TDA7495S ® 11W+11W AMPLIFIER 11+11W OUTPUT POWER RL = 8Ω @THD = 10% VCC = 28V ST-BY AND MUTE FUNCTIONS LOW TURN-ON TURN-OFF POP NOISE NO BOUCHEROT CELL NO ST-BY RC INPUT NETWORK SINGLE SUPPLY RANGING UP TO 35V SHORT CIRCUIT PROTECTION THERMAL OVERLOAD PROTECTION INTERNALLY FIXED GAIN SOFT CLIPPING MULTIWATT 15 PACKAGE MULTIPOWER BI50II TECHNOLOGY Multiwatt15 ORDERING NUMBER: TDA7495S DESCRIPTION The TDA7495S is a stereo 11+11W class AB power amplifier assembled in the @ Multiwatt 15 package, specially designed for high quality sound, TV applications. Features of the TDA7495S include linearStand-by and mute functions. BLOCK AND APPLICATION DIAGRAM VS 13 1 INR 470nF 30K 1000µF 14 + OUTR OP AMP S1 ST-BY S_GND 9 8 +5V STBY MUTE/STBY PROTECTIONS PW_GND 10K 60K 11 10 MUTE S_GND 1µF +5V S2 MUTE 5 INL 470nF + 30K 12 - 1000µF OP AMP SVR 7 OUTL 15 PW_GND 470µF D99AU1015 Jenuary 2000 1/11 TDA7495S ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit VS DC Supply Voltage 40 V VIN Maximum Input Voltage 8 Vpp Total Power Dissipation (Tamb = 70°C) Ambient Operating Temperature (1) 20 -20 to 85 W °C Storage and Junction Temperature -40 to 150 °C Ptot Tamb Tstg, Tj (1) Operation between -20 to 85 °C guaranteed by correlation with 0 to 70°C. PIN CONNECTION (Top view) 15 PW_GND 14 OUTR 13 VS 12 OUTL 11 PW_GND 10 MUTE 9 STBY 8 S_GND 7 SVR 6 N.C. 5 INL 4 N.C. 3 N.C. 2 N.C. 1 INR D99AU1016 THERMAL DATA Symbol Parameter Rth j-case Thermal Resistance Junction-case Rth j-amb Thermal Resistance Junction-ambient Value Typ. = 2 max Unit Max. = 2.8 35 °C/W °C/W ELECTRICAL CHARACTERISTICS (Refer to the test circuit VS = 20V; RL = 8Ω, Rg = 50Ω, Tamb = 25°C). Symbol VS Test Condition Min. Typ. 11 Max. Unit 35 V 70 100 750 mA mV 11.5 V Total Quiescent Current Output DC Offset Referred to SVR Potenial No Input Signal VO Quiescent Output Voltage VS = 20V 8.5 10 PO Output Power THD = 10%; RL = 8Ω; VS = 28V THD = 1%; RL = 8Ω; VS = 28V 9.5 7.5 11 8.8 W W THD = 10%; RL = 4Ω; VS = 20V THD = 1%; RL = 4Ω; VS = 20V 7 5 8.7 6.8 W W Iq DCVOS 2/11 Parameter Supply Voltage Range -750 THD = 10%; RL = 8Ω; VS = 18V 3.5 4 W THD = 1%; RL = 8Ω; VS = 18V 2.2 3.2 W TDA7495S ELECTRICAL CHARACTERISTICS (continued) Symbol Parameter Test Condition THD Total Harmonic Distortion GV = 30dB; PO = 1W; f = 1KHz; Ipeak Vin Output Peak Current (internally limited) AMin VOL BW eN SR Ri SVR Min. Typ. 1.7 2.4 Input Signal Max. Unit 0.4 % 2.8 Vrms A Attenuation at Minimum Volume Vol Ctrl < 0.5V 80 dB Total Output Noise f = 20Hz to 22KHz Play 60 150 µV f = 20Hz to 22KHz Mute 60 150 µV 0.6 Slew Rate 5 Input Resistance Supply Voltage Rejection MHz 8 V/µs 22.5 30 KΩ f = 1kHz; max volume CSVR = 470µF; VRIP = 1Vrms 35 39 dB f = 1kHz; max attenuation CSVR = 470µF; VRIP =1Vrms 55 65 dB TM Thermal Muting 150 °C Ts Thermal Shut-down 160 °C MUTE STAND-BY & INPUT SELECTION FUNCTIONS VST-BY Stand-by threshold 2.3 2.5 2.7 V VMUTE Mute Threshold 2.3 2.5 2.7 V IqST-BY AMUTE Quiescent Current @ Stand-by 0.6 1 mA IstbyBIAS Stand-by bias current ImuteBIAS Mute bias current Mute Attenuation 50 Stand by on VST-BY = 5V VMUTE = 5V Play or Mute Mute Play -20 65 dB 80 µA µA -5 1 5 µA µA 0.2 2 µA 3/11 TDA7495S Figure 1a: Application Circuit. +VS C1 1000µF C9 0.1µF VS PW_GND 13 11 1 INR C2 470nF + 30K 15 PW_GND PW_GND 14 - OUTR C8 1000µF OP AMP S1 STBY S_GND 9 8 MUTE/STBY PROTECTIONS C7 1µF 5 INL C3 470nF + 30K OP AMP SVR S2 MUTE 12 OUTL C6 1000µF 7 C4 470µF D99AU1017 Figure 1b: P.C.B. and Component Layout. 4/11 S_GND R2 10K 10 +5V PW_GND +5V TDA7495S APPLICATION SUGGESTIONS The recommended values of the external components are those shown on the application circuit of figure 1a. Different values can be used, the following table can help the designer. COMPONENT SUGGESTION VALUE R2 10K PURPOSE Mute time constant LARGER THAN SUGGESTION SMALLER THAN SUGGESTION Larger mute on/off time Smaller mute on/off time Supply voltage bypass Danger of oscillation C1 1000µF C2 470nF Input DC decoupling Lower low frequency cutoff C3 470nF Input DC decoupling Lower low frequency cutoff Higher low frequency cutoff C4 470µF Ripple rejection Better SVR Worse SVR C6 1000µF C7 1µF C8 1000µF C9 100nF Output DC decoupling Lower low frequency cutoff Mute time costant Larger mute on/off time Higher low frequency cutoff Higher low frequency cutoff Smaller mute on/off time Output DC decoupling Lower low frequency cutoff Higher low frequency cutoff Supply voltage bypass Danger of oscillation TYPICAL CHARACTERISTICS: Refer to the application circuit of fig.1A Tamb = 25°C; VS = 20V; RL = 8Ω; F = 1KHz; RS = 50Ω; unless otherwise specified. Figure 2: Output Power vs Supply Voltage POUT (W) 16 D97AU559 Figure 3: Distortion vs Output Power D97AU560 d (%) 14 VS=28V RL=8Ω RL=8Ω 12 1 d=10% 10 f=15KHz 8 6 f=1KHz 0.1 d=1% 4 2 0 0.01 11 15 19 23 27 31 VS(V) 0 2 4 6 8 POUT(W) 5/11 TDA7495S Figure 4: Output Power vs Supply Voltage POUT (W) D97AU561 Figure 5: Distortion vs Output Power D97AU562 d (%) 14 VS=20V RL=4Ω 12 RL=4Ω 1 10 f=15KHz 8 d=10% f=1KHz 6 0.1 d=1% 4 2 0 0.01 10 12 14 16 18 20 22 24 VS(V) Figure 6: Stand-by Attenuation vs Vpin #9 ATT (dB) D97AU565 0 2 4 POUT(W) Figure 7: Mute Attenuation vs V pin #10 ATT (dB) D97AU566 0dB=1W 0 6 0dB=1W 0 -20 -20 -40 -40 -60 -60 -80 -80 -100 -120 -100 0 1 2 3 4 Vpin#9(V) Figure 8: Power dissipation vs Output Power PDISS (W) D97AU567 RL=2 x 8Ω f=1KHz 10 0 1 2 3 Figure 9: Power Dissipation vs Output Power PDISS (W) 16 D97AU568 RL=2 x 4Ω f=1KHz VS=26V VS=28V 8 4 Vpin#10(V) 12 VS=24V 6 VS=20V 8 VS=18V 4 VS=14V 2 4 0 0 0.1 6/11 1 10 POUT(W) 0.1 1 10 POUT(W) TDA7495S MUTE STAND-BY TRUTH TABLE MUTE ST-BY OPERATING CONDITION H H STANDBY L H STANDBY H L L L MUTE PLAY Turn ON/OFF Sequences (for optimizing the POP performances) A) USING MUTE AND STAND-BY FUNCTIONS VS (V) 28 ST-BY pin#9 (V) 5 VSVR pin#7(V) 2.5V MUTE pin#10 (V) 5 INPUT (mV) VOUT (V) OFF STBY MUTE PLAY MUTE STBY OFF IQ (mA) D96AU531A B) USING ONLY THE MUTE FUNCTION To semplify the application, the stand-by pin can be connected directly to Ground. During the ON/OFF transitions we recommend to respect the following conditions: - At the turn-on the transition mute to play must be made when the SVR pin is higher than 2.5V - At the turn-off the TDA7495S must be brought to mute from the play condition when the SVR pin is higher than 2.5V. 7/11 TDA7495S PINS: INL, INR PIN: MUTE VS VS 500µA 6K MUTE 200 10K INn 50µA 30K D97AU592 D97AU589 SVR PINS: PW-GND, S-GND PINS: OUT R, OUT L VS VS OUT GND D97AU593 D97AU588 PIN: STBY VS 10µA STBY 200 65K D97AU594 8/11 TDA7495S PIN: SVR VS VS VS OUT L + - 20K 6K 1K 20K 6K 1K 30K SVR 30K - OUT R + 100µA D97AU585A 9/11 TDA7495S 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 0.66 0.75 0.026 G 1.02 1.27 1.52 0.040 0.050 0.060 G1 17.53 17.78 18.03 0.690 0.700 0.710 H1 19.6 0.030 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 0.870 0.886 L2 17.65 18.1 0.695 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 0.713 L7 2.65 2.9 0.104 M 4.25 4.55 4.85 0.167 0.179 0.191 M1 4.63 5.08 5.53 0.182 0.200 0.218 0.114 S 1.9 2.6 0.075 S1 1.9 2.6 0.075 0.102 Dia1 3.65 3.85 0.144 0.152 10/11 OUTLINE AND MECHANICAL DATA 0.102 Multiwatt15 V TDA7495S 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. 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