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TDA7495S
11W +11W AMPLIFIER

11+11W OUTPUT POWER RL = 8. @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
Multiwatt 15 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. BLOCK AND APPLICATION CIRCUIT
Features of the TDA7495S include linearStand-by and mute functions.
VS 13 INR 470nF 1 30K + OP AMP S1 ST-BY S_GND 8 MUTE/STBY PROTECTIONS PW_GND 11 5 470nF 30K 60K 10 MUTE 9 STBY 10K 1F S2 MUTE INL + OP AMP SVR 470F
D99AU1015
14
1000F OUTR
+5V S_GND
+5V
12
OUTL 1000F
7
15
PW_GND
January 2004
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TDA7495S
ABSOLUTE MAXIMUM RATINGS
Symbol VS VIN Ptot Tamb Tstg,TJ DC Supply Voltage Maximum Input Voltage Total Power Dissipation (Tamb = 70C) Ambient Operating Temperature (1) Storage and Junction Temperature Parameter Value 40 8 20 -20 to 85 -40 to 150 Unit V Vpp W C C
(1) Operation between -20 to 85 C guaranteed by correlation with 0 to 70C.
PIN CONNECTION (top view)
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 PW_GND OUTR VS OUTL PW_GND MUTE STBY S_GND SVR N.C. INL N.C. N.C. N.C. INR
D99AU1016
THERMAL DATA
Symbol Rth j-case Rth j-amb Parameter Thermal Resistance junction-case Thermal Resistance junction-ambient Value Typ. = 2; Max. = 2.8 max 35 Unit C/W C/W
ELECTRICAL CHARACTERISTCS (Refer to the test circuit Vs = 20V; RL = 8, Rg = 50, Tamb = 25C)
Symbol Parameter Supply Voltage Range Total Quiescent Current Output DC Offset Referred to SVR No Input Signal Potential Quiescent Output Voltage Output Power THD = 10%; RL = 8;VS = 28V THD = 1%; RL = 8; VS = 28V THD = 10%; RL = 4; VS = 20V THD = 1%; RL = 4; VS = 20V THD = 10%; RL = 8;VS = 18V THD = 1%; RL = 8; VS = 18V -750 8.5 9.5 7.5 7 5 3.5 2.2 10 11 8.8 8.7 6.8 4 3.2 Test Condition Min. 11 70 Typ. Max. 35 100 750 11.5 Unit V mA mV V W W W W W W
Vs
Iq DCVos VO PO
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TDA7495S
ELECTRICAL CHARACTERISTCS (Refer to the test circuit Vs = 20V; RL = 8, Rg = 50, Tamb = 25C)
Symbol THD Parameter Total Harmonic Distortion Output Peak Current Input Signal Closed Loop Gain 28.5 30 0.6 Total Output Noise f = 20Hz to 22KHz PLAY, f = 20Hz to 22KHz MUTE SR Ri SVR Slew Rate Input Resistance Supply Voltage Rejection f = 1KHz; max volume CSVR = 470F; VRIP = 1Vrms f = 1KHz; max attenuation CSVR = 470F; VRIP = 1Vrms TM TS Thermal Muting Thermal Shut-down 5 22.5 35 55 500 60 8 30 39 65 150 160 800 150 Test Condition Gv = 30dB; PO = 1W; f = 1KHz (internally limited) 1.7 2.4 2.8 31.5 Min. Typ. Max. 0.4 Unit % A Vrms dB MHz V V V/s K dB dB C C
Ipeak
VIN GV BW eN
MUTE & INPUT SELECTION FUNCTIONS VST-BY VMUTE IqST-BY AMUTE IstbyBIAS Stand-by ON Threshold Mute Threshold Quiescent Current @ Stand-by Mute Threshold Stand-by bias current Stand by ON: VST-BY = 5V; Vmute = 5V Play or Mute ImuteBIAS Mute Bias Current Mute Play -20 50 2.3 2.3 2.5 2.5 0.6 65 80 -5 1 0.2 5 2 2.7 2.7 1 V V mA V A A A A
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TDA7495S
Figure 1. Application circuit
+VS C1 1000F VS PW_GND 11 1 C2 470nF 30K + OP AMP 13 15 14 C8 1000F S1 STBY S_GND 8 MUTE/STBY PROTECTIONS 9 10 C7 1F + 30K OP AMP SVR C4 470F
D99AU1017
C9 0.1F PW_GND PW_GND OUTR
INR
+5V
R2 10K
S_GND +5V
INL C3 470nF
5
S2 MUTE OUTL
12 C6 1000F
PW_GND
7
Figure 2. PCB and Component Layout
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TDA7495S
APPLICATION SUGGESTIONS The recommended values of the external components are those shown on the application circuit of figure 1. Different values can be used, the following table can help the designer.
