multifunctional voltage regulator for tvs and vcrs with bs tuner applications . audiovisual equipment, vcrs and tvs with bs tuner features . low-saturation regulator (on/off function built in) . control amplifier built in. . current limit and thermal limit circuits built in . reverse current prevention provided (v o 1) package dimensions unit : mm 3107-sip13h [LA5612] 0.4 0.5 3.4 1.15 25.6 10.0 2.4 2.0 1.2 2.0 0.8 1 13 1.0min 4.5 15.4max 11.8 11.2 13.9 sanyo : sip13h specfications maximum ratings atta=25 c parameter symbol conditions ratings unit maximum input voltage v in 1 max 22 v v in 2 max v in 1 ^ v in 2v in 1 allowable power dissipation pd max no heat sink 2 w thermal resistance between junction and case q j-c 4.7 c/w operating temperature topr 20 to +80 c storage temperature tstg 40 to +150 c ordering number: en 5197 monolithic linear ic LA5612 any and all sanyo products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft? control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. consult with your sanyo representative nearest you before using any sanyo products described or contained herein in such applications. sanyo 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 sanyo products described or contained herein. sanyo electric co.,ltd. semiconductor company tokyo office tokyo bldg., 1-10, 1 chome, ueno, taito-ku, tokyo, 110-8534 japan 92895ha (ii) no.5197-1/5
operating conditions atta=25 c parameter symbol conditions ratings unit input voltage v in 1 11.5 to 20 v v in 2 6.2 to 20 v output current 1 i o 1 10 to 360 ma output current 2 i o 2 10 to 420 ma output current 3 i o 3 10 to 420 ma operating characteristics atta=25 c, see specified test circuit. parameter symbol conditions min typ max unit [no-load mode] when v o 1, v o 2, v o 3ison:v en 1=3v,v en 2=3v,v in 1 = 16.5 v, v in 2 = 6.6 v, i o 1toi o 3=0ma quiescent current i in 1 714ma i in 2 816ma [regulator 1] when v o 1, v o 2, v o 3ison:v en 1=3v,v en 2=3v,v in 1 = 16.5 v, v in 2 = 6.6 v, i o 1 = 300 ma output voltage 1 v o 1 13.7 14.5 15.2 v dropout voltage v drop 1 0.5 1.0 v line regulation n v oln 1 16.5 v % v in 1 % 20.5 v 140 mv load regulation n v old 1 10ma % i o 1 % 300 ma 150 mv output inflow current i o 1 in 22 v applied to pin v o 1, no-load mode 500 a peak output current i op 1 360 ma output short-circuit current i osc 1 45 180 ma ripple rejection rrej1 50 db output low-level voltage v o 1 off v en 1=1v, when v o 1isoff 0.2 v output voltage/temperature coefficient n v o 1/ n ta 0.5 mv/ c [regulator 2] when v o 1, v o 2, v o 3ison:v en 1=3v,v en 2=3v,v in 1 = 16.5 v, v in 2 = 6.6 v, i o 2 = 350 ma output voltage 2 v o 2 4.80 5.05 5.30 v dropout voltage v drop 2 0.5 1.0 v line regulation n v oln 26v % v in 2 % 7.2 v 20 mv load regulation n v old 2 100 ma % i o 2 % 350 ma 100 mv peak output current i op 2 420 ma output short-circuit current i osc 2 65 210 ma ripple rejection rrej2 50 db output low-level voltage v o 2 off v en 2=1v, when v o 2isoff 0.2 v output voltage/temperature coefficient n v o 2/ n ta 0.5 mv/ c [regulator 3] when v o 1, v o 2, v o 3ison:v en 1=3v,v en 2=3v,v in 1 = 16.5 v, v in 2 = 6.6 v, i o 3 = 350 ma output voltage 3 v o 3 4.80 5.05 5.30 v dropout voltage v drop 3 0.5 1.0 v line regulation n v oln 36v % v in 2 % 7.2 v 20 mv load regulation n v old 3 100 ma % i o 3 % 350 ma 100 mv peak output current i op 3 420 ma output short-circuit current i osc 3 65 210 ma ripple rejection rrej3 50 db output low-level voltage v o 3 off v en 2=1v, when v o 3isoff 0.2 v output voltage/temperature coefficient n v o 3/ n ta 0.5 mv/ c [output on/off control] v in 1 = 16.5 v, v in 2 = 6.6 v output on control voltage v en 1h v o 1: on, v en 1<22v 3.0 v in 1v v en 2h v o 2, v o 3: on, v en 2<22v output off control voltage v en 1l v o 1: off 1.0 v v en 2l v o 2, v o 3: off [amplifier a] when v o 1, v o 2, v o 3ison:v en 1=3v,v en 2=3v,v in 1 = 16.5 v, v in 2 = 6.6 v input offset voltage v ioa 7mv input bias current i ba 250 na output current (source) i oa source v ina + =1v,v ina = 0 v 10 ma output current (sink) i oa sink v ina + =0v,v ina = 1 v 10 ma [amplifier b] when v o 1, v o 2, v o 3ison:v en 1=3v,v en 2=3v,v in 1 = 16.5 v, v in 2 = 6.6 v output current (source) i ob source 10 ma LA5612 no.5197-2/5
note 1: the tightening torque referred to in the above figure is a condition specified for the heat dissipation characteristics and not a working condition to be met when mounting the heat sink. test circuit or its equivalent pin functions no. symbol function 1v in 1 high voltage input. 2v o 1 14.5 v/300 ma regulator, with reverse current prevention. 3 en1 regulator 1 on/off control. high active. 4v ina (+) amplifier a noninverting input. 5v ina () amplifier a inverting input. 6v oa amplifier a output. 7 gnd substrate of the LA5612 (minimum potential). 8v ob amplifier b output (5 v regulator supported by external npn transistor). 9v inb () amplifier b inverting input (5 v regulator supported by external npn transistor). 10 en2 regulator 2 and regulator 3 on/off control. high active. 11 v o 3 5.05 v/350 ma regulator. 12 v o 2 5.05 v/350 ma regulator. 13 v in 2 low-voltage input. aluminum heat sink mounting conditions tightening torque: 4 kg . cm note 1 with plain washer and silicone grease applied infinite heat sink allowable power dissipation, pd max e w ambient temperature, ta e c no heat sink pd max e ta LA5612 no.5197-3/5
