TDA7850A ,Quad BTP output with HSD, offset detection , stand-by and mute inputsFeatures■ High output power capability:–4 x 50 W/4 max.–4 x 30 W/4 @ 14.4 V, 1 kHz, 10 %–4 x 80 ..
TDA7850H ,Quad BTL output with HSD/offset detection, stand-by and mute inputsFeatures■ High output power capability:–4 x 50 W/4 max.–4 x 30 W/4 @ 14.4 V, 1 kHz, 10 %–4 x 80 ..
TDA7851A ,Quad BTL output with stand-by and mute inputs, clip and offset detectionFeatures■ Multipower BCD technology■ High output power capability:–4 x 48 W/4 Max.–4 x 28 W/4 @ ..
TDA7851L ,Quad BTL output with stand-by and mute inputs, clip detectionFeatures■ Multipower BCD technology■ High output power capability:–4 x 48 W/4 Max.–4 x 28 W/4 @ ..
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THS4502IDGNR ,High-Speed Fully-Differential Amplifiers SLOS352E–APRIL 2002–REVISED OCTOBER 2011ABSOLUTE
THS4503IDGK ,High-Speed Fully-Differential AmplifiersMAXIMUM RATINGS(1)over operating free-air temperature range unless otherwise notedUNITSupply voltag ..
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TDA7850A
Quad BTP output with HSD, offset detection , stand-by and mute inputs
September 2013 Doc ID 13998 Rev 5 1/16
TDA7850A4 x 50 W MOSFET quad bridge power amplifier
Datasheet production data
Features High output power capability:
–4 x 50 W/4 max.
–4 x 30 W/4 @ 14.4 V, 1 kHz, 10 %
–4 x 80 W/2 max.
–4 x 55 W/2 @ 14.4 V, 1 kHz, 10 % MOSFET output power stage Excellent 2 driving capability Hi-fi class distortion Low output noise Standby function Mute function Automute at min. supply voltage detection Low external component count: Internally fixed gain (26 dB) No external compensation No bootstrap capacitors On board 0.35 A high side driver Protections: Output short circuit to GND, to Vs, across
the load Very inductive loads Overrating chip temperature with soft
thermal limiter Output DC offset detection Load dump voltage Fortuitous open gnd Reversed battery
–ESD
DescriptionThe TDA7850A is a breakthrough MOSFET
technology class AB audio power amplifier in
Flexiwatt27 package designed for high power car
radio. The fully complementary P-Channel/N-
Channel output structure allows a rail to rail
output voltage swing which, combined with high
output current and minimized saturation losses
sets new power references in the car-radio field,
with unparalleled distortion performances.
The TDA7850A integrates a DC offset detector.
Table 1. Device summary
Contents TDA7850A2/16 Doc ID 13998 Rev 5
Contents Block diagram and application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . 51.1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Standard test and application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.4 Electrical characteristic curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Application hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124.1 SVR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.2 Input stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.3 Standby and muting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.4 DC offset detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.5 Heatsink definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
TDA7850A List of tables
Doc ID 13998 Rev 5 3/16
List of tables
Table 1. Device summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table 2. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 3. Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 4. Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 5. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
List of figures TDA7850A
4/16 Doc ID 13998 Rev 5
List of figures
Figure 1. Block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 2. Standard test and application circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 3. Pin connections (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 4. Quiescent current vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 5. Output power vs. supply voltage (RL = 4 ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 6. Output power vs. supply voltage (RL = 2 ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 7. Distortion vs. output power (RL = 4 ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 8. Distortion vs. output power (RL = 2 ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 9. Distortion vs. frequency (RL = 4 ). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 10. Distortion vs. frequency (RL = 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 (RL = 4 , SINE) . . . . . . . . . . . . . . . . . 11
Figure 15. Power dissipation and efficiency vs. output power (RL = 2 , SINE) . . . . . . . . . . . . . . . . . 11
Figure 16. Power dissipation vs. output power (RL = 4, audio program simulation) . . . . . . . . . . . . . 11
Figure 17. Power dissipation vs. output power (RL = 2, audio program simulation) . . . . . . . . . . . . . 11
Figure 18. ITU R-ARM frequency response, weighting filter for transient pop. . . . . . . . . . . . . . . . . . . 11
Figure 19. Flexiwatt27 (horizontal) mechanical data and package dimensions. . . . . . . . . . . . . . . . . . 13
Figure 20. Flexiwatt27 (vertical) mechanical data and package dimensions. . . . . . . . . . . . . . . . . . . . 14
TDA7850A Block diagram and application circuit
Doc ID 13998 Rev 5 5/16 Block diagram and application circuit
1.1 Block diagram
Figure 1. Block diagram
1.2 Standard test and application circuit
Figure 2. Standard test and application circuit
Pin description TDA7850A
6/16 Doc ID 13998 Rev 5
2 Pin description
Figure 3. Pin connections (top view)
TDA7850A Electrical specifications
Doc ID 13998 Rev 5 7/16
3 Electrical specifications
3.1 Absolute maximum ratings
3.2 Thermal data
3.3 Electrical characteristics
Refer to the test and application diagram, VS = 14.4 V; RL = 4 ; Rg = 600 ; f = 1 kHz;
Tamb = 25 °C; unless otherwise specified.
Table 2. Absolute maximum ratings
Table 3. Thermal data
Table 4. Electrical characteristics
Electrical specifications TDA7850A
8/16 Doc ID 13998 Rev 5
Table 4. Electrical characteristics (continued)
