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 ORDERING NUMBER:TDA7263M APPLICATION CIRCUIT March 1995 1/7 TDA7263M ABSOLUTE MAXIMUM RATINGS Symbol Parameter Unit 35 V Supply Voltage IO Output Peak Current (repetitive f >20Hz) 2.5 A IO Output Peak Current (non repetitive, t = 100µs) 3.5 A Ptot Total Power Dissipation (Tcase = 70°C) Top Operating Temperature Range Tstg,Tj Storage & Junction Temperature PIN CONNECTION (Top view) Figure 1: Block Diagram 2/7 Value VS 30 W 0 to 70 °C -40 to 150 °C 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; T amb = 25°C unless otherwise specified.) Symbol Parameter Test Condition VS Supply Voltage VO Quiescent Output Voltage Iq 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 R S = 10KΩ; f = 1KHz RI Input Resistance d Min. Typ. 10 Max. 32 13.5 70 Tamb = 85°C 10 95 100 mA W W 0.2 0.5 70 R S = 10KΩ; f = 10KHz V V 12 9.5 0.02 Unit % dB 60 dB 200 KΩ fL Low Frequency Roll-off (-3dB) 40 Hz fH High Frequency Roll-off (-3dB) 80 KHz eN Total Input Noise Voltage A Curve; R S = 10KΩ 1.5 f = 22Hz to 22KHz; RS = 10KΩ SVR Tj Supply Voltage Rejection (each channel) RS = 10KΩ; f = 100Hz; Vr = 0.5V 3 45 Thermal Shutdown Junction Temperature mV 10 µV 60 dB 145 °C 1.6 V MUTE FUNCTION VTMUTE Mute Threshold VTPLAY Play Threshold ATT AM Mute Attenuation IqMUTE Quiescent Current @ Mute 1 70 4.5 V 100 dB 7 10 mA TYPICAL CHARACTERISTICS (referred to the typical Application Circuit, VS = 28V, RL = 8Ω, unless otherwise specified) Figure 1: Output Power vs. Supply Voltage Figure 2: Distortion vs. Output Power 3/7 TDA7263M Figure 3: Quiescent Current vs. Supply Voltage Figure 4: Supply Voltage Rejection vs. Frequency Figure 5: Crosstalk vs. Frequency Figure 6: Output Attenuation & Quiescent Current vs. Vpin3 Figure 7: Total Power Dissipation vs. Output Power 4/7 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. Component R1 R2 R5 C1 C3 and R3 and R4 and R6 and C2 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 Purpose Larger 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 Increase of the Switch-on time Smaller Than Decrease of gain Increase of gain Higher low frequency cutoff - Degradation of SVR - Worse turn-off pop by muting Danger of oscillations Decrease of the Switch-on time Danger of oscillations Higher low-frequency cut-off (*) Closed loop gain must be higher than 26dB Figure 8: P. C. Board and Component Layout of the Application Circuit (1:1 scale). 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 I O 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 MULTIWATT11 PACKAGE MECHANICAL DATA mm DIM. MIN. TYP. MAX. MIN. TYP. MAX. A 5 0.197 B 2.65 0.104 C 1.6 0.063 D 1 E 0.49 0.039 0.55 0.019 0.022 F 0.88 0.95 0.035 G 1.57 1.7 1.83 0.062 0.067 0.072 G1 16.87 17 17.13 0.664 0.669 0.674 H1 19.6 0.037 0.772 H2 6/7 inch 20.2 0.795 L 21.5 22.3 0.846 0.878 L1 21.4 22.2 0.843 0.874 L2 17.4 18.1 0.685 0.713 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 4.1 4.3 4.5 0.161 0.169 0.177 M1 4.88 5.08 5.3 0.192 0.200 0.209 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 0.114 TDA7263M Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics 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 SGS-THOMSON Microelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics. 1995 SGS-THOMSON Microelectronics - All Rights Reserved MULTIWATT is a Registered Trademark of SGS-THOMSON Microelectronics SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands - Singapore Spain - Sweden - Switzerland - Taiwan - Thaliand - United Kingdom - U.S.A. 7/7