60612 sy 20120326-s00008 no.a2073-1/5 http://onsemi.com semiconductor components industries, llc, 2013 may, 2013 LA6597FMC overview the LA6597FMC drives the single-phase bipolar fan motor by means of the btl output linear drive highly efficiently while suppressing the reactive current, in the power-saving and silent manner. with incorporated lock protection and lock signal circuits, this product is optimum for fans of car audio, projector, and vga card where the high-temperature operation, high reliability, and low noise are required. functions ? single-phase full-wave linear drive by btl output (gain resistance 1k to 240k, 48db) : no switching noise, which is optimum for equipment requiring silent operation of the projector and car audio. ? operable at low voltage and over a wide operation voltage range (2.2 to 14.0v) ? 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 ? diffusion of generated heat : connection of external resistor between v m and v cc enables reduction of heat generation of ic itself. (upper side + lower side saturation voltage: vosat (total) = 0.85vtyp, i o = 300ma, r m = 1 ? ) ? lock protection and automatic return circuits incorporated ? fg output (rotation detection output: open collector output) ? hall bias incorporated (v hb = 1.55v) ? 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 capacity specifications absolute maximum ratings at ta = 25 c parameter symbol conditions ratings unit supply voltage v cc max 15 v output current i out max 1.0 a output withstand voltage v out max 15 v output withstand voltage of fg output pin v fg max 15 v fg output current i fg max 5ma hb output current i hb max 10 ma allowable dissipation pd max mounted on a specified board. * 750 mw operating temperature topr -30 to +110 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 single-phase full-wave fan motor ic orderin g numbe r : ena2073 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.
LA6597FMC no.a2073-2/5 recommended operating conditions at ta = 25 c parameter symbol conditions ratings unit supply voltage v cc 2.2 to 14.0 v common-phase input voltage range of hall input v i cm 0 to v cc ?1.5 v electrical characteristics at ta = 25 c, v cc = 12v, unless otherwise specified. ratings parameter symbol conditions min typ max unit i cc 1 during drive (ct = l) 4.5 6.0 8.5 ma circuit current i cc 2 during lock protection (ct = h) 3.0 4.5 6.0 ma lock detection capacitor charge current i ct 1 2.0 2.8 3.5 a capacitor discharge current i ct 2 0.14 0.22 0.30 a capacitor charge and discharge current ratio r ct rcd = i ct 1/i ct 2 9 12 15 ct charge voltage v ct 1 1.40 1.55 1.70 v ct discharge voltage v ct 2 0.4 0.5 0.6 v out output l saturation voltage v o l i o = 300ma 0.2 0.3 v out output h saturation voltage v o h i o = 300ma 0.65 0.85 v hall input sensitivity v hn in+, in- difference voltage (including offset and hysteresis) 10 15 mv fg output pin l voltage v fg i fg = 5ma 0.1 0.2 v fg output pin leak current i fg v fg = 15v 1 a hb output voltage v hb l i hb = 5ma 1.40 1.55 1.70 v truth table in - in + ct out1 out2 fg mode h l l h l l during rotation l h l h h - - h off off - during overheat protection -:don?t care.
LA6597FMC no.a2073-3/5 package dimensions unit : mm (typ) 3426a pin assignment sanyo : soic10 4.9 3.9 6.0 6 10 5 1 0.835 0.21 0.37 0.41 1.0 0.175 1.5 1.75 max pd max -- ta -30 0 30 60 90 120 0 0.2 0.4 0.6 0.8 1.0 0.24 ambient temperature, ta -- c allowable power dissipation, pd max -- w mounted on specified board: 114.3 76.1 1.6 mm 3 glass epoxy board. 1 2 3 4 5 10 9 8 7 6 in + in - hb ct out1 vm v cc fg out2 gnd top view LA6597FMC
LA6597FMC no.a2073-4/5 block diagram out1 in + in - out2 1.5v reg h hb gnd v cc fg vm control circuit charge discharge discharge pulse
LA6597FMC ps no.a2073-5/5 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 ( 0.47f) is necessary to enhance the reliability when there is no capacitor near the fan power line. *2: this ic performs linear drive by amplifying the hall output and by voltage-controlling the coil. the hall element is biased by means of the bias from v cc with r1 and by means of the constant voltage (v hb = 1.5v) from the hb pin. as a result, stable hall output is obtained even at high temperatures. *3: heat generated in ic is dissipated by inserting the resistor r m between v cc and v m , which enables the use of the product in the environment with high ambient temperature. recommended r m s is as follows: r m = 1 ? /0.5w (ioave = 0.25a or more) r m = 2 ? /0.5w (ioave = 0.25a or less) *4: keep this open when not using. v cc fg out1 out2 gnd ct in + in - h hb r1 di cr *1 *2 *4 vm element in the board 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.
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