TDA7850 STMicroelectronics, TDA7850 Datasheet
TDA7850
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TDA7850 Summary of contents
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... 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 TDA7850 integrates a DC offset detector. Package Flexiwatt25 (Vertical) Flexiwatt25 (Horizontal Rev 5 ...
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... Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.4 Electrical characteristic curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 4 Application hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.1 SVR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.2 Input stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.3 Standby and muting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.4 DC offset detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.5 Heatsink definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 5 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 2/18 TDA7850 ...
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... TDA7850 List of tables Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Table 2. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Table 3. Thermal data Table 4. Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Table 5. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 List of tables 3/18 ...
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... ITU R-ARM frequency response, weighting filter for transient pop Figure 21. Flexiwatt25 (vertical) mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . 15 Figure 22. Flexiwatt25 (horizontal) mechanical data and package dimensions 4/18 Figure Figure 4Ω 2Ω 4Ω). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Ω). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Ω 2Ω 4Ω, audio program simulation 2Ω, audio program simulation TDA7850 = 4Ω, SINE 2Ω, SINE ...
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... TDA7850 1 Block diagram and application circuit 1.1 Block diagram Figure 1. Block diagram IN1 IN2 IN3 IN4 1.2 Standard test and application circuit Figure 2. Standard test and application circuit ST-BY MUTE IN1 IN2 C2 0.1μF IN3 C3 0.1μF IN4 C4 0.1μF Vcc1 ...
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... Vertical IN2 S-GND IN4 IN3 AC-GND OUT3+ P-GND3 OUT3 OUT4+ MUTE OUT4- P-GND4 HSD 25 D94AU159A TAB 1 P-GND2 OUT2- ST-BY OUT2 OUT1- P-GND1 OUT1+ SVR IN1 IN2 Horizontal S-GND IN4 IN3 AC-GND OUT3+ P-GND3 OUT3 OUT4+ MUTE OUT4- P-GND4 HSD 25 D06AU1655 TDA7850 ...
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... TDA7850 3 Electrical specifications 3.1 Absolute maximum ratings Table 2. Absolute maximum ratings Symbol V Operating supply voltage supply voltage S (DC) V Peak supply voltage (for ms) S (pk) Output peak current I repetitive (duty cycle Hz) O non repetitive (t = 100 μs) P Power dissipation T tot T Junction temperature j T Storage temperature stg 3 ...
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... 15W 2Ω "A" Weighted kHz f = 100 Hz 1Vrms 0 kHz kHz 1.5 V ST- ST- 1 3.5 V ST-BY (Amp: ON) (Amp: OFF Oref (Amp: Play) (Amp: Mute) TDA7850 = 4 Ω 600 Ω kHz; g Min. Typ. Max. Unit 100 180 280 mA ±50 mV -10 +10 mV -10 + ± 0.006 0. ...
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... TDA7850 Table 4. Electrical characteristics (continued) (Refer to the test and application diagram °C; unless otherwise specified). amb Symbol Parameter V V automute threshold Muting pin current pin23 HSD section V Dropout voltage dropout I Current limits prot Offset detector (Pin 25) V Mute voltage for DC offset ...
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... Electrical specifications Figure 4. Components and top copper layer of the Figure 5. Bottom copper layer 10/18 Figure 2. Figure 2. TDA7850 ...
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... TDA7850 3.4 Electrical characteristic curves Figure 6. Quiescent current vs. supply voltage I d (mA) 200 190 ∞ 180 170 160 150 140 130 120 110 100 (V) Figure 8. Output power vs. supply voltage (R = 2Ω (W) 130 120 110 R = 2Ω KHz 100 (V) Figure 10. Distortion vs. output power (R = 2Ω ...
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... SINE) L η (%) Ptot (W) 180 90 η 80 160 70 140 60 120 50 100 tot AC00074 = 4Ω 600Ω g 100 1000 10000 f (Hz) voltage = 4Ω ref (V) vs. output power (R = 2Ω, SINE 14 η 2Ω KHz SINE (W) o TDA7850 100000 AC00071 9 10 AC00073 η (%) tot AC00075 ...
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... TDA7850 Figure 18. Power dissipation vs. output power (R = 4Ω, audio program simulation (W) tot 13 4Ω GAUSSIAN NOISE CLIP START (W) o Figure 20. ITU R-ARM frequency response, weighting filter for transient pop Output attenuation (dB -10 -20 -30 -40 -50 10 100 1000 Hz Figure 19. Power dissipation vs. output power ...
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... V/ms. 4.4 DC offset detector The TDA7850 integrates a DC offset detector to avoid that an anomalous DC offset on the inputs of the amplifier may be multiplied by the gain and result in a dangerous large offset on the outputs which may lead to speakers damage for overheating. The feature is enabled by the MUTE pin (according to table 3) and works with the amplifier unmuted and with no signal on the inputs ...
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... TDA7850 5 Package information In order to meet environmental requirements, ST (also) offers these devices in ECOPACK packages. ECOPACK is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK trademark. ECOPACK specifications are available at: www.st.com. ...
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... TDA7850 OUTLINE AND MECHANICAL DATA Flexiwatt25 (Horizontal) 7399733 A ...
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... TDA7850 6 Revision history Table 5. Document revision history Date 22-Nov-2006 27-Feb-2007 09-Oct-2007 12-Sep-2008 07-Nov-2008 Revision 1 Initial release. 2 Added Chapter 3.4: Electrical characteristic Updated the values for the dV 3 Added Figure 20 on page Updated Figure 2: Standard test and application Updated Section 4.4: DC offset detector ...
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