© Koninklijke Philips Electronics N.V. 2004

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.

Date of release: 22 April 2004

Document order number: 9397 750 13023

Published in The Netherlands

Philips Semiconductors

TDA8939

Zero dead time Class-D 7.5 A power comparator

23. Contents

1

General description . . . . . . . . . . . . . . . . . . . . . . 1

2

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

3

Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

4

Quick reference data . . . . . . . . . . . . . . . . . . . . . 2

5

Ordering information . . . . . . . . . . . . . . . . . . . . . 2

6

Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3

7

Pinning information . . . . . . . . . . . . . . . . . . . . . . 4

7.1

Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

7.2

Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4

8

Functional description . . . . . . . . . . . . . . . . . . . 5

8.1

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

8.2

Protections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

8.3

Interfacing between controller and the TDA8939 .

6

8.3.1

Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

8.3.2

Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

8.3.3

Reference voltages . . . . . . . . . . . . . . . . . . . . . . 7

8.4

Start-up timing . . . . . . . . . . . . . . . . . . . . . . . . . 7

9

Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 8

10

Thermal characteristics. . . . . . . . . . . . . . . . . . . 8

11

Static characteristics. . . . . . . . . . . . . . . . . . . . . 9

12

Dynamic characteristics . . . . . . . . . . . . . . . . . 10

13

Output power estimation. . . . . . . . . . . . . . . . . 12

14

Application information. . . . . . . . . . . . . . . . . . 13

15

Test information . . . . . . . . . . . . . . . . . . . . . . . . 14

15.1

Quality information . . . . . . . . . . . . . . . . . . . . . 14

16

Package outline . . . . . . . . . . . . . . . . . . . . . . . . 15

17

Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

17.1

Introduction to soldering surface mount

packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

17.2

Reflow soldering . . . . . . . . . . . . . . . . . . . . . . . 16

17.3

Wave soldering . . . . . . . . . . . . . . . . . . . . . . . . 16

17.4

Manual soldering . . . . . . . . . . . . . . . . . . . . . . 17

17.5

Package related soldering information . . . . . . 17

18

Revision history . . . . . . . . . . . . . . . . . . . . . . . . 19

19

Data sheet status . . . . . . . . . . . . . . . . . . . . . . . 20

20

Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

21

Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

22

Contact information . . . . . . . . . . . . . . . . . . . . 20