STK ch AF Power Amplifier (Split Power Supply) (120W + 120W min, THD = 0.4%)

Transcription

1 Ordering number:enn4898 Thick Film Hybrid IC STK ch AF Power Amplifier (Split Power Supply) (120W + 120W min, THD = 0.4%) Overview A major feature Sanyo thick-film amplifier ICs all ICs within a given product series pin compatible. Th allows users construct a product line amplifiers with differing capacities using same PCB design simply changing hybrid IC used. Sanyo has now developed a new series exps th intraseries pin compatibility also provide compatibility between certain series. Adoption ICs in th new series also allows development both two- three-channel amplifiers on same PCB. Furrmore, th new series supports 3 6 Ω drive hle recent trend ward lower impedance speakers. Features Pin compatibility STK series (three channels/single package) STK series (two channels/single package) Support for load impedances 3 or 6 Ω New pin assignment new pin assignment groups input,, supply systems in separate blocks. Th minimizes charactertic degradation due problems with PCB pattern layout. Minimal number required external components bootstrap resr capacir required in earlier series no longer necessary. Package Dimensions unit:mm (15.95) =38.1 [STK ] SANYO : SIP16 Specifications Maximum Ratings at Ta = 25 C Parameter Symbol Conditions Ratings Maximum supply voltage max ± 74 V rmal restance θ j-c Per transr 1. 0 C/W Junction temperature Operating substrate temperature Srage temperature Tj 150 Tc 125 Tstg Available time for load short-circuit t s = ±51V, RL = 6Ω, f=50hz, P O= 120W 0. 5 s Unit C C C Any all SANYO products described or contained herein do not have specifications can hle applications require extremely high levels reliability, such as life-support systems, aircraft s control systems, or or applications whose failure can be reasonably expected result in serious physical /or material damage. Consult with your SANYO representative nest you before using any SANYO products described or contained herein in such applications. SANYO assumes no responsibility for equipment failures result from using products at values exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges,or or parameters) lted in products specifications any all SANYO products described or contained herein. SANYO Electric Co.,Ltd. Semiconducr Company TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Tai-ku, TOKYO, JAPAN 93099TH (KT)/D2694TH (OT) No /8

2 Operating Charactertics at Ta = 25 C, R L =6Ω, Rg=600Ω, VG=40dB, with a noninductive load (R L ) Parameter Symbol Conditions Q uiescent current I CC O = ±61V ma V Output P C C =±51V, f=20hz 20kHz, O W THD=0.4% V THD1 C C =±51V, f=20hz 20kHz, Total harmonic drtion P O =1.0W 0.4 % THD2 = ±51V, f=1khz, PO= 30W 0.02 % Frequency charactertics f L, fh +0 = ±51V, PO = 1.0W, 3 db 20 50k Hz impedance r i = ±51V, f=1khz, PO= 1.0W 55 kω Output noe voltage V NO = ±61V, Rg=10kΩ 1. 2 mvrms Neutral voltage V N = ±61V mv Note. 1. Use a rated supply for test unless orwe noted. 2. Use specified transformer supply shown in figure measuring available time for load shorted noe voltage. 3. noe voltage peak value measured with an averaging rms scale volt meter (VTVM). A 50 Hz AC stabilized supply should be used eliminate effects fo AC primary line flicker noe an AC supply used. min Ratings typ max Unit Specified Transformer Power Supply (MG-250 equivalent) Internal Equivalent Circuit No /8

3 Sample PCB Pattern used with eir Two- or Three-Channel Amplifiers Copper (Cu) foil surface Pin 1 in STK series corresponds pin 6 in STK series. Sample Application Circuit No /8

4 No /8 tem l n Functio C11 C1, capacirs. coupling noe since noe, reduce can capacirs se value reactance Reducing DC component. block Used low at reactances large a have capacirs se if dependencies restance source signal noe 1/f due exacerbated C11, C1 values increasing reduced be can applied first occurs noe impulse frequencies. C13. C3 NF side values reducing C12 C2, capacirs. filter R11. R1 capacirs se formed filters reduced be can noe b High C13 C3, NF capacirs. frequency. cuff low b determine capacirs increases th since However, capacirs. se value increasing low b up acquired be can gain Voltage required. actually what capacirs se values limit applied, occurs noe impulse C14 C4, capacirs. temperatures. high s large at stability increase capacirs C15 C5, capacirs. recommended. charactertics frequency temperature superlative with capacirs Mylar use C7 C6, capacirs. provide impedance supply lower y pins. supply IC possible as close as capacirs se Insert recommended. capacirs Electrolytic IC operation. stable C9 C8, capacirs. Decoupling applied occurs noe impulse reduce R9 R8 with conjunction in formed circuits constant time line. supply from enter components ripple remove R11 1, R. resrs filter R12 R2, resrs. bias resrs. se determined largely impedance input 0V. pins input bias resrs R13 R3, R14 R4, 560 R13 R3 setting achieved 40dBm, gain A voltage (VG). gain voltage determine resrs hese T Ω d an R4 56k 14 R Ω o t uesd R14 R4 If gain. voltage change used be R13 R3 desirable It recommended., V for R14=R12 R4=R2 set gain, voltage hange c N. stability balance R15 5, R. resrs R16 R6, resrs. follws. as frequency signal on depends resrs se dsipated frequency. signal limit upper f where R17 R7, resrs. Output. high during shorting load restance increase resrs R9 R8, resrs. filter Ripple P he T O e pre-driv resirs values. se changed on at noe impulse rejection, ripple max, resrs. se through flows charged C9 C8 current peak state short load in resrs limit transr values. ir determining consideration requires resrs se in ssipated rfore, L2 L1, coils. stability. circuit increase loads capacitive due shifting phase correct inducrs External Component Descriptions f L = 2π C3 (13) R3 (13) 1 P R6 (16)= R6 (16) 2 1/2π fc5 (15) R6 (16) max / 2