COMPONENT R2 C1 C2 C3 C4 C6 C7 C8 C9 SUGGESTION VALUE 10K 1000F 470nF 470nF 470F 1000F 1F 1000F 100nF PURPOSE Mute time constant Supply voltage bypass Input DC decoupling Input DC decoupling Ripple rejection Output DC decoupling Mute time constant Output DC decoupling Supply voltage bypass LARGER THAN SUGGESTION Larger mute on/off time SMALLER THAN SUGGESTION Smaller mute on/off time Danger of oscillation Lower low frequency cutoff Higher low frequency cutoff Lower low frequency cutoff Higher low frequency cutoff Better SVR Worse SVR
Lower low frequency cutoff Higher low frequency cutoff Larger mute on/off time Smaller mute on/off time
Lower low frequency cutoff Higher low frequency cutoff Danger of oscillation
TYPICAL CHARACTERISTICS: Refer to the application circuit of fig.1A Tamb = 25C; VS = 20V; RL = 8; f = 1KHz; RS = 50; unless otherwise specified. Figure 3. Output Power vs Supply Voltage
POUT (W) 16 14 RL=8 12 10 8 6 4 2 0 11 15 19 23 27 31 VS(V) d=1% d=10%
f=15KHz
D97AU559
Figure 4. Distortion vs Output Power
d (%)
D97AU560
VS=28V RL=8
1
0.1
f=1KHz
0.01 0 2 4 6 8 POUT(W)
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TDA7495S
Figure 5. Output Power vs Supply Voltage
POUT (W) 14
D97AU561
Figure 8. Mute Attenuation vs V pin #10
ATT (dB) 0
0dB=1W
D97AU566
12
RL=4
10 8
d=10%
-20 -40
d=1%
6
-60 -80 -100 0 1 2 3 4 Vpin#10(V)
4 2 0 10 12 14 16 18 20 22 24 VS(V)
Figure 6. Distortion vs Output Power
d (%)
VS=20V RL=4
D97AU562
Figure 9. Power dissipation vs Output Power
PDISS (W) 10 8
RL=2 x 8 f=1KHz VS=28V
D97AU567
1
f=15KHz
6
f=1KHz
VS=24V
0.1
4 2
VS=18V VS=14V
0.01 0 2 4 6 POUT(W)
0 0.1 1 10 POUT(W)
Figure 7. Stand-by Attenuation vs Vpin #9
ATT (dB) 0 -20 -40 -60 -80 -100 -120 0 1 2 3 4 Vpin#9(V)
0dB=1W
D97AU565
Figure 10. Power dissipation vs Output Power
PDISS (W) 16
RL=2 x 4 f=1KHz VS=26V
D97AU568
12
VS=20V
8
4
0 0.1 1 10 POUT(W)
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TDA7495S
MUTE STAND-BY TRUTH TABLE
MUTE H L H L St-BY H H L L OPERATING CONDITION STAND-BY STAND-BY MUTE PLAY
Turn ON/OFF Sequences (for optimizing the POP performances) A) USING ONLY THE MUTE FUNCTION
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 is recommended 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.
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TDA7495S
Figure 11. PINS: INL, INR
VS
Figure 14. PIN :MUTE
VS
6K INn 30K 500A
MUTE
200
10K
50A
D97AU589
SVR
D97AU592
Figure 12. PINS: PW-GND, S-GND Figure 15. PINS: OUT R, OUT L
VS GND
D97AU593
VS
Figure 13. PIN: STBY
VS
OUT
10A
D97AU588
STBY
200
65K
D97AU594
Figure 16. PIN: SVR
VS VS VS
+ 30K
OUT L
20K SVR 20K
6K
1K
6K
1K 30K OUT R -
100A
8/10
+
D97AU585A
TDA7495S
mm MIN. TYP. MAX. MIN. inch TYP. MAX. 0.197 2.65 1.6 1 0.49 0.66 1.02 17.53 19.6 20.2 21.9 21.7 17.65 17.25 10.3 2.65 4.25 4.73 1.9 1.9 3.65 4.55 5.08 17.5 10.7 22.2 22.1 22.5 22.5 18.1 17.75 10.9 2.9 4.85 5.43 2.6 2.6 3.85 0.862 0.854 0.695 0.679 0.406 0.104 0.167 0.186 0.075 0.075 0.144 0.179 0.200 0.689 0.421 0.874 0.87 1.27 17.78 0.55 0.75 1.52 18.03 0.019 0.026 0.040 0.690 0.772 0.795 0.886 0.886 0.713 0.699 0.429 0.114 0.191 0.214 0.102 0.102 0.152 0.050 0.700 0.039 0.022 0.030 0.060 0.710 0.104 0.063
DIM. A5 B C D E F G G1 H1 H2 L L1 L2 L3 L4 L7 M M1 S S1 Dia1
OUTLINE AND MECHANICAL DATA
Multiwatt15 (Vertical)
0016036 J
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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. 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 (c) 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 www.st.com
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