Datasheet

ManualsBrandsSTMICROELECTRONICS ManualsLinear ICsLinear IC - Audio amplifier 2-channel (stereo) Class AB PowerSO 36

September 2013 Doc ID 10260 Rev 4 1/14

TDA7376PD

2 x 35 W power amplifier for car radio

Features

■ High output power capability:

– 2 x 40 W max./4 

–2 x 35 W/4  EIAJ

–2 x 25 W/4  @14.4 V, 1 kHz, 10 %

–2 x 25 W/2  @14.4 V, 1 kHz, 10 %

■ 2  driving

■ Differential inputs

■ Minimum external components count

■ Internally fixed gain (26 dB)

■ Mute function (CMOS compatible)

■ Automute at minimum supply voltage detection

■ Standby function

■ No audible pop during mute and standby

operations

■ Clipping detector with programmable distortion

threshold

■ Protections:

– Short circuit (out to ground, out to supply

voltage, across the load)

– Overrating chip temperature with soft

thermal limiter

– Load dump voltage

– Fortuitous open ground

– Loudspeaker DC current

–ESD

Description

The TDA7376PD is a new technology dual bridge

audio amplifier in PowerSO36 package designed

for car radio applications.

Thanks to the fully complementary PNP/NPN

output stage configuration the TDA7376PD

delivers a rail-to-rail voltage swing with no need of

bootstrap capacitors.

Differential input pairs, that will accept either

single ended or differential input signals,

guarantee high noise immunity making the device

suitable for both car radio and car boosters

applications.

The audio mute control, that attenuates the output

signal of the audio amplifiers, suppresses pop

on - off transients and cuts any noises coming

from previous stages. The standby control, that

de-biases the amplifiers, reduces the cost of the

power switch. The on-board programmable

distortion detector allows compression facility

whenever the amplifier is overdriven, so limiting

the distortion at any levels inside the presettable

range.

PowerSO36 (Slug up)

Table 1. Device summary

Order code Package Packing

TDA7376PD PowerSO36 Tube

TDA7376PDTR PowerSO36 Tape and reel

www.st.com

Summary of content (14 pages)

PAGE 1
TDA7376PD 2 x 35 W power amplifier for car radio Features ■ High output power capability: – 2 x 40 W max./4  – 2 x 35 W/4  EIAJ – 2 x 25 W/4  @14.4 V, 1 kHz, 10 % – 2 x 25 W/2  @14.
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Contents TDA7376PD Contents 1 Block and pins connection diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.3 Electrical characteristics . . . . . . . . . . . . .
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TDA7376PD List of tables List of tables Table 1. Table 2. Table 3. Table 4. Table 5. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Electrical characteristics .
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List of figures TDA7376PD List of figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. Figure 13. Figure 14. Figure 15. Figure 16. Figure 17. Figure 18. 4/14 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pins connection diagram (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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TDA7376PD 1 Block and pins connection diagrams Block and pins connection diagrams Figure 1. Block diagram Figure 2.
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Electrical specifications TDA7376PD 2 Electrical specifications 2.1 Absolute maximum ratings Table 2. Absolute maximum ratings Symbol VOP Vs Vpeak IO Ptot Tstg, Tj 2.
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TDA7376PD Table 4. Symbol Electrical characteristics (continued) Parameter RIN Input impedance GV Voltage gain Test condition Min. Typ. Max.
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Electrical specifications TDA7376PD 2.4 Electrical characteristics curves Figure 3. Clip detector threshold vs. THD set. Figure 4. voltage RL = 4 Ω VS = 14.4V RL = 4 Ω f = 1KHz Figure 5. 45 Output power vs. supply voltage (THD = 1 %) Po (W) 40 RL= 2 Ω f= 1 KHz 35 THD= 1 % 30 25 20 RL= 4 Ω 15 10 5 8 9 Figure 7. 10 Quiescent current vs. supply voltage 11 12 13 14 Vs (V) 15 16 17 EIAJ power vs. supply voltage 18 Figure 6. 55 50 45 40 35 30 25 20 15 10 5 Output power vs.
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TDA7376PD Figure 9. 10 Electrical specifications THD vs. output power (RL = 4 ) THD(%) Figure 10. THD vs. output power (RL = 24 ) 10 THD (%) Vs = 14.4 V Vs= 14.4 V RL = 4 Ω RL=2Ω 1 1 f = 10 KHz f= 10 KHz 0.1 0.1 f= 1 KHz f = 1 KHz 0.01 0.1 1 Po (W) 10 0.01 0.1 1 Po (W) 10 Figure 11. Dissipated power and efficiency vs. Figure 12. SVR vs. frequency output power VS = 14.4V RL = 4 Ω f = 1KHz Ri = 0 Ω Ri = 600 Ω VS = 14.4V RL = 4 Ω Vr = 1Vrms f (Hz) Figure 13. CMRR vs.
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Electrical specifications 2.5 TDA7376PD Test and application circuits Figure 15. Differential inputs test and application circuit Figure 16.
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TDA7376PD Electrical specifications Figure 17.
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Package information 3 TDA7376PD Package information In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark. Figure 18. PowerSO36 (slug up) mechanical data and package dimensions DIM. A A2 A4 A5 a1 b c D D1 D2 E E1 E2 E3 E4 e e3 G H h L N s MIN. 3.270 3.100 0.800 0.030 0.220 0.
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TDA7376PD 4 Revision history Revision history Table 5. Document revision history Date Revision Changes 13-Dec-2003 1 Initial release. 16-Apr-2004 2 Corrected package drawing. 11-Dec-2009 3 Document reformatted. Updated Section 3: Package information on page 12. 17-Sep-2013 4 Updated Disclaimer.
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TDA7376PD Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale.