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STA540 Scheda tecnica(PDF) 2 Page - STMicroelectronics

Il numero della parte STA540
Spiegazioni elettronici  4 x 13 W dual/quad power amplifier
PDF  25 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA540 Scheda tecnica(HTML) 2 Page - STMicroelectronics

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Contents
STA540
2/25
Doc ID 13907 Rev 6
Contents
1
Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2
Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3
Standard application circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4
Electrical characteristics curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5
Thermal information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.1
Heatsink specification examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.1.1
Rth_HS calculation for 4 single-ended channels . . . . . . . . . . . . . . . . . . . 15
5.1.2
Rth_HS calculation for 2 single-ended channels plus 1 BTL channel . . . 15
5.1.3
Calculations using music power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6
Practical information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.1
Highly flexible amplifier configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.2
Easy single-ended to bridge transition . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.3
Internally fixed gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.4
Silent turn on/off and muting/standby function . . . . . . . . . . . . . . . . . . . . . 17
6.5
Driving circuit for standby mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.6
Output stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.6.1
Rail-to-rail output voltage swing without bootstrap capacitors . . . . . . . . 18
6.6.2
Absolute stability without external compensation . . . . . . . . . . . . . . . . . 18
6.7
Built–in protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6.7.1
Diagnostic facilities (pin 10) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6.7.2
Short-circuit protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6.7.3
Clipping detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.7.4
Thermal shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20



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