TFA9842J/N1,112 NXP Semiconductors, TFA9842J/N1,112 Datasheet

IC AMP AUDIO PWR 15W STER 9SIL

TFA9842J/N1,112

Manufacturer Part Number
TFA9842J/N1,112
Description
IC AMP AUDIO PWR 15W STER 9SIL
Manufacturer
NXP Semiconductors
Type
Class ABr
Datasheet
1.TFA9842JN1112.pdf (21 pages)

Specifications of TFA9842J/N1,112

Output Type
1-Channel (Mono) or 2-Channel (Stereo)
Package / Case
9-SIL (Bent and Staggered Leads)
Max Output Power X Channels @ Load
15W x 1 @ 8 Ohm; 7.5W x 2 @ 4 Ohm
Voltage - Supply
9 V ~ 26 V
Features
Depop, Mute, Short-Circuit and Thermal Protection, Standby
Mounting Type
Through Hole
Product
Class-AB
Output Power
7.5 W, 15 W
Available Set Gain
26 dB, 32 dB
Thd Plus Noise
0.1 %, 0.05 %
Operating Supply Voltage
17 V
Supply Current
60 mA
Maximum Power Dissipation
35 W
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Audio Load Resistance
8 Ohms
Minimum Operating Temperature
- 40 C
Supply Voltage (max)
26 V
Supply Voltage (min)
9 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
568-3453-5
935274136112
TFA9842J
1. General description
2. Features
3. Applications
The TFA9842J contains two identical audio power amplifiers. The TFA9842J can be
used as two Single-Ended (SE) channels with a fixed gain of 26 dB or one
Bridge-Tied Load (BTL) channel with a fixed gain of 32 dB.
The TFA9842J comes in a 9-pin DIL-bent-SIL (DBS9P) power package. The
TFA9842J is pin compatible with the TFA9841J and TFA9843J.
The TFA9842J contains a unique protection circuit that is solely based on multiple
temperature measurements inside the chip. This gives maximum output power for all
supply voltages and load conditions with no unnecessary audio holes. Almost any
supply voltage and load impedance combination can be made as long as thermal
boundary conditions (number of channels used, external heatsink and ambient
temperature) allow it.
TFA9842J
2-channel audio amplifier; SE: 1 W to 7.5 W; BTL: 2 W to 15 W
Rev. 01 — 26 April 2004
SE: 1 W to 7.5 W; BTL: 2 W to 15 W operation possibility
Soft clipping
Standby and mute mode
No on/off switching plops
Low standby current
High supply voltage ripple rejection
Outputs short-circuit protected to ground, supply and across the load
Thermally protected
Pin compatible with the TFA9841J and TFA9843J.
Television
PC speakers
Boom box
Mini and micro audio receivers.
Preliminary data

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TFA9842J/N1,112 Summary of contents

Page 1

General description The TFA9842J contains two identical audio power amplifiers. The TFA9842J can be used as two Single-Ended (SE) channels with a fixed gain one Bridge-Tied Load (BTL) channel with a fixed gain of 32 ...

Page 2

Philips Semiconductors 4. Quick reference data Table 1: Symbol Parameter stb P o THD G v SVRR 5. Ordering information Table 2: Type number TFA9842J DBS9P 9397 750 12013 Preliminary data 2-channel audio amplifier (2 ...

Page 3

Philips Semiconductors 6. Block diagram Fig 1. Block diagram. 7. Pinning information 7.1 Pinning Fig 2. Pin configuration. 9397 750 12013 Preliminary data 2-channel audio amplifi BTL IN1 60 k ...

Page 4

Philips Semiconductors 7.2 Pin description Table 3: Symbol IN2+ OUT2 CIV IN1+ GND SVR MODE OUT1 TAB 8. Functional description 8.1 Input configuration The input cut-off frequency is cut off SE application cut ...

Page 5

Philips Semiconductors • • • 8.2.1 Output power measurement The output power as a function of the supply voltage is measured on the output pins at THD = 10 %; see The maximum output power is limited by the supply ...

Page 6

Philips Semiconductors Standby — The current consumption is very low and the outputs are floating. The device is in standby mode when V Mute — The amplifier is DC-biased but not operational (no audio output). This allows the input coupling ...

Page 7

Philips Semiconductors 9. Limiting values Table 6: Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Symbol Parameter V supply voltage CC V input voltage I I repetitive peak output current ORM T storage temperature stg T ...

Page 8

Philips Semiconductors 12. Dynamic characteristics Table 9: Dynamic characteristics kHz amb L Symbol Parameter P output power o THD total harmonic distortion ...

Page 9

Philips Semiconductors BTL mV Fig 4. AC output voltage as function of mode selection voltage ( ...

Page 10

Philips Semiconductors ( THD = kHz SE. Fig 6. Output power as function of supply voltage ...

Page 11

Philips Semiconductors 10 THD N (%) SE. Fig 8. Total harmonic distortion-plus-noise as function of ...

Page 12

Philips Semiconductors 0 cs (dB 100 SE. Fig 10. Channel separation as function of frequency (no bandpass filter applied). 0 ...

Page 13

Philips Semiconductors 13. Application information 100 270 7.5 V BC547 2.2 F micro- BC547 controller 1.5 k Fig 12. Typical SE application diagram. 9397 750 12013 Preliminary data 2-channel audio amplifi ...

Page 14

Philips Semiconductors IN1 470 IN2 CIV MODE MICRO- CONTROLLER 22 F Fig 13. BTL application diagram. Remark: Because of switching inductive loads, the output voltage can rise beyond the maximum supply voltage high ...

Page 15

Philips Semiconductors Fig 14. Printed-circuit board layout (single-sided); components view. 13.1.2 Power supply decoupling Proper supply bypassing is critical for low-noise performance and high supply voltage ripple rejection. The respective capacitor location should be as close as possible to the ...

Page 16

Philips Semiconductors 8.4 W; see For T 150 This calculation is for an application at worst-case (stereo) sine-wave output signals. In practice music signals will be applied, which decreases the maximum power dissipation to ...

Page 17

Philips Semiconductors 15. Package outline DBS9P: plastic DIL-bent-SIL power package; 9 leads (lead length 12/11 mm); exposed die pad DIMENSIONS (mm are the original dimensions) (2) (1) (2) UNIT ...

Page 18

Philips Semiconductors 16. Soldering 16.1 Introduction to soldering through-hole mount packages This text gives a brief insight to wave, dip and manual soldering. A more in-depth account of soldering ICs can be found in our Data Handbook IC26; Integrated Circuit ...

Page 19

Philips Semiconductors 17. Revision history Table 12: Revision history Rev Date CPCN Description 01 20040426 - Preliminary data (9397 750 12013) 9397 750 12013 Preliminary data 2-channel audio amplifi BTL) Rev. 01 — 26 ...

Page 20

Philips Semiconductors 18. Data sheet status [1] Level Data sheet status Product status I Objective data Development II Preliminary data Qualification III Product data Production [1] Please consult the most recently issued data sheet before initiating or completing a design. ...

Page 21

Philips Semiconductors Contents 1 General description . . . . . . . . . . . . . . . . . . . . . . 1 2 Features . . . . . . . . . ...

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