NXP Semiconductors TFA9810 7. Pinning information

TFA9810_3 © NXP B.V. 2008. All rights reserved.

Product data sheet Rev. 03 — 20 February 2008 4 of 29

NXP Semiconductors TFA9810

Audio ampliﬁer 2 x 12 W

7. Pinning information

7.1 Pinning

The SO32 package has four corner leads. These leads (1, 16, 17, and 32) are internally

connected to the die pad and must be connected to VSSA in the application. Together with

the applied copper area on the Printed Circuit Board (PCB) these leads determine the

ambient temperature, which affects the thermal resistance of the junction.

7.2 Pin description

Fig 2. Pin conﬁguration

TFA9810

SO32

VSSD(HW) VSSD(HW)

IN1P STAB1

IN1N VSSP1

VDDA1 BOOT1N

VSSA1 OUT1N

SO/OL BOOT1P

ENABLE OUT1P

CDELAY VDDP1

n.c. VDDP2

DIAG OUT2P

TEST BOOT2P

VSSA2 OUT2N

VDDA2 BOOT2N

IN2N VSSP2

IN2P STAB2

VSSD(HW) VSSD(HW)

010aaa017

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

18

17

20

19

22

21

24

23

26

25

32

31

30

29

28

27

Table 3. Pin description

Symbol Pin Description

VSSD(HW) 1, 16, 17,

32 Negative digital supply voltage and handle wafer

IN1P 2 Positive input comparator channel 1

IN1N 3 Negative input comparator channel 1

VDDA1 4 Positive analog supply voltage channel 1

VSSA1 5 Negative analog supply voltage channel 1

SO/OL 6 SO/OL input enables self-oscillating / open-loop conﬁguration

ENABLE 7 Enable input to switch between SLEEP and OPERATING

CDELAY 8 CDELAY input determines the switch on/off timing

n.c. 9 Not connected

DIAG 10 Diagnostic output; open drain

TEST 11 Test signal input; for testing purposes only

VSSA2 12 Negative analog supply voltage channel 2

VDDA2 13 Positive analog supply voltage channel 2

Contents

Main 1. General description 2. Features 4. Quick reference data TFA9810 Stereo full-bridge audio amplier 2 x 12 W Rev. 03 20 February 2008 Product data sheet Audio amplier 2 x 12 W = 25 5. Ordering information = 12 V; f = 550 kHz; Figure 33 unless otherwise specied Product data sheet Rev. 03 20 February 2008 3 of 29 6. Block diagram Fig 1. Block diagram 7. Pinning information 7.1 Pinning Fig 2. Pin conguration 7.2 Pin description 8. Functional description 8.1 General 8.2 Interfacing 8.3 Input comparators 8.3.1 Operating in self-oscillating conguration 8.3.2 Operating in open-loop conguration 8.4 Diagnostic 8.5 Protections Page Product data sheet Rev. 03 20 February 2008 8 of 29 NXP Semiconductors TFA9810 9. Internal circuitry Fig 4. Internal circuitry 0001 8.6 Start-up sequence Fig 3. Start-up sequence Product data sheet Rev. 03 20 February 2008 9 of 29 NXP Semiconductors TFA9810 Fig 5. Internal circuitry 0002 Fig 7. Internal circuitry 0004 Fig 6. Internal circuitry 0003 NXP Semiconductors TFA9810 Fig 8. Internal circuitry 0005 Fig 10. Internal circuitry 0007 Fig 9. Internal circuitry 0006 Fig 11. Internal circuitry 0008 Fig 12. Internal circuitry 0009 Fig 14. Internal circuitry 0011 Fig 13. Internal circuitry 0010 Audio amplier 2 x 12 W Fig 15. Internal circuitry 0012 Fig 18. Internal circuitry 0015 Fig 16. Internal circuitry 0013 Fig 17. Internal circuitry 0014 Fig 19. Internal circuitry 0016 Fig 20. Internal circuitry 0017 Fig 22. Internal circuitry 0019 Fig 21. Internal circuitry 0018 10. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). 11. Thermal characteristics 12. Characteristics = 25 12.1 Static characteristics In accordance with the Absolute Maximum Rating System (IEC 60134). 12.2 Dynamic characteristics = 25 = 12 V; f = 550 kHz; Figure 33 unless otherwise specied = 12 V; R 12.3 AC characteristics measured in a typical application = 25 = 8 = 25 = 12 V; R 13. Quality specication 14. Application information 14.1 Output power estimation 14.2 Output current limiting ------------------------------------------------------3 A +()+ DSon Rs (1) RL = 4 (2) RL = 6 (3) RL= 8 14.3 Speaker conguration and impedance 14.4 Differential input 14.5 Single-ended input 14.6 Curves measured in a typical application Fig 29. Input conguration for single-ended input Fig 30. Gain as a function of frequency VP= 12 V, Vi = 100 mV 14.7 Typical application diagram TFA9810 VP=12V,R Fig 32. Total harmonic distortion as a function of output power Fig 31. Total harmonic distortion + noise as a function of frequency VP=12V,R Fig 33. Typical application diagram TFA9810 Fig 34. Typical application diagram TFA9810 with externally adjusted switch-on time 14.8 Typical application: bill of materials 14.9 Snubber network 15. Test information 16. Package outline Fig 35. Package outline SOT287-1 (SO23) SO32: plastic small outline package; 32 leads; body width 7.5 mm SOT287-1 17. Revision history 18. Legal information 18.1 Data sheet status 18.2 Denitions 18.3 Disclaimers 18.4 Trademarks 20. Contents