TDA7263M

TDA7263M ® 12 +12W STEREO AMPLIFIER WITH MUTING WIDE SUPPLY VOLTAGE RANGE HIGH OUTPUT POWER 12+12W @ VS=28V, RL = 8Ω, THD=10% MUTE FACILITY (POP FREE) WITH LOW CONSUMPTION AC SHORT CIRCUIT PROTECTION THERMAL OVERLOAD PROTECTION DESCRIPTION The TDA7263M is class AB dual audio power amplifier assembled in the Multiwatt package, specially designed for high quality sound application as HI-FI music centers and stereo TV sets. Multiwatt11 c u d ORDERING NUMBER:TDA7263M e t le APPLICATION CIRCUIT ) s ( ct ) s t( o r P o s b O - u d o r P e t e l o s b O September 2003 1/7 TDA7263M ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit 35 V VS Supply Voltage without load IO Ptot Output Peak Current (repetitive f >20Hz) 2 A Total Power Dissipation (Tcase = 70°C) 30 W 0 to 70 °C -40 to 150 °C Top Tstg,Tj Operating Temperature Range Storage & Junction Temperature PIN CONNECTION (Top view) c u d e t le Figure 1: Block Diagram u d o ) s ( ct r P e t e l o s b O 2/7 o s b O - o r P ) s t( TDA7263M THERMAL DATA Symbol Rth j-case Parameter Thermal resistance junction to case Max Value Unit 2.5 °C/W ELECTRICAL CHARACTERISTICS (Refer to the stereo test and application circuit, VS = 28V; RL = 8Ω; Gv = 30dB; f = 1KHz; Tamb = 25°C unless otherwise specified.) Symbol Parameter Test Condition Min. VS Supply Voltage VO Iq Quiescent Output Voltage Total Quiescent Current PO Output Power (RMS) d = 10% d = 1% Total Harmonic Distortion PO = 1W, f = 1kHz f = 100Hz to 10KHz; PO = 0.1 to 8W CT Cross Talk RS = 10KΩ; f = 1KHz RI Input Resistance fL Low Frequency Roll-off (-3dB) fH eN High Frequency Roll-off (-3dB) Total Input Noise Voltage d Typ. 10 13.5 70 Tamb = 85°C 10 60 80 1.5 VTMUTE Mute Threshold VTPLAY ATTAM Play Threshold IqMUTE Quiescent Current @ Mute Mute Attenuation ) s ( ct o s b O - 45 1 70 3 ) s t( dB KΩ uc d o r P e let RS = 10KΩ; f = 100Hz; Vr = 0.5V % dB 200 A Curve; RS = 10KΩ MUTE FUNCTION V mA 0.2 0.5 40 Thermal Shutdown Junction Temperature 95 70 f = 22Hz to 22KHz; RS = 10KΩ Tj V W W 0.02 100 Supply Voltage Rejection (each channel) Unit 30 12 9.5 RS = 10KΩ; f = 10KHz SVR Max. 10 Hz KHz mV µV 60 dB 145 °C 1.6 V 4.5 V 100 7 dB 10 mA u d o TYPICAL CHARACTERISTICS (referred to the typical Application Circuit, VS = 28V, RL = 8Ω, unless otherwise specified) r P e t e l o Figure 1: Output Power vs. Supply Voltage Figure 2: Distortion vs. Output Power s b O 3/7 TDA7263M Figure 3: Quiescent Current vs. Supply Voltage Figure 4: Supply Voltage Rejection vs. Frequency c u d Figure 6: Output Attenuation & Quiescent Current vs. Vpin3 Figure 5: Crosstalk vs. Frequency e t le ) s ( ct u d o r P e Figure 7: Total Power Dissipation vs. Output Power t e l o s b O 4/7 ) s t( o s b O - o r P TDA7263M APPLICATION SUGGESTION The recommended values of the components are those shown on application circuit of figure 1. Different values can be used; the following table can help the designer. R1 and R3 R2 and R4 R5 and R6 C1 and C2 C3 Recomm. Value 1.5KΩ 47Ω 4.7Ω 100nF 47µF C4 C5 C6 and C7 100nF 1000µF 47µF C8 and C9 C10 and C11 0.1µF 1000µF Component Purpose Larger Than Smaller Than Close loop gain setting (*) Close loop gain setting (*) Frequency stability Input DC decoupling - Ripple Rejection - Mute time constant Supply Voltage Bypass Supply Voltage Bypass Feedback input DC decoupling Frequency stability Output DC decoupling Increase of gain Decrease of gain Danger of oscillations Higher SVR Increase of the Switch-on time Decrease of gain Increase of gain Increase of the Switch-on time Decrease of the Switch-on time Danger of oscillations Higher low-frequency cut-off Higher low frequency cutoff - Degradation of SVR - Worse turn-off pop by muting Danger of oscillations (*) Closed loop gain must be higher than 26dB c u d Figure 8: P. C. Board and Component Layout of the Application Circuit (1:1 scale). e t le ) s ( ct ) s t( o r P o s b O - u d o r P e t e l o s b O BUILT-IN PROTECTION SYSTEMS THERMAL SHUT-DOWN The presence of a thermal limiting circuit offers the following advantages: 1-an overload on the output (even if it is permanent), or an excessive ambient temperature can be easily withstood. 2-the heatsink can have a smaller factor of safety compared with that of a conventional circuit. There is no device damage in the case of excessive junction temperature; all that happens is that PO (and therefore Ptot) and IO are reduced. SHORT CIRCUIT (AC CONDITIONS) The TDA7263M can withstand accidental short circuits across the speaker made by a wrong connection during normal play operation. 5/7 TDA7263M mm DIM. MIN. TYP. inch MAX. MIN. TYP. MAX. A 5 0.197 B 2.65 0.104 C 1.6 D 0.063 1 E 0.49 0.039 0.55 0.019 0.022 F 0.88 0.95 0.035 G 1.45 1.7 1.95 0.057 0.067 0.077 G1 16.75 17 17.25 0.659 0.669 0.679 H1 19.6 0.037 0.772 H2 20.2 0.795 L 21.9 22.2 22.5 0.862 0.874 0.886 L1 21.7 22.1 22.5 0.854 0.87 0.886 L2 17.4 18.1 0.685 L3 17.25 17.5 17.75 0.679 0.689 0.699 L4 10.3 10.7 10.9 0.406 0.421 0.429 L7 2.65 2.9 0.104 M 4.25 4.55 4.85 0.167 0.179 0.191 M1 4.73 5.08 5.43 0.186 0.200 0.214 S 1.9 2.6 0.075 0.102 S1 1.9 2.6 0.075 0.102 Dia1 3.65 3.85 0.144 0.152 0.713 u d o r P e t e l o 6/7 c u d 0.114 ) s ( ct s b O OUTLINE AND MECHANICAL DATA o r P Multiwatt11 V o s b O - e t le ) s t( TDA7263M c u d e t le ) s ( ct ) s t( o r P o s b O - u d o r P e t e l o Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. s b O The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners © 2003 STMicroelectronics - All rights reserved STMicroelectronics GROUP OF COMPANIES Australia – Belgium - Brazil - Canada - China – Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States www.st.com 7/7