function table ( v : built in, : not built in) circuit block function v o 1v o 2v o 3 amp a amp b input line v in 1v in 2v in 2v in 1v in 1 current limit vvv thermal limit vvv on/off control en1 en2 en2 usage notes (1) apply voltage to the voltage input pins on condition that v in 1 ^ v in 2. (2) apply voltage simultaneously to v in 1 and v in 2. do not use the LA5612 with voltage applied to only one of these pins. (3) since the amplifiers do not have current limit protection such as an external npn transistor, provide this protection in each application. logic table conditions : when v in 1 ^ v in 2 (at v in 1 ^ 4v,v in 2 ^ 4v) en1,en2 v o 1, v o 2, v o 3 l or open l hh (1) ``h'' for en denotes high level; ``l'' denotes low level or open. (2) ``h'' for v o denotes output on voltage; ``l'' denotes output off voltage. (3) each output voltage corresponds to each en and is controlled independently. (en1 is coupled with v o 1, and en2 with v o 2 and v o 3.) thermal design notes (1) in the LA5612, the junction temperature (tj) at which thermal shutdown is activated is approximately equal to 130c. (2) consequently, the operating range of reg1, reg2 and reg3 with the thermal shutdown function is restricted by the thermal shutdown characteristics (typical value) shown in the figure below. (3) the thermal shutdown characteristics vary 20c or so. since thermal shutdown is liable to occur with inadequate heat dissipation, sufficient consideration must be given to the heat dissipation design. thermal shutdown characteristics typical characteristics allowable power dissipation, pd e w ambient temperature, ta e c LA5612 no.5197-4/5
equivalent circuit block diagram and sample application circuit application notes (1) the input line for amp a and amp b is shared with v in 1. (2) amp a and amp b are on in normal use. (3) the output voltage is 5 v when an external npn transistor has been added. (4) depending on the type, load current and connection position (distance from the LA5612) of the external npn transistor, the value of a capacitor connected between emitter and ground must be changed for stable operation. (5) the capacitors connected between each pin and gnd are bypass capacitors for preventing oscillation: as such, they must be positioned as close to the LA5612 as possible in order to stabilize operation. start-up thermal shutdown detection reverse current prevention 5 v output external tr LA5612 ps no.5197-5/5 specifications?of?any?and?all?sanyo?products?described?or?contained?herein?stipulate?the?performance,? characteristics,?and?functions?of?the?described?products?in?the?independent?state,?and?are?not?guarantees of?the?performance,?characteristics,?and?functions?of?the?described?products?as?mounted?in?the?customer?s products?or?equipment.?to?verify?symptoms?and?states?that?cannot?be?evaluated?in?an?independent?device,? the?customer?should?always?evaluate?and?test?devices?mounted?in?the?customer?s?products?or?equipment. sanyo?electric?co.,?ltd.?strives?to?supply?high-quality?high-reliability?products.?however,?any?and?all semiconductor?products?fail?with?some?probability.?it?is?possible?that?these?probabilistic?failures?could? give?rise?to?accidents?or?events?that?could?endanger?human?lives,?that?could?give?rise?to?smoke?or?fire, or?that?could?cause?damage?to?other?property.?when?designing?equipment,?adopt?safety?measures?so that?these?kinds?of?accidents?or?events?cannot?occur.?such?measures?include?but?are?not?limited?to?protective circuits?and?error?prevention?circuits?for?safe?design,?redundant?design,?and?structural?design. in?the?event?that?any?or?all?sanyo?products(including?technical?data,services)?described?or? contained?herein?are?controlled?under?any?of?applicable?local?export?control?laws?and?regulations, such?products?must?not?be?exported?without?obtaining?the?export?license?from?the?authorities concerned?in?accordance?with?the?above?law. no?part?of?this?publication?may?be?reproduced?or?transmitted?in?any?form?or?by?any?means,?electronic?or mechanical,?including?photocopying?and?recording,?or?any?information?storage?or?retrieval?system, or?otherwise,?without?the?prior?written?permission?of?sanyo?electric?co. ?,?ltd.? any?and?all?information?described?or?contained?herein?are?subject?to?change?without?notice?due?to product/technology?improvement,?etc.?when?designing?equipment,?refer?to?the??delivery?specification? for?the?sanyo?product?that?you?intend?to?use. information?(including?circuit?diagrams?and?circuit?parameters)?herein?is?for?example?only?;?it?is?not guaranteed?for?volume?production.?sanyo?believes?information?herein?is?accurate?and?reliable,?but no?guarantees?are?made?or?implied?regarding?its?use?or?any?infringements?of?intellectual?property?rights or?other?rights?of?third?parties. this catalog provides information as of september, 1995. specifications and information herein are subject to change without notice.
|
