TDA7263L 6 + 6W STEREO AMPLIFIER WITH MUTING 1 ■ ■ ■ ■ ■ 2 FEATURES Figure 1. Package WIDE SUPPLY VOLTAGE RANGE HIGH OUTPUT POWER 6+6W @ VS=20V, RL = 8Ω, THD=10% MUTE FACILITY (POP FREE) WITH LOW CONSUMPTION AC SHORT CIRCUIT PROTECTION THERMAL OVERLOAD PROTECTION SIP10 Table 1. Order Codes DESCRIPTION Part Number Package TDA7263L SIP10 The TDA7263L is class AB dual audio power amplifier assembled in Single IN Line 10 pins package, specially designed for high quality sound application as HI-FI music centers and stereo TV sets. Figure 2. Block Diagram R7 1K +VS = MUTE SW C3 47µF C4 0.1µF 3 9 1 IN (R) C10 1000µF 10 + - C1 100nF 27K 2 C6 47µF TDA7263L C2 100nF IN (L) C5 1000µF 5 R1 1.5K R2 47 27K 4 6 RL (R) R5 4.7 C11 1000µF 7 + - C8 0.1µF C7 47µF R3 1.5K R4 47 C9 0.1µF RL (L) R6 4.7 D02AU1426 September 2004 Rev. 2 1/10 TDA7263L Table 2. Absolute Maximum Ratings Symbol Value Unit VS Supply Voltage without Load 30 V IO Output Peak Current (repetitive f >20Hz) 1.7 A IO Output Peak Current (non repetitive, t = 100µs) 2 A Ptot Total Power Dissipation (Tcase = 70°C) 8 W Top Operating Temperature Range 0 to 70 °C -40 to 150 °C Tstg,Tj Parameter Storage & Junction Temperature Figure 3. Pin Connection (Top view) OUTPUT(1) 10 9 +VS 8 N.C. 7 OUTPUT(2) 6 GND 5 NON INVERTING INPUT(2) 4 INVERTING INPUT(2) 3 SVR/MUTING 2 INVERTING INPUT(1) 1 NON INVERTING INPUT(1) D02AU1427 Figure 4. Block Diagram CFCOUP1 RFI 27K IN- L IN+ L 2 + 1 - 10 L OUT L RF1 SVR 3 SC PROTECTION MUTE RF2 +VS IN+ R IN- R REFERENCES Tj TURN-ON AND OFF TH PROTECTION 9 5 + 4 - R 7 OUT R RF3 RFI 27K 6 GND RF4 CFCOUP1 D02AU1428 2/10 TDA7263L Table 3. Thermal Data Symbol Rth j-case Parameter Thermal resistance junction to case Max Value Unit 9 °C/W Table 4. ELECTRICAL CHARACTERISTCS (Refer to the stereo test and application circuit, VS = 20V; RL = 8Ω; Gv = 30dB; f = 1KHz; Tamb = 25°C unless otherwise specified.) Symbol VS Parameter Supply Voltage Test Condition Min. 10 Typ. VO Quiescent Output Voltage 9.5 Iq Total Quiescent Current 70 PO Output Power (RMS) d = 10%; Tamb = 85°C 5 6 4 Total Harmonic Distortion d = 1% PO = 1W, f = 1kHz 5 0.03 d Cross Talk RI Input Resistance 95 mA W W % 0.3 0.5 RS = 10K&; f = 1KHz 70 dB RS = 10K&; f = 10KHz 60 dB 200 KΩ 100 fL Low Frequency Roll-off (-3dB) 40 Hz fH High Frequency Roll-off (-3dB) 80 KHz eN Total Input Noise Voltage 1.5 mV A Curve; RS = 10KΩ f = 22Hz to 22KHz; RS = 10KΩ SVR Supply Voltage Rejection (each channel) Tj Thermal Shutdown Junction Temperature MUTE FUNCTION VTMUTE Mute Threshold 3 Unit V V f = 100Hz to 10KHz; PO = 0.1 to 3W CT Max. 24 VTPLAY Play Threshold ATTAM Mute Attenuation IqMUTE Quiescent Current @ Mute 3 RS = 10KΩ; f = 100Hz; Vr = 0.5V 45 V dB 145 °C 1 70 10 60 1.6 V 4.5 V 100 dB 7 10 mA TYPICAL CHARACTERISTICS (referred to the typical Application Circuit, VS = 20V, RL = 8Ω, unless otherwise specified) Figure 5. Output Power vs. Supply Voltage Figure 6. Distortion vs. Output Power d% 10 5 2 1 0.5 f =15KHz 0.2 0.1 0.05 f =1KHz 0.02 0.01 100m 200m 300m 500m 700m 1 Pout (W) 2 3 4 5 6 78 3/10 TDA7263L Figure 7. Quiescent Current vs. Supply Voltage Figure 10. Output Attenuation & Quiescent Current vs. Vpin3 Figure 8. Supply Voltage Rejection vs. Freq. Figure 11. Total Power Dissipation vs. Output Power Figure 9. Crosstalk vs. Frequency 4/10 TDA7263L Figure 12. PC Board Component Layout Figure 13. Evaluation Board Top Layer Layout Figure 14. Evaluation Board Bottom Layer Layout 5/10 TDA7263L 4 APPLICATION SUGGESTION The recommended values of the