List of figures TDA7851L
4/15 Doc ID 022520 Rev 3
List of figures
Figure 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 2. Application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 3. Pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 4. Quiescent current vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 5. Output power vs. supply voltage (R
L
= 4 ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 6. Output power vs. supply voltage (R
L
= 2 ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 7. Distortion vs. output power (R
L
=4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 8. Distortion vs. output power (R
L
=2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 9. Distortion vs. frequency (R
L
= 4 ). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 10. Distortion vs. frequency (R
L
= 2 ). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 11. Crosstalk vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 12. Supply voltage rejection vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 13. Output attenuation vs. supply voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 14. Power dissipation and efficiency vs. output power (R
L
= 4 , SINE) . . . . . . . . . . . . . . . . . 10
Figure 15. Power dissipation and efficiency vs. output power (R
L
= 2 , SINE) . . . . . . . . . . . . . . . . . 10
Figure 16. Power dissipation vs. output power (R
L
= 4 , audio program simulation) . . . . . . . . . . . . 11
Figure 17. Power dissipation vs. output power (R
L
= 2 , audio program simulation) . . . . . . . . . . . . 11
Figure 18. ITU R-ARM frequency response, weighting filter for transient pop. . . . . . . . . . . . . . . . . . . 11
Figure 19. Flexiwatt25 mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
TDA7851L Block diagram and application circuit
Doc ID 022520 Rev 3 5/15
1 Block diagram and application circuit
1.1 Block diagram
Figure 1. Block diagram
1.2 Application circuit
Figure 2. Application circuit
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Pin description TDA7851L
6/15 Doc ID 022520 Rev 3
2 Pin description
2.1 Pin connection
Figure 3. Pin connection (top view)
2.2 Thermal data
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Table 2. Thermal data
Symbol Parameter Value Unit
R
th j-case
Thermal resistance junction-to-case Max 1 °C/W

TDA7851L

Mfr. #:
Manufacturer:
STMicroelectronics
Description:
Audio Amplifiers 4 x 50 W MOSFET Quad Bridge Pwr Amplifier
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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