TDA8920B NXP Semiconductors, TDA8920B Datasheet - Page 34

• Manufacturer Part Number: TDA8920B
• Description: The TDA8920B is a high efficiency class-D audio power amplifier with very lowdissipation
• Manufacturer: NXP Semiconductors

Philips Semiconductors
23. Contents
1
2
3
4
5
6
7
7.1
7.2
8
8.1
8.2
8.3
8.3.1
8.3.2
8.3.3
8.3.4
8.4
9
10
11
12
12.1
12.2
12.3
13
13.1
13.2
13.3
13.4
13.5
13.6
13.7
13.8
13.9
14
14.1
15
16
16.1
16.2
16.2.1
16.2.2
16.3
16.3.1
General description . . . . . . . . . . . . . . . . . . . . . . 1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Quick reference data . . . . . . . . . . . . . . . . . . . . . 2
Ordering information . . . . . . . . . . . . . . . . . . . . . 2
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pinning information . . . . . . . . . . . . . . . . . . . . . . 4
Functional description . . . . . . . . . . . . . . . . . . . 5
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 11
Thermal characteristics. . . . . . . . . . . . . . . . . . 12
Static characteristics. . . . . . . . . . . . . . . . . . . . 12
Dynamic characteristics . . . . . . . . . . . . . . . . . 13
Application information. . . . . . . . . . . . . . . . . . 15
Test information . . . . . . . . . . . . . . . . . . . . . . . . 26
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 27
Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pulse width modulation frequency . . . . . . . . . . 8
Protections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
OverTemperature Protection (OTP) . . . . . . . . . 8
OverCurrent Protection (OCP) . . . . . . . . . . . . . 8
Window Protection (WP). . . . . . . . . . . . . . . . . . 9
Supply voltage protections . . . . . . . . . . . . . . . 10
Differential audio inputs . . . . . . . . . . . . . . . . . 11
Switching characteristics . . . . . . . . . . . . . . . . 13
Stereo and dual SE application . . . . . . . . . . . 14
Mono BTL application . . . . . . . . . . . . . . . . . . . 15
BTL application . . . . . . . . . . . . . . . . . . . . . . . . 15
MODE pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Output power estimation. . . . . . . . . . . . . . . . . 16
External clock . . . . . . . . . . . . . . . . . . . . . . . . . 16
Heatsink requirements . . . . . . . . . . . . . . . . . . 17
Output current limiting. . . . . . . . . . . . . . . . . . . 18
Pumping effects . . . . . . . . . . . . . . . . . . . . . . . 19
Application schematic . . . . . . . . . . . . . . . . . . . 20
Curves measured in reference design . . . . . . 22
Quality information . . . . . . . . . . . . . . . . . . . . . 26
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Through-hole mount packages . . . . . . . . . . . . 29
Soldering by dipping or by solder wave . . . . . 29
Manual soldering . . . . . . . . . . . . . . . . . . . . . . 29
Surface mount packages . . . . . . . . . . . . . . . . 29
Reflow soldering . . . . . . . . . . . . . . . . . . . . . . . 29
16.3.2
16.3.3
16.4
17
18
19
20
21
22
© Koninklijke Philips Electronics N.V. 2005
All rights are reserved. Reproduction in whole or in part is prohibited without the prior
written consent of the copyright owner. The information presented in this document does
not form part of any quotation or contract, is believed to be accurate and reliable and may
be changed without notice. No liability will be accepted by the publisher for any
consequence of its use. Publication thereof does not convey nor imply any license under
patent- or other industrial or intellectual property rights.
Published in The Netherlands
Revision history . . . . . . . . . . . . . . . . . . . . . . . 32
Data sheet status. . . . . . . . . . . . . . . . . . . . . . . 33
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Contact information . . . . . . . . . . . . . . . . . . . . 33
Wave soldering. . . . . . . . . . . . . . . . . . . . . . . . 30
Manual soldering . . . . . . . . . . . . . . . . . . . . . . 30
Package related soldering information . . . . . . 31
2
100 W class-D power amplifier
TDA8920B
Date of release: 07 November 2005
Document number: TDA8920B_2