TA7368 TOSHIBA | Alldatasheet
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TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC TA7368P, TA7368F AUDIO POWER AMPLIFIER The TA7368P and TA7368F are suitable for the audio TA7368P power amplifier of portable cassette tape recorder and ——_ radio. wn FEATURES oT" l \\ @ Very few external parts (Only three capacitors) \\| } uv“ © Low quiescent current : Iccq=6.6mA (Typ.) (Vcc = 6V) SIP9-P-2.54A @ Output Power TA7368F TA7368P : Pout =720mW (Typ.) (Vcc = 6V, RL =4, THD = 10%) TA7368P /F g 1 P, =450mW (Typ.) (Vcc =6V, RL =80, THD = 10% y out=' (Typ.) (Vee L 6) SN Seats @ Voltage gain : Gy =40dB (Typ.) rT bY © Operating supply voltage range : Vcc=2~10V (Ta=25°C) ‘SSOP10-P-225-1.00 Weight SIP9-P-2.54A : 0.92g (Typ.) BLOCK DIAGRAM SSOP10-P-225-1.00 : 0.09g (Typ.) (5) RIPPLE (2) Ovee Vin © (118) FILTER uae : 1 bd Ce) NF PHASE PRE-GND | PW-GND- 2610016802 malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to observe standards of safety, and to avoid situations in which a malfunction or failure of a TOSHIBA product could cause loss of human life, bodily injury or damage to property. In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the most recent products specifications. Also, please keep in mind the precautions and conditions set forth in the TOSHIBA Semiconductor Reliability Handbook 1997-07-07 1/10
PRECAUTION FOR USE AND APPLICATION 1. Input stage On The input stage of power amplifier (Equivalent circuit) is comprised of a PNP differential pair (Q2 and Q3) preceded by a (2:2) PNP emitter follower (Q4) which allows DC referencing of the ® source signal to ground. This eliminated the need for an input FROM PIN 7/10 coupling capacitor. However, in case the brush noise of volume Rs becomes a problem, provide serially a coupling capacitor to the input side. (9) te] [Bo 2. Adjustment of voltage gain Ge) (is) The voltage gain is fixed at Gy=40dB by the resistors (Rq and Fig.1 Rs) in IC, however, its reduction is possible through adding R¢ as WW shown in Figure 2. In this case, the voltage gain is obtained by Vin © (118) the following equation. nF CY Rr > R5+Rq+R Gy =20f0g 3 M44 F . (8) Bays _| Ra + Re : 70k It is recommended to use this IC with the voltage gain of - Gy =28aB or over. Fig.2 RIPPLE 3. Ripple rejection ratio + CRIP Adding Crip, to ripple terminal 2 as shown in Figure 3, the ripple rejection ratio is improved from -25dB Typ. to -45dB Fig.3 Typ. 4. Power dissipation Care should be taken to use this IC below maximum power dissipation. Because it may over maximum rating depending on operating condition. @ TA7368P = Pp = 900mW (Ta =25°C) @ TA7368F Pp =400mW (Ta = 25°C) 5. Phase-compensation Small temperature coefficient and excellent frequency characteristic is needed by capacitors below. © Oscillation preventing capacitors for power amplifier output @ Bypass capacitor for ripple filter © Capacitor between Vcc and GND 961001EBA2" & The products described in this document are subject to foreign exchange and foreign trade control laws The Information contained herein is presented only as a guide for the applications, of our products. No. responsibilty is assumed by, TOSHIBA CORPORATION for any infringements of intellectual property or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any intellectual property or other rights of TOSHIBA CORPORATION or others @ The information contained herein is subject to change without notice 1997-07-07 2/10
