TBA641 FAIRCHILD | Alldatasheet
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FAIRCHILD LINEAR INTEGRATED CIRCUIT GENERAL DESCRIPTION - The TBAGA1 is a monolithic integrated circuit designed for use as at audio power amplifier in portable radio receivers, tape recorders, record players and in industrial CONNECTION OU NGRAM Soplications which require high output power, low distortion and high reliability performance. oe ven) Special features of the circuit include low quiescent current, self-centering bias operation at supply PACKAGE OUTLINE os | vottages ranging from 6 V to 12V (16 V on TBAGA1 B11) and direct coupling of the input. The PACKAGE CODE {| AIQet1/ Circuit requires 2 minimum of external components. It is constructed on a single silicon chip using the Fairchild Planar process ‘© OUTPUT POWER 2.2 W\\9 V ~ 4 11) ~ TBAGAT AIZ 1 16 © OUTPUT POWER\\S.S W 14 V — 4 $1) — TBAGA1 B11 on au * LOW DISTORTION_/ ne ne ‘© LOW QUIESCENT CURRENT zl t . © SELF-CENTERING BIAS owl fj] poarsr aw HIGH INPUT IMPEDANCE ne Ne 3 fa ono ier BY ASS ABSOLUTE MAXIMUM RATINGS TBAGAI AIZ TBAG41 B11 a 3 Supply Voltage (no signa!) wav 1BV con ne Supply Voltage wv 16v of $y recosacx Input Voltage 05 Vt0 V+ 05 V t0 V+ Peak Output Current 2A 2.5 Storage Temperature 40°C to +150°C 40'C to +150°C Power Dissipation (Ta < 25°C) 15W 23W Power Dissipation (Ta = 70°C) 1.45 W Power Dissipation (T¢ = 70°C) ew R MATION Max. Junction Temperature 150°C 150°C ORDER INFORMATIO' TYPE PART NO. THERMAL DATA (Typical) TBAGAI AIZ TBAGA1 B11 TBAG41 A TBAGATAIZ 94.¢ (thermal resistance junction to case) 13°C/W 13°cw TBAG416 = ,TBAG41B11 @-A (thermal resistance junction to ambient) 83'ciw 55°CW EQUIVALENT CIRCUIT voce BvP88S 6 Seoorsreae [3 * ite] reroenceé WA Zo ] coMPeNsaTION® fi, me [ “on “Planar is @ patented Fairchild process. 4-200
FAIRCHILD » TBAGA1 TBA641 B11 ELECTRICAL CHARACTERISTICS: V+ = 14 V, Ry = 4 £2, Ta 425°C uniess otherwise specified. (See Test Circuit) CHARACTERISTICS [___conoirions Tain [tye [wax] units Tat Be oro Tin [ — OE Osi Cee PT A Waa Gan a a aoa Tap Nie Ve |g = een, BW TOK ng a Tore Supt Curent [Pours 88m es > Internal Feedback Resistors [RG [Ok tev eeviaeneent) | FR ft ep | TBA641 A12 ELECTRICAL CHARACTERISTICS V+=9V, Ry) =4 2, Ta = 25°C unless otherwise specified. (See ‘Test Circuit) iL A CHARACTERISTICS ‘CONDITIONS: es UNITS Total Supply Current ptourso || | te Tot Bar Corent in [0 DG Our Lee rT ee TS CS ee Voltage Gain [Reso es ab one [tho = 10m = rete ay=asas | ef [Pours Ww f= THe Ay=sea [| aa J 5 cua pat Not VaTaOE | Rg= 22kn, ewe TORE ae Tova Suply Curent [Pour = 228g tee saute erent) [ag [ 2] —} Tat in NT A TYPICAL PERFORMANCE CURVES FOR TBA641 B11 OUTPUT POWER DISTORTION AS A. VOLTAGE GAIN AS A FUNCTION OF FUNCTION OF AS A FUNCTION OF ‘SUPPLY VOLTAGE OUTPUT POWER FEEDBACK RESISTANCE (Ry) ‘Cee LA ra TA aaa “ao Sear oSssaseaessa==s| Ae eo cs Hrs Hee ie TET Ds eH z Et a ti} tif prseeeesecee MMe Dest Soci Mmeeanniitiinin Poe A ah PDNUE TTT ge g 2 RBS NSS SSa 5s: 22) cee | Eee te aS wats vn ! Ca e evil a | Ey Re ; oo EH 2 CLT 4-201
