TDA7269SA TDA7269 TDA7269A TDA7269ASA TDA7265 TDA7499 TDA7499SA D94AU085 - Datasheet Archive

 

10W+10W STEREO AMPLIFIER WITH MUTE & ST-BY 1 2 FEATURES Figure 1. Package WIDE SUPPLY VOLTAGE RANGE UP TO +20V SPLIT SUPPLY

 

TDA7269SA TDA7269SA 10W+10W STEREO AMPLIFIER WITH MUTE & ST-BY 1 2 FEATURES Figure 1. Package WIDE SUPPLY VOLTAGE RANGE UP TO +20V SPLIT SUPPLY 10+10W @THD = 10%, RL= 8, VS = ±14V Clipwatt11 NO POP AT TURN-ON/OFF MUTE (POP FREE) STAND-BY FEATURE (LOW Iq) Table 1. Order Codes Part Number SHORT CIRCUIT PROTECTION TO GND THERMAL OVERLOAD PROTECTION CLIPWATT 11 PACKAGE Package TDA7269SA TDA7269SA Clipwatt11 signed for high quality sound application as Hi-Fi music centers and stereo TV sets. DESCRIPTION The TDA7269SA TDA7269SA is pin to pin compatible with TDA7269 TDA7269, TDA7269A TDA7269A, TDA7269ASA TDA7269ASA, TDA7265 TDA7265, TDA7499 TDA7499, TDA7499SA TDA7499SA. The TDA7269SA TDA7269SA is class AB power amplifier assembled in the @ Clipwatt 11 package, specially deFigure 2. Block Diagram +VS 15K 1000µF 1µF MUTE/ ST-BY IN (L) 3 5 7 15K +5V 4 + OUT (L) 8 1µF IN- (L) - 18K GND 18K 4.7 RL (L) 100nF 560 9 µP 10 IN- (R) 560 18K 1µF IN (R) 11 - 2 + 1 6 -VS OUT (R) 4.7 RL (R) 100nF 1000µF D94AU085 D94AU085 September 2004 Rev. 2 1/11 TDA7269SA TDA7269SA Table 2. Absolute Maximum Ratings Symbol Parameter Value ±22 IO 3 DC Supply Voltage V A 20 VS Unit W Output Power Current (internally limited) Ptot Total Power Dissipation (Tamb = 70°C) Tamb Ambient Operating Temperature (1) 0 to 70 °C Tstg, Tj Storage and Junction Temperature -40 to 150 °C Value Unit Figure 3. Pin Connection (Top view) 11 IN+(1) 10 IN-(1) 9 GND 8 IN-(2) 7 IN+(2) 6 -VS 5 MUTE 4 OUTPUT(2) 3 +VS 2 OUTPUT(1) 1 -VS D03AU1506 D03AU1506 Table 3. Thermal Data Symbol Parameter Rth j-case Thermal Resistance Junction-case Max. 3.9 °C/W Rth j-amb Thermal Resistance Junction-ambient 48 °C/W Figure 4. Single Supply Application +VS D1 5.1V R3 15K C1 1µF C5 1000µF MUTE PLAY 5V 0 MUTE R2 15K C2 100µF IN (L) Q1 BSX33 BSX33 5 7 4 IN- (L) 2 + IN- (R) - 9 C4 1µF IN (R) 11 C9 470µF OUT (L) 8 C3 1µF C6 0.1µF 3 R4 30K R5 1K + R1 10K R8 4.7 C7 0.1µF OUT (L) C10 470µF 10 1 6 GND OUT (R) R6 30K R7 1K R9 4.7 C8 0.1µF D96AU444A D96AU444A 2/11 OUT (R) TDA7269SA TDA7269SA Table 4. ELECTRICAL CHARACTERISTCS (Refer to the test circuit VS = ±14V; RL = 8; RS = 50; GV = 30dB, f = 1KHz; Tamb = 25°C, unless otherwise specified) Symbol Parameter VS Supply Voltage Range Iq Test Condition Total Quiescent Current VOS RL = 8; RL = 4; Min. Non Inverting Input Bias Current PO Output Power Unit V V 100 mA 25 -25 Max. ±20 ±15 ±5 ±5 60 Input Offset Voltage Ib Typ. mV Total Harmonic Distortion nA 10 10 W W THD = 1%; RL = 8; VS = ±12.5V; RL = 4; THD 500 7.5 7.5 W W RL = 8; PO = 1W; f = 1KHz; 0.03 % THD = 10%; RL = 8; VS = ±12.5V; RL = 4; 8 7.5 RL = 8; PO = 0.1 to 5W; f = 100Hz to 15KHz; 0.7 RL = 4; PO = 1W; f = 1KHz; 0.02 RL = 4; VS = ±10V; PO = 0.1 to 5W; f = 100Hz to 15KHz; CT Cross Talk SR 1 Ri SVR Tj Total Output Noise 70 60 dB dB 10 V/µs 80 dB A Curve f = 20Hz to 22KHz Input Resistance Supply Voltage Rejection (each channel) % 50 Open Loop Voltage Gain eN % 6.5 Slew Rate GOL f = 1KHz; f = 10KHz; % 3 4 15 8 µV µV dB 145 Thermal Shut-down Junction Temperature K 60 f = 100Hz; VR = 0.5V 20 °C MUTE FUNCTION [ref +VS] (*) VMUTE Mute /Play threshold -7 -6 AMUTE Mute Attenuation 60 70 -3.5 -2.5 -5 V dB STAND-BY FUNCTIONS [ref: +VS] (only for Split Supply) VST-BY Stand-by Mute threshold AST-BY Stand-by Attenuation IqST-BY Quiescent Current @ Stand-by -1.5 110 3 V dB 6 mA (*) In mute condition the current drawn from Pin 5 must be 650µA 3/11 TDA7269SA TDA7269SA 3 MUTE STAND-BY FUNCTION The pin 5 (MUTE/STAND-BY) controls the amplifier status by two different thresholds, referred to +VS. ­ When Vpin5 higher than = +VS -2.5V the amplifier is in Stand-by mode and the final stage generators are off. ­ When Vpin5 between = +VS -2.5V and VS -6V the final stage current generators are switched on and the amplifier is in mute mode. ­ When Vpin5 lower than = +VS -6V the amplifier is play mode. Figure 5. +VS (V) 20 t -VS -20 VIN (mV) Vpin5 (V) VS VS-2.5 VS-6 VS-10 VS-10 Iq (mA) 0 VOUT (V) OFF PLAY STDBY PLAY OFF STDBY STDBY MUTE 4/11 D94AU086 D94AU086 MUTE MUTE MUTE TDA7269SA TDA7269SA Figure 6. Test and Application Circuit (Stereo Configuration) +VS R2 C3 MUTE/ ST-BY Q1 R1 IN (L) C4 +VS 3 5 7 C1 R4 R3 4 + OUT (L) 8 SW1 ST-BY DZ IN- (L) - GND C5 R5 R7 RL (L) C8 R6 9 SW2 MUTE 10 R9 IN- (R) R8 C2 IN (R) 11 - 2 OUT (R) + 1 R10 6 -VS C7 RL (R) C9 C6 D94AU087B D94AU087B 4 APPLICATION SUGGESTIONS 4.1 (Demo Board Schematic) The recommended values of the external components are those shown the demoboard schematic different values can be used, the following table can help the designer Table 5. . COMPONENT SUGGESTION VALUE R1 10K Mute Circuit Increase of Dz Biasing Current R2 15K Mute Circuit Vpin #5 Shifted Downward Vpin #5 Shifted Upward R3 18K Mute Circuit Vpin #5 Shifted Upward Vpin #5 Shifted Downward R4 15K Mute Circuit Vpin #5 Shifted Upward Vpin #5 Shifted Downward R5, R8 18K Increase of Gain R6, R9 560 Closed Loop Gain Setting (*) R7, R10 4.7 Frequency Stability Danger of Oscillations C1, C2 1µF Input DC Decoupling C3 1µF St-By/Mute Time Constant C4, C6 1000µF Supply Voltage Bypass Danger of Oscillations C5, C7 0.1µF Supply Voltage Bypass Danger of Oscillations C8, C9 0.1µF Frequency Stability Dz 5.1V Mute Circuit PURPOSE LARGER THAN RECOMMENDED VALUE SMALLER THAN RECOMMENDED VALUE Decrease of Gain Danger of Oscillations Higher Low Frequency Cutoff Larger On/Off Time Smaller On/Off Time (*) Closed loop gain has to be 25dB 5/11 TDA7269SA TDA7269SA 4.2 PC Board Figure 7. LC Figure 8. LS Figure 9. Component Layout 6/11 TDA7269SA TDA7269SA 5 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) 5.1 Example: VCC = ±14V, Rload = 8ohm, RTh j-c = 3.9 °C/W , Tamb max = 50°C 2 2V cc Pdmax = (N° channels) · - + I q V c c 2 R lo ad Pdmax = 2 · ( 4.96 ) + 0.84 = 10.7 W 150 ­ T am b max 150 ­ 50 (Heat Sinker) R Th c-a = - ­ R T h j-c = - ­ 3.9 = 5.4°C/W 10.7 P d max In figure 7 is shown the Power derating curve for the device. Figure 10. Power derating curve 25 20 Pd (W) (a) 15 a) Infinite Heatsink b) 10 5.0 °C/ W c) (b) 7.0 °C/ W (c) 5 0 0 40 80 120 160 Tamb (°C) 7/11 TDA7269SA TDA7269SA 6 CLIPWATT ASSEMBLING SUGGESTIONS The suggested mounting method of Clipwatt on external heat sink, requires the use of a clip placed as much as possible in the plastic body center, as indicated in the example of figure 11. A thermal grease can be used in order to reduce the additional thermal resistance of the contact between package and heatsink. A pressing force of 7 - 10 Kg gives a good contact and the clip must be designed in order to avoid a maximum contact pressure of 15 Kg/mm2 between it and the plastic body case. As example , if a 15Kg force is applied by the clip on the package , the clip must have a contact area of 1mm2 at least. Figure 11. Example of right placement of the clip 8/11 TDA7269SA TDA7269SA Figure 12. Clipwat11 Mechanical Data & Package Dimensions mm inch DIM. MIN. TYP. MAX. MIN. TYP. MAX. A 3.2 0.126 B 1.05 OUTLINE AND MECHANICAL DATA 0.041 C 0.15 0.006 D 1.5 0.059 E 0.49 F 0.77 0.55 0.8 F1 0.019 0.88 0.030 Weight: 1.80gr 0.002 0.031 0.15 0.035 0.006 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 12 0.480 H2 18.6 0.732 H3 19.85 0.781 L 17.9 0.700 L1 14.55 0.580 L2 10.7 11 11.2 0.421 0.433 L3 5.5 0.217 M 2.54 0.100 M1 2.54 0.441 0.100 Clipwatt11 0044448 G 9/11 TDA7269SA TDA7269SA Table 6. Revision History Date Revision May 2003 1 First Issue Septembe 2004 2 Changed Status and the graphic aspect in compliant to the new rules "Corporate Technical Pubblications Design Guide" 10/11 Description of Changes TDA7269SA TDA7269SA 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 11/11