components are those shown on the typical application circuit. Different values can be used; the following table can help the designer. Component Recomm. Value R1 and R3 1.5KΩ Close loop gain setting (*) Increase of gain Decrease of gain R2 and R4 47Ω Close loop gain setting (*) Decrease of gain Increase of gain R5 and R6 4.7Ω Frequency stability Danger of oscillations C1 and C2 100nF Input DC decoupling Higher SVR Higher low frequency cutoff C3 47µF - Ripple Rejection - Mute time constant Increase of the Switch-on time - Degradation of SVR - Worse turn-off pop by muting C4 100nF Supply Voltage Bypass C5 1000µF Supply Voltage Bypass C6 and C7 47µF Feedback input DC decoupling C8 and C9 0.1µF Frequency stability Danger of oscillations C10 and C11 1000µF Output DC decoupling Higher low-frequency cut-off Purpose Larger Than Smaller Than Danger of oscillations Increase of the Switch-on time Danger of Switch-on time (*) Closed loop gain must be higher than 26dB 5 BUILT-IN PROTECTION SYSTEMS 5.1 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; if for any reason the junction temperature increases up to 145°C. the thermal shutdown simply reduces the output power and therefore the power dissipation. The maximum allowable power dissipation depends upon the thermal resistance junction-ambient. Figure 15 shows the dissipable power as a function of ambient temperature for different heatsink thermal resistance. 5.2 Short Circuit (AC Conditions) The TDA7263L can withstand accidental short circuits across the speaker made by a wrong connection during normal play operation. 6/10 TDA7263L 6 HEAT SINK DIMENSIONING: In order to avoid the thermal protection intervention, that is placed approximatively at Tj = 150°C, it is important the dimensioning of the Heat Sinker RTh (°C/W). The parameters that influence the dimensioning are: – Maximum dissipated power for the device (Pdmax) – Max thermal resistance Junction to case (R Th j-c) – Max. ambient temperature Tamb max – Quiescent current Iq (mA) 6.1 Example: VCC = 20V, Rload = 8ohm, RTh j-c = 9 °C/W , Tamb max = 50°C 2 2 Vcc Pdmax = (N° channels) · -------------------------- + I q ⋅ V cc 2 Π ⋅ R lo ad Pdmax = 2 · ( 2.5 ) + 0.5 = 5.5W 150 – T am b max 150 – 50 (Heat Sinker) R Th c-a = ----------------------------------------- – R T h j-c = ---------------------- – 9 = 9.0°C /W 5.5 P d max In figure 11 is shown the Power derating curve for the device. Figure 15. Power Derating Curve 10 8 (b) Pd (W) 6 a) (a) (c) Infinite Heatsink b) 5.0 °C/ W c) 7.0 °C/ W 4 2 0 0 40 80 120 160 Tamb (°C) 7/10 TDA7263L Figure 16. SIP10 Mechanical Data & Package Dimensions DIM. mm MIN. inch TYP. MAX. A TYP. 2.7 3 B 0.280 0.106 0.118 24.8 b1 0.976 0.5 0.85 1.6 0.033 0.063 3.3 0.130 c1 0.43 0.017 c2 1.32 0.052 D 23.7 0.933 14.5 0.571 e 2.54 0.100 e3 22.86 L Weight: 2.02gr 0.020 C d1 OUTLINE AND MECHANICAL DATA MAX. 7.1 a1 b3 MIN. 0.900 3.1 0.122 L1 3 0.118 L2 17.6 0.693 L3 0.25 L4 0.254 0.010 0.010 M 3.2 0.126 N 1 0.039 P 0.15 SIP10 0.006 C D L1 L3 c2 N P 1 1 0 L L4 a1 L2 A d1 M b1 b3 e c 1 e3 B SIP10 0016108 D 8/10 TDA7263L Table 5. Revision History Date Revision Description of Changes June 2003 1 First Issue September 2004 2 Changed Status and the graphic aspect in compliant to the new rules “Corporate Technical Pubblications Design Guide” 9/10 TDA7263L 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. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners © 2004 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 of America www.st.com 10/10