FAIRCHILD ¢ TBAG41 TYPICAL PERFORMANCE CURVES FOR TBA641 B11 (Cont'd) POWER DISSIPATION Cy AS A FUNCTION OF OUTPUT POWER AND EFFICIENCY Ry FOR VARIOUS AS A FUNCTION OF AS A FUNCTION OF VALUES OF BANDWIDTH INPUT VOLTAGE OUTPUT POWER: ‘ FA TOLLE bee tte Hr, EE CoCr CSS preter}: |: i pesto $ vv 3 | es on FBisezedstansece :| / te Do Deere Tr: 3 a aapezaa aaaAnan PeCeeer ye i (oes. PTE AR i 7 FAH Peep Ae LLL Lit) (EEE Bree, ‘SUPPLY CURRENT MAXIMUM POWER DISSIPATION AS A FUNCTION OF AS A FUNCTION OF OUTPUT POWER: SUPPLY VOLTAGE POWER RATING CHART “TT pz ‘ ‘To «LPP Z| 2 5 Rae WHA AC sere, PN oe 4s stoi rope se PT ATT POT Ty 3 CEASA RATT TT 2 LL La |_| i Crewe |) 1 PT e"1V TI 4nnn) oa ~een sees : 4 i | Poe fA Popes PPA Y iT Trert yr ore ‘ [ri pi A CLE T rir rr) LOTT rr QUIESCENT SUPPLY CURRENT (QUIESCENT SUPPLY CURRENT QUIESCENT OUTPUT VOLTAGE AS A FUNCTION OF ‘AS A FUNCTION OF ‘AS A FUNCTION OF SUPPLY VOLTAGE AMBIENT TEMPERATURE AMBIENT TEMPERATURE TH “TE “TTT I Lo i“ Heide eeeeens =: oe Poe Fer. A e7aue fees te Chocesces ee ee ey Ae 3° aoe} E.BREE Ea iA ao POAT Zz - ee EE Meat REE LH Col EEE EY dl QUIESCENT OUTPUT VOLTAGE AS A FUNCTION OF ‘SUPPLY VOLTAGE ‘cE ieseeaeer 4 FH 5. vane CHOTA LIT ATI TO SoOoOwAET TH eeaisiail fs [| as ! Pepe] 4-202
FAIRCHILD ¢ TBAG41 TYPICAL PERFORMANCE CURVES FOR TBA641 A12 OUTPUT POWER: DISTORTION AS A VOLTAGE GAIN AS A FUNCTION OF FUNCTION OF AS A FUNCTION OF SUPPLY VOLTAGE OUTPUT POWER sooo FEEDBACK RESISTANCE (Rf) Le A ; SEER EEE Herter SUSE] COCOA z | M ak HI rT th | Peo Cor NT eA : +H | fot foal bj ssuusas<sescstegess SD aeaeecaeeen bam HH g eM ccecececsues=sceasn: Paap eaGnnnen ce a KisnatSAAA GOTH “Tet , ELLE A “| DANDEAANIREROGAGAEHI ee te CTT Ch AS A FUNCTION OF OUTPUT POWER: POWER DISSIPATION AND Re FOR VARIOUS ‘AS A FUNCTION OF EFFICIENCY AS A FUNCTION VALUES OF BANDWIDTH INPUT VOLTAGE OF OUTPUT POWER “OT 4 " " OO ey Peper ae LLL eT im 5; le a ssramnnes => ——enas| 7 SS0eeeeeen| aM 4 pe scsossccalcsccs: Me) ce eeeeneeapece’ see sr 2a - pe See i 4 oT 12 Sees eeeees ee ae T es g LT rH : 7 i 2 4 be Ff ober ep oy ia I snes 557 2eenenuan| oll bo ae rr SUPPLY CURRENT MAXIMUM POWER DISSIPATION oerron AS A FUNCTION OF AS A FUNCTION OF OUTPUT POWER: oe SUPPLY VOLTAGE ae POWER RATING CHART foe ay eres H . ER rr tel Prep » Bees EH : FP Micereecoctts Ms Mretsiepe Tats EG Ceane, Teas Fal] TA i A Po x SCO CAT eres HH sa CELE i Z0 ry patooetrs: “OA Cet H * PEEP a P wot FEF, a7 eee See Se Seeeee oe
4 PAH HOOT rr) CITT TTT ry ry
QUIESCENT SUPPLY CURRENT QUIESCENT SUPPLY CURRENT AS A FUNCTION OF AS A FUNCTION OF SUPPLY VOLTAGE AMBIENT TEMPERATURE raga = | PEEP ies! SETI FEE EE EY Hetty 4-203
FAIRCHILD © TBAG41 TYPICAL PERFORMANCE CURVES FOR TBA6G41 A12 (Cont'd) QUIESCENT OUTPUT VOLTAGE QUIESCENT OUTPUT VOLTAGE ‘ASA FUNCTION OF ASA FUNCTION OF AMBIENT TEMPERATURE SupeLy VOLTAGE * LI “TTT TTT [TA HEH “ETE “TH eenneee ee . * 4 Ts Loc cH eo 3 eee pA HH eee? 4eemnee i 5 | | Pere eH HH ace Sees Aer wll 1 PTT Ty) 7, a TEST AND APPLICATION CIRCUIT — TBA641 INPUT 4 ~ rao 1000 uF Le coe a AM CAR RADIO APPLICATION TBA641 B11 CSS ” 4 Vang “LE fie 1 | I, 4 if th i aie i ter! F | Ls | “T ° | “Lee SD SRR OE { “ +4 £4 4434 . iG ELECTRICAL PERFORMANCE Sutput power (THD = 10%) usw Camaetartacny tan 30.36) ony Satara Inout waa Bec aime Svour= 1008) aod 4-204
FAIRCHILD ¢ TBA641 MOUNTING INSTRUCTIONS ~ TBA641 B11 Power dissipation can be increasedby means of an additional external heat sink fixed with two screws or by soldering the pins of the external bar to suitable copper areas on the PC board (TBA641 B11). A. In the former case, the thermal resistance case-ambient of the added heat sink can be calculated as follows: (Tymax) — Ta) ~ (Pp) (8 y.0) cA Pp where TJIMAX) = Max junction temperature Ta = Ambient temperature Pp = Power dissipation 44.¢ = Thermal resistance junction to case 8. If copper areas on the PC board are used (TBAG41 B11) the diagrams below give the maximum power dissipation as a function of copper ‘area, with copper thickness 35 4 and ambient temperature 55°C [~ . Here , bid (COPPER AREA 35 x THICKNESS OMEN LENGTH) - om 4-205