protection -:don?t care.
la6588mc no.a2020-3/4 package dimensions unit : mm (typ) 3420 pin assignment block diagram out1 in + in - out2 1.5v reg h hb gnd v cc ct fg rd ct=0.47 to 1 f amp power supply control circuit charge discharge discharge pulse pd max -- ta ambient temperature, ta -- c allowable power dissipation, pd max -- w msg06804 -30 0 30 60 90 120 0 0.2 0.4 0.6 0.8 1.0 0.384 mounted on specified board: 114.3 76.11.6 mm 3 glass epoxy board. sanyo : mfp10sk(225mil) 1 10 2 0.8 max 1.55 1.0 0.35 5.0 0.15 6.2 (1.5) 0.05 4.4 0.5 1 2 3 4 5 10 9 8 7 6 in + in - hb ct out1 rd v cc fg out2 gnd top view la6588mc
la6588mc ps no.a2020-4/4 application circuit examples *1: when di to prevent breakdown in case of reverse connecti on is used, it is necessary to insert a capacitor cr to secure the regenerative current route. similarly, cr is necessary to enhance the reliability when there is no capacitor near the fan power line. *2: when taking hall bias from v cc , carry out bias to v cc with resistor r1 as shown in the figure. linear drive is achieved through voltage control of the coil by amplifying the hall output. with large hall element output, the start performance and efficiency are improved. noise can be reduced further by adjusting the hall element. *3: when the hall bias is taken from the hb pin, constant-v oltage bias is made with a bout 1.5v. therefore, the hall element can provide the output satisf actory in temperatur e characteristics. *4: keep this open when not using. *5: when the wiring from the hall output to ic hall input is long, noise may be carried through the wiring. in this case, insert the capacitor as shown in the figure. v cc rd fg out1 out2 gnd ct in + in - h hb r1 di cr *1 *2 *5 *4 h *3 in + in - hb on semiconductor and the on logo are registered trademarks of semiconductor components industries, llc (scillc). scillc owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. a listing of scillc?s product/patent coverage may be accessed at www.onsemi.com/site/pdf/patent-marking.pdf. scillc reserves the right to make changes without further notice to any products herein. scillc mak es no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does scillc assume any liability ar ising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequentia l or incidental damages. ?typical? parameters which may be provided in scillc data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. all operating parameters, including ?typicals? must be validated for each customer application by customer?s techn ical experts. scillc does not convey any license under its patent rights nor the rights of others. scillc products are not designed, intended, or authorize d for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other appli cation in which the failure of the scillc product could create a situation where personal injury or death may occur. should buyer purchase or use scillc products for any such unintended or unauthorized application, buyer shall indemnify and hold scillc and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of persona l injury or death associated with such unintended or unauthorized use, even if such claim alleges that scillc was negligent regarding the design or manufacture o fthe part. scillc is an equal opportunity/affirmative action employer. this literature is subject to all applicable copyright laws a nd is not for resale in any manner.
|
