PDF《STPA002》

This is information on a product in full production.

September

2013 DocID024368 Rev

3 1/24 STPA002

4 x

52 W quad bridge power amplifier with low voltage operation Datasheet - production data Features ? High output power capability: C

4 x

52 W/4 Ω max. C

4 x

30 W/4 Ω @ 14.4 V,

1 kHz,

10 % C

4 x

85 W/2 Ω max. C

4 x

55 W/2 Ω @ 14.4V,

1 kHz,

10 % ? MOSFET output power stage ? Stop-start and hybrid engines compliant ? Excellent

2 ? driving capability ? Hi-Fi class distortion ? Low output noise ? Standby function and mute function ? Automute at min. supply voltage detection ? Low external component count: C Internally fixed gain (26 dB) C No external compensation C No bootstrap capacitors ? Protections: C Output short circuit to GND, to Vs, across the load C Very inductive loads C Overrating chip temperature with soft thermal limiter C Output DC offset detection C Load dump voltage C Fortuitous open GND C Reverse battery C ESD Description The STPA002 is a MOSFET class AB audio power amplifier, designed for high-power car radio. In addition to the outstanding output current capability and distortion performance, the STPA002 is extremely robust against several kinds of fortuitous misconnections. It is compliant to the most recent OEM specifications for low voltage operation in start- stop vehicles, and can sustain hybrid vehicles battery transitions. It includes a DC offset detector and, in Flexiwatt27 package, a clipping detector. '

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03 Flexiwatt25 Flexiwatt27 Table 1. Device summary Order code Package Packing STPA002OD-4WX Flexiwatt25 (with OD) Tube STPA002CD-48X Flexiwatt27 (with CD) Tube www.st.com Contents STPA002 2/24 DocID024368 Rev

3 Contents

1 Overview

5 1.1 Block diagram

5 1.2 Application circuits

6 2 Pin description

7 3 Electrical specifications

9 3.1 Absolute maximum ratings

9 3.2 Thermal data

9 3.3 Electrical characteristics

9 4 Electrical characteristics typical curves

12 5 General information

15 5.1 Operation

15 5.2 Battery variations

16 5.2.1 Low voltage operation

16 5.2.2 Cranks

16 5.2.3 Advanced battery management (hybrid vehicles)17 5.3 Protections

18 5.3.1 Short circuits and open circuit operation

18 5.3.2 Over-voltage and load dump protection

18 5.3.3 Thermal protection

18 5.4 Warnings

19 5.4.1 DC offset detection (OD pin)19 5.4.2 Clipping detection and diagnostics (CD-DIAG pin)19 5.5 Heat sink definition

20 6 Package information

21 7 Revision history

23 DocID024368 Rev

3 3/24 STPA002 List of tables

3 List of tables Table 1. Device summary

1 Table 2. Pin functions

8 Table 3. Absolute maximum ratings

9 Table 4. Thermal data.9 Table 5. Electrical characteristics

9 Table 6. Document revision history.23 List of figures STPA002 4/24 DocID024368 Rev

3 List of figures Figure 1. Block diagram

5 Figure 2. Standard test and application circuit (Flexiwatt25)6 Figure 3. Standard test and application circuit (Flexiwatt27)6 Figure 4. Pin connections (top view)7 Figure 5. Quiescent current vs. supply voltage

12 Figure 6. Output power vs. supply voltage (4 Ω)12 Figure 7. Output power vs. supply voltage (2 Ω)12 Figure 8. Distortion vs. output power (4 Ω)12 Figure 9. Distortion vs. output power (2 Ω)12 Figure 10. Distortion vs. frequency (4 Ω)12 Figure 11. Distortion vs. frequency (2 Ω)13 Figure 12. Distortion vs. output power (4 Ω, Vs =

6 V)13 Figure 13. Distortion vs. output power (2 Ω, Vs =

6 V)13 Figure 14. Supply voltage rejection vs. frequency