5 Series Configuration 3-channel amplifiers type No. STK STK STK STK STK STK STK STK STK STK STK Rated 2-channel amplifiers type No. 10W 3 STK W 3 STK W 3 STK W 3 STK W 3 STK W 3 STK W 3 STK W 3 STK W 3 STK W 3 STK W 3 STK STK STK STK Note : max1 When R L =6Ω max2 When R L =between 3 6Ω 1 When R L =6Ω 2 When R L =3Ω Rated 10W 2 THD [%] f=20hz 20kHz max1 Power supply voltage [V] max2 1 2 ± 26 ± ±14 15W 2 ± 29 ± 20 ±16 20W 2 ± 34 ± 23 ±19 25W 2 ± 36 ± 25 ±21 30W 2 ± 39 ± 26 ±22 35W 2 ± 41 ± 28 ±23 40W 2 ± 44 ± 30 ± W 2 ± 45 ± 31 ±25 50W 2 ± 47 ± 32 ±26 60W 2 ± 51 ± 35 ±27 70W 2 ± ± 38 80W 2 ± ± W 2 ± ± W 2 ± ± 51 End Product Series Design Example Using Same PCB No /8

6 External Circuit Diagram Note : 1. Not required one STK through STK used. 2. Must be shorted one STK through STK used. rmal Design Example rmal restance θc-a required heat sink for a tal case-internal dsipation Pd for STK can be derived as follows : Condition 1 : IC case temperature Tc must not exceed 125 C. Pd θc-a+ta<125 C... (1) Ta : Set guaranteed ambient temperature Condition 2 : individual transr junction temperatures must not exceed 150 C. Pd θc-a+pd/n θj-c+ta<150 C... (2) N : Nunber transrs θj-c : rmal restance per transr Note : 1. Not required one STK through STK used. 2. Must be shorted one STK through STK used. However, dsipated transrs (Pd) divided evenly among N transrs. Solving equations (1) (2) for θc-a gives : θc-a< (125 Ta)/Pd... (1) θc-a< (150 Ta)/Pd θj-c/n... (2) A value satfies se two equations will be required heat sink rmal restance. required heat sink rmal restance can be derived from formulas (1) (2) once following specifications have been determined. Power supply voltage : Load restance : R L Guaranteed ambient temperature : Ta When STK ±51V R L 6Ω, case-internal tal dsipation for a continuous sine wave signal will have a maximum value 177W, as shown in Figure 1. One tenth P O max for th kind continuous signal generally used as an estimate dsipation for actual music signals, although th may vary somewhat depending on safety stards. Pd=107W (When 1/10 P O max 12W) No /8

7 STK has four transrs rmal restance per transr 1.0 C/W. If guaranteed ambient temperature Ta 50 C n required heat sink rmal restance can be calculated as follows. From formula (1) : θc-a < (125 50)/107 < 0.70 From formula (2) : θc-a < (150 50)/ /4 < 0.68 refore value 0.68C/W, which satfies both se formulas, required heat sink rmal restance. Note th rmal design example assumes a rated supply actual rmal design must be confirmed in end product itself. No /8

8 Specifications any all SANYO products described or contained herein stipulate performance, charactertics, functions described products in independent state, not guarantees performance, charactertics, functions described products as mounted in cusmer's products or equipment. To verify sympms states cannot be evaluated in an independent device, cusmer should always evaluate test devices mounted in cusmer's products or equipment. SANYO Electric Co., Ltd. strives supply high-quality high-reliability products. However, any all semiconducr products fail with some probability. It possible se probabiltic failures could give re accidents or events could endanger human lives, could give re smoke or fire, or could cause damage or property. When designing equipment, adopt safety measures so se kinds accidents or events cannot occur. Such measures include but not limited protective circuits error circuits for safe design, redundant design, structural design. In event any or all SANYO products(including technical data,services) described or contained herein controlled under any applicable local export control laws regulations, such products must not be exported without obtaining export license from authorities concerned in accordance with above law. No part th publication may be reproduced or transmitted in any form or any means, electronic or mechanical, including phocopying recording, or any information srage or retrieval system, or orwe, without prior written permsion SANYO Electric Co., Ltd. Any all information described or contained herein subject change without notice due product/technology improvement, etc. When designing equipment, refer "Delivery Specification" for SANYO product you intend use. Information (including circuit diagrams circuit parameters) herein for example only ; it not guaranteed for volume production. SANYO believes information herein accurate reliable, but no guarantees made or implied regarding its use or any infringements intellectual property rights or or rights third parties. Th catalog provides information as September, Specifications information herein subject change without notice. PS No /8