MAXIMUM RATINGS (Ta = 25°C) CHARACTERISTIC SYMBOL RATING UNIT Supply voltage [vee [| | v_ power Dissipation | 1A7368P_| 5 (note) -_ 20 _] aw owen ou [a0] Operating Temperature = 25~75 Storage Temperature -55~150 (Note) Derated above Ta=25°C in the proportion of 7.2mW/°C for TA7368P and of 3.2mW/ °C for TA7368F. ELECTRICAL CHARACTERISTICS FOR TA7368P (Unless otherwise specified, Vcc =6V, f= 1kHz, Rg = 6000, RL =40, Ta =25°C) TEST CHARACTERISTIC SYMBOL TEST CONDITION wn. |v. | ax UNIT CUIT Vee=3V, Vin=0 L—ssl— | Quiescent Current Iccq Vec =6V, Vin=0 [ — | 66] 15 | Vec=9V, Vin=0 D— [75 | 78 | Output Power Pout Vcc =6V, RL=8, THD=10% | 300 | 450/ — | mw Total Harmonic = 9 Voltage Gain [Sy [ = [Vin=05mVims La | | 3 | oe | Output Noise Voltage [| Vno | — [Rg=10k, BPF=20Hz~20kHz | — | 0.2] 0.5 |mVrms| ; a : fr = 100Hz, Vp =0.3Vrms Ripple Rejection Ratio |e | | Without Crip 25 linput Resistance | Rw [-] Ss => «+ - | wp — | eo | TERMINAL VOLTAGE FOR TA7368P Typical terminal voltage at no signal with test circuit. (Vcc =6V, Ta=25°C) [Unit : V] [Terminal No. [| 1 OT 2 oT 3 of 4 fT 5 hf 6 Tv? fT 8 hf 8 DC Voltage (V) | o | 240 | 062 [o64 | o [ o | 261 | nc [| 60 | 1997-07-07 3/10
ELECTRICAL CHARACTERISTICS FOR TA7368F (Unless otherwise specified, Vcc = 6V, f= 1kHz, Rg = 6000, Ri =80, Ta =25°C) TEST CHARACTERISTIC SYMBOL TEST CONDITION jm. | ve. max UNIT CUIT Vec=3V, Vin=0 p= ss — Quiescent Current Iecq Vec=6V, Vin=0 [| — [| 66 | 15 | ma Vee=8V, Vin=0 b= pas [oe | Output Power Pout Vcc =6V, RL=80, THD=10% | 300 | 450 | — | mw Total Harmonic = y Voltage Gain [ey = Win 05 Vs aa as ae Output Noise Voltage | Vno | — |Rg= 10k, BPF=20Hz~20kHz [| — | 0.2 | 0.5 |mVrms| ; a : fp = 100Hz, Vp =0.3Vrms, Ripple Rejection Ratio | ee | | Without Crip linput Resistance | Ry t=] > ~+ - | wf — [eo | TERMINAL VOLTAGE FOR TA7368F Typical terminal voltage at no signal with test circuit. (Vcc = 6V, Ta = 25°C) [Unit : V] DC Voltage (V) [ ne J 60 | nc [To | 240 [062 | 06a o Jo | 267 | 1997-07-07 4/10
GRPPLE © |. FILTER vino—O > arp wae @ © ® © a [Nr PHASE PRE-GND | PW-GND & |+ ot
3 Pin® : Non-connection
GyHPPLE eo |. FILTER vwo—@ > 470 pF wae © @ @ > = [Ne PHASE PRE-GND | PW-GND SF, % Pin®, @ : Non-connection 1997-07-07 5/10
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2 -af MST ean mo | PT eee Try] 3 Bf teem wre a | Se oe EEL tt, sg sof TT ay 600 cap nye Ht 38 SS SSS SESE es 2 mal 2) Se Se TT vec=ev BS Oy S Es sri rr) vec 22 fo een 8 Sn #3 00} eet Bg cc 53 Pave: THO=10K § Cnn er =25 22 in 3 “ison a3 1 38 THO Roueettonw | 8 RIPPLE FREQUENCY f, (kHz) 00120 0 20 40 60 30 AMBIENT TEMPERATURE Ta (°C) tcc, V7 — Nec PD - Pouti(t) s {COOL oo Bee g LLETET ETT Tg “TTT PELL S PP 2 Fyrrpereeeye f™ ea og Tan2sc E jee ee “EET TT TTT o§ ft tier 2 [TP ITLL
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ee DECC ere | Ce | Be an 8 jf eee fe Lett tt © ee LETT TT TTT TTT yy gg Ceri rr) Coe eee 0 02 04 06 08 1.0 12 14 SUPPLY VOLTAGE Voc (W) OUTPUT POWER Pout (W) Pp - Pout (2) Pp MAX - Vcc Jo ee 2 oe AO . CO gem Cee e sCOPEESEH SA = z 16 ped tine Lt tet TH B EE Py gL] Lepr see | to | | LITT TIAI YT ey | eee g | ae 2 LNA a Peper ae @ Do YA ae to Pitty itty ety ye 2 Ll Aer pitit iti tit tt | | 2 -LeerrTi i tt 0 02 04 06 08 1.0 1.2 14 0 2 4 6 8 10 12 14 OUTPUT POWER Pout (W) SUPPLY VOLATAGE Vcc (V) 4997-07-07. 7/10
1.21 LTT TT TTT TTY we esece eo ET gy ye aorerw * F+PCB = Ae , a 2 od | RY ery ET ET Tye By being mounted on certain PCB’s, z LITT NET flat packages increase the heat g otter ttt itt dissipating efficiency. Fa = a > Ni Data shown on the left is resulted 2 ott neh NEE Dota sh sulted g ae PAN EN EET rom the measurement on the 6 of) | | ANARKN TT recommended by Toshiba. [itty Ty PRSSA (6j-T : Thermal resi ~N j-T : Thermal resistance) (eee NE AMBIENT TEMPERATURE Ta (°C) Printed circuit board 2 2 2 (>. 5 Material : Phenol resin i 5 (=) ® Thicki f leaf: . ill ickness of copper leaf: 354m a in Plate thickness : 1.6mm 2 ji! 5 ‘| TA7368F 2 fo) ‘« fC) 6047.5 (mm) 1997-07-07 8/10
SIP9-P-2.54A Unit : mm 3.240.2 Lod | x [sid E “| 2 yl gi 0.98TYP. 05101 pay 0.25845 1.240.1 22.78MAX oo [cme eae ee ea eee 1 9 Weight : 0.92g (Typ.) 1997-07-07 9/10
SSOP10-P-225-1.00 Unit : mm 10 6 HHHHH 2 ony Aye q re tl oo Nu ji HHH > O.6TYP 440.1 5.7MAX 5.2+0.2 a x 3 aT & a eP s 0.52540.2 Weight : 0.09g (Typ.) see 97-07-07 10/10