IC AMP AUDIO 15W AB MULTIWATT15

TDA7297

Manufacturer Part NumberTDA7297
DescriptionIC AMP AUDIO 15W AB MULTIWATT15
ManufacturerSTMicroelectronics
TypeClass AB
TDA7297 datasheet
 

Specifications of TDA7297

Output Type2-Channel (Stereo)Max Output Power X Channels @ Load15W x 2 @ 8 Ohm
Voltage - Supply6.5 V ~ 18 VFeaturesMute, Short-Circuit and Thermal Protection, Standby
Mounting TypeThrough HolePackage / CaseMultiwatt-15 (Vertical, Bent and Staggered Leads)
Amplifier ClassABNo. Of Channels2
Output Power15WSupply Voltage Range6.5V To 18V
Thd + N0.1% @ 1W, 8ohm, VS=16.5VLoad Impedance8ohm
Operating Temperature Range0°C To +70°CRohs CompliantYes
Lead Free Status / RoHS StatusLead free / RoHS CompliantOther names497-3967-5
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WIDE SUPPLY VOLTAGE RANGE (6V -18V)
MINIMUM EXTERNAL COMPONENTS
– NO SVR CAPACITOR
– NO BOOTSTRAP
– NO BOUCHEROT CELLS
– INTERNALLY FIXED GAIN
STAND-BY & MUTE FUNCTIONS
SHORT CIRCUIT PROTECTION
THERMAL OVERLOAD PROTECTION
DESCRIPTION
The TDA7297 is a dual bridge amplifier specially
designed for TV and Portable Radio applications.
BLOCK AND APPLICATION DIAGRAM
0.22 F
IN1
ST-BY
S-GND
0.22 F
IN2
MUTE
PW-GND
September 2003
15+15W DUAL BRIDGE AMPLIFIER
ORDERING NUMBER: TDA7297
V CC
3
13
4
+
-
7
9
-
Vref
+
12
+
-
6
-
8
+
TDA7297
TECHNOLOGY BI20II
Multiwatt 15
470 F
100nF
1
OUT1+
2
OUT1-
15
OUT2+
14
OUT2-
D94AU175B
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TDA7297 Summary of contents

  • Page 1

    ... NO BOOTSTRAP – NO BOUCHEROT CELLS – INTERNALLY FIXED GAIN STAND-BY & MUTE FUNCTIONS SHORT CIRCUIT PROTECTION THERMAL OVERLOAD PROTECTION DESCRIPTION The TDA7297 is a dual bridge amplifier specially designed for TV and Portable Radio applications. BLOCK AND APPLICATION DIAGRAM 0.22 F IN1 ST-BY S-GND ...

  • Page 2

    ... TDA7297 ABSOLUTE MAXIMUM RATINGS Symbol V Supply Voltage S I Output Peak Current (internally limited Total Power Dissipation (T tot T Operating Temperature Storage and Junction Temperature stg j THERMAL DATA Symbol R Thermal Resistance Junction to case th j-case PIN CONNECTION (Top view) ELECTRICAL CHARACTERISTICS (V specified.) Symbol Parameter ...

  • Page 3

    ... Noise" on the speakers. A delay of 100-200ms between St-by and mute signals is suitable for a proper operation S-GND 9 Vref 12 6 PW-GND 8 Min. Typ. Max. 2.3 2.9 0.8 1.3 150 220 470 OUT1 OUT1 OUT2 OUT2- + D95AU258A TDA7297 Unit 4.1 V 1.8 V 100 A V 500 V C6 100nF 3/9 ...

  • Page 4

    ... TDA7297 Figure 2: Microprocessor Driving Signals. +V ( (mV) V ST-BY pin 7 1.8 1.3 0.8 V MUTE pin 6 4.1 2.9 2 (mA) V OUT (V) OFF ST-BY (B) Low Cost Application In low cost applications where the mP is not pre- sent, the suggested circuit is shown in fig.3. The St-by and mute terminals are tied together ...

  • Page 5

    ... Figure 3: Stand-alone Low-cost Application. R1 IN1 47K R2 C4 47K 10 F IN2 Figure 3b: PCB and Component Layout of the Application Circuit (Fig. 1 ST-BY 7 S-GND 9 - Vref + C5 0. MUTE 6 - PW-GND 470 F 100nF 1 OUT1+ 2 OUT1- 15 OUT2+ 14 OUT2- D95AU260A TDA7297 5/9 ...

  • Page 6

    ... TDA7297 Figure 4: Distortion vs Output Power TH D(%) 10 Vcc = 16. ohm 15KH 0 0.010 0 out (W ) Figure 6: Distortion vs Frequency 16. 100m W 0 0.010 100 1k freq uen Figure 8: Output Power vs Supply Voltage P o 8.00 00 6.00 00 4.00 00 2.00 00 0.0 6.0 00 7.0 00 8.0 00 9.0 00 10.00 11 .00 12.00 13.00 14.00 15 .00 16.00 17 .00 18.00 ...

  • Page 7

    ... Vpin.6(V) Figure 12: Quiscent Current vs. Supply Voltage Iq (mA Vsupply(V) Figure 11: Stand-By Attenuation vs Vpin.7 Attenuation (dB -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 3 TDA7297 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 Vpin.7 (V) 2 2.2 2.4 7/9 ...

  • Page 8

    ... TDA7297 mm DIM. MIN. TYP. MAX. MIN 2. 0.49 0.55 0.019 F 0.66 0.75 0.026 G 1.02 1.27 1.52 0.040 G1 17.53 17.78 18.03 0.690 H1 19.6 0.772 H2 20.2 L 21.9 22.2 22.5 0.862 L1 21.7 22.1 22.5 0.854 L2 17.65 18.1 0.695 L3 17.25 17.5 17.75 0.679 L4 10.3 10 ...

  • Page 9

    ... 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 All other names are the property of their respective owners © 2003 STMicroelectronics - All rights reserved STMicroelectronics GROUP OF COMPANIES www.st.com TDA7297 9/9 ...