TDA7374BV STMicroelectronics, TDA7374BV Datasheet

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TDA7374BV

Manufacturer Part Number
TDA7374BV
Description
IC AMP AUDIO PWR 21W MULTIWATT15
Manufacturer
STMicroelectronics
Type
Class ABr
Datasheet

Specifications of TDA7374BV

Output Type
2-Channel (Stereo)
Max Output Power X Channels @ Load
21W x 2 @ 4 Ohm
Voltage - Supply
8 V ~ 18 V
Features
Depop, Short-Circuit and Thermal Protection, Standby
Mounting Type
Through Hole
Package / Case
Multiwatt-15 (Vertical, Bent and Staggered Leads)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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Part Number:
TDA7374BV
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Features
Protections
Table 1.
June 2008
Minimum external component count
No bootstrap capacitors
No Boucherot cells
Clip detector output
High output power
Fixed gain
Very low stand-by current (1 µA typ)
No switch on/off noise
Output AC/DC short circuit to GND and to V
Very inductive loads
Overrating chip temperature
Load dump voltage
Fortuitous open GND
Reverse battery
ESD
TDA7374BV
Order code
Device summary
Dual bridge audio amplifier for car radio
Multiwatt 15
S
Package
Rev 4
Description
The TDA7374 is a class AB audio dual bridge
power amplifier in Multiwatt package designed for
car radio applications.
Thanks to the fully complementary PNP/NPN
output configuration the high power performances
of the TDA7374 are obtained without bootstrap
capacitors.
Multiwatt 15
Packing
Tube
TDA7374
www.st.com
1/19
1

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TDA7374BV Summary of contents

Page 1

... Fortuitous open GND ■ Reverse battery ■ ESD Table 1. Device summary Order code TDA7374BV June 2008 Dual bridge audio amplifier for car radio Description S The TDA7374 is a class AB audio dual bridge power amplifier in Multiwatt package designed for car radio applications. Thanks to the fully complementary PNP/NPN ...

Page 2

Contents Contents 1 Block diagram and pins connections diagram . . . . . . . . . . . . . . . . . . . . 5 2 Electrical specifications . . . . . . . ...

Page 3

TDA7374 List of tables Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 4

List of figures List of figures Figure 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 5

TDA7374 1 Block diagram and pins connections diagram Figure 1. Block diagram Figure 2. Pin connection (top view) Block diagram and pins connections diagram 5/19 ...

Page 6

Electrical specifications 2 Electrical specifications 2.1 Absolute maximum ratings Table 2. Absolute maximum ratings Symbol V DC supply voltage S V Operating supply voltage OP V Peak supply voltage ( ms) PEAK I Output peak current (not rep. ...

Page 7

TDA7374 2.3 Electrical characteristcs Table 4. Electrical characteristcs (Refer to the test circuit; V specified) Symbol Parameter V Supply range S Total quiescent drain current Output power O d Distortion CT Cross talk R Input impedance IN ...

Page 8

Electrical specifications Figure 3. Test and application circuit Figure 4. Printed board and component layout of the 8/19 TDA7374 Figure 3. ...

Page 9

TDA7374 2.4 Electrical characteristics curves Figure 5. Quiescent drain current vs. supply voltage Figure 7. Output power vs. supply voltage Figure 9. Output power vs. frequency Electrical specifications Figure 6. Quiescent output voltage vs. supply voltage Figure 8. Distortion vs. ...

Page 10

Electrical specifications Figure 11. Cross-talk vs. frequency Figure 13. Stand-by attenuation vs. threshold voltage Figure 15. Clipping detector average current (pin 10) vs. distortion 10/19 Figure 12. En input vs. Rg Figure 14. Stand-by attenuation vs. input voltage Figure 16. ...

Page 11

TDA7374 3 Output stage The fully complementary output stage was made possible by the development of a new component: the ST exclusive power ICV PNP. A novel design based upon the connection shown in exploitation of its possibilities. Figure 17. ...

Page 12

Output stage 3.3 Other outstanding characteristics 3.3.1 Clipping detector output The TDA7374 is equipped with an internal circuit able to detect the output stage saturation providing a proper current sinking into a open collector output (pin 10) when a certain ...

Page 13

TDA7374 3.4 Built-in protection systems 3.4.1 Full protection of device and loudspeakers against AC/DC short circuits (to Gnd Reliable and safe operation in presence of all kinds of short circuit involving the outputs is assured by a built-in ...

Page 14

Output stage 3.4.4 Open ground When the radio is in the ON condition and the ground is accidentally opened, a standard audio amplifier will be damaged. On the TDA7374 protection diodes are included to avoid any damage. 3.4.5 Inductive load ...

Page 15

TDA7374 3.5 Clipping detector Figure 23 shows an application using the TDA7374 in combination with the STM audioprocessor TDA7302. The output clipping is recognized by the microprocessor (in this application it is simulated by a PC). The detailed way to ...

Page 16

Output stage 3.6.1 General Information In the application shown in compatible. Control is accomplished by serial bus (S-bus or I through the PC parallel port. The PC simulates the behaviour of the microprocessor in a real application (for example in ...

Page 17

TDA7374 4 Package information In order to meet environmental requirements, ST (also) offers these devices in ECOPACK® packages. ECOPACK® packages are lead-free. The category of second Level Interconnect is marked on the package and on the inner box label, in ...

Page 18

Revision history 5 Revision history Table 5. Document revision history Date 12-Oct-1999 30-Jun-2008 18/19 Revision 3 Initial release. Document reformatted. 4 Added Table 1: Device Added ECOPACK description in Changes summary. Section 4: Package information. TDA7374 ...

Page 19

... TDA7374 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. ...

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