TFA9843AJ/N1,112 NXP Semiconductors, TFA9843AJ/N1,112 Datasheet

IC AMP AUDIO PWR 14W STER 9SIL

TFA9843AJ/N1,112

Manufacturer Part Number
TFA9843AJ/N1,112
Description
IC AMP AUDIO PWR 14W STER 9SIL
Manufacturer
NXP Semiconductors
Type
Class ABr
Datasheet
1.TFA9843AJN1112.pdf (19 pages)

Specifications of TFA9843AJ/N1,112

Output Type
2-Channel (Stereo)
Package / Case
9-SIL (Bent and Staggered Leads)
Max Output Power X Channels @ Load
14W x 2 @ 4 Ohm
Voltage - Supply
9 V ~ 28 V
Features
Depop, Mute, Short-Circuit and Thermal Protection, Standby, Volume Control
Mounting Type
Through Hole
Product
General Purpose Audio Amplifiers
Output Power
8.5 W, 14 W
Available Set Gain
26 dB
Thd Plus Noise
0.1 %
Operating Supply Voltage
18 V
Supply Current
60 mA
Maximum Power Dissipation
35 W
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Audio Load Resistance
4 Ohms
Input Signal Type
Single
Minimum Operating Temperature
- 40 C
Output Signal Type
Single
Supply Voltage (max)
28 V
Supply Voltage (min)
9 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
935275688112
TFA9843AJ/N1
TFA9843AJ/N1
1. General description
2. Features
3. Applications
The TFA9843AJ contains two identical audio power amplifiers. The TFA9843AJ can be
used as two Single-Ended (SE) channels with a volume control. The maximum gain is
26 dB.
The TFA9843AJ comes in a 9-pin DIL-bent-SIL (DBS9P) power package. The TFA9843AJ
is pin compatible with the TFA9842AJ, TFA9843(B)J, TFA9842(B)J and TFA9841J. The
difference between the TFA9843AJ and the TFA9843(B)J, TFA9842(B)J, TFA9841J is the
functionality of pin 7. The TFA9843AJ has a volume control on pin 7 (VC). The
TFA9843(B)J, TFA9842(B)J and TFA9841J have a mode select on pin 7 (MODE).
The TFA9843AJ 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.
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TFA9843AJ
20 W stereo power amplifier with volume control
Rev. 01 — 28 April 2006
2 channel SE: 1 W to 20 W operation possibility
Soft clipping
Input clamps
Volume control
Standby and Mute mode
No on or 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 TFA9842AJ, TFA9843(B)J, TFA9842(B)J, TFA9841J
CRT TV and LCD TV
Monitors
PC speakers
Boom box
Mini and micro audio receivers
Preliminary data sheet

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TFA9843AJ/N1,112 Summary of contents

Page 1

TFA9843AJ 20 W stereo power amplifier with volume control Rev. 01 — 28 April 2006 1. General description The TFA9843AJ contains two identical audio power amplifiers. The TFA9843AJ can be used as two Single-Ended (SE) channels with a volume control. ...

Page 2

Philips Semiconductors 4. Quick reference data Table unless otherwise specified. Symbol CC(stb THD G v(max SVRR [1] A minimum load of 3 [2] Supply ...

Page 3

Philips Semiconductors 6. Block diagram Fig 1. Block diagram 7. Pinning information 7.1 Pinning Fig 2. Pin configuration TFA9843AJ_1 Preliminary data sheet 20 W stereo power amplifier with volume control IN1 IN2 60 ...

Page 4

Philips Semiconductors 7.2 Pin description Table 3. Symbol IN2 OUT2 CIV IN1 GND SVR VC OUT1 Functional description 8.1 Input configuration The input cut-off frequency is as follows 3dB – Single-ended application ...

Page 5

Philips Semiconductors 8.2.2 Headroom Typical CD music requires at least 12 dB (factor 15.85) dynamic headroom, compared to the average power output, for transferring the loudest parts without distortion and P CC Average Listening Level ...

Page 6

Philips Semiconductors 8.5 Built-in protection circuits The TFA9843AJ contains two types of temperature sensors; one measures the local temperatures of the power stages and one measures the global chip temperature local temperature of the power stage of approximately ...

Page 7

Philips Semiconductors 11. Static characteristics Table unless otherwise specified. Symbol CC(stb I(VC) I I(VC) [1] A minimum load of 3 [2] The DC output voltage ...

Page 8

Philips Semiconductors [1] The noise output voltage is measured at the output in a frequency range from kHz (unweighted), with a source impedance Z [2] Supply voltage ripple rejection is measured at the output, with a ...

Page 9

Philips Semiconductors ( THD = kHz L Fig 7. Output power as a function of supply voltage 0 cs (dB) ...

Page 10

Philips Semiconductors 13. Application information 13.1 Application diagrams 13.1.1 Single-ended application CONTROLLER 22 F Fig 11. SE application diagram Remark: By switching inductive loads, the output voltage can rise beyond the maximum supply voltage of 28 ...

Page 11

Philips Semiconductors 13.1.2 Volume control drive options Fig 12. Volume control drive circuit with 3.3 V PWM Fig 13. Volume control drive circuit with 5 V PWM Fig 14. Volume control drive circuit with potentiometer TFA9843AJ_1 Preliminary data sheet 20 ...

Page 12

Philips Semiconductors 13.2 Printed-circuit board 13.2.1 Layout and grounding To obtain a high-level system performance, certain grounding techniques are essential. The input reference grounds have to be tied with their respective source grounds and must have separate tracks from the ...

Page 13

Philips Semiconductors 13.3 Thermal behavior and heatsink calculation The measured maximum thermal resistance of the IC package calculation for the heatsink can be made, with the following parameters: T amb(max and ...

Page 14

Philips Semiconductors (1) R (2) R (3) R (4) R (5) R Fig 16. Junction temperature as a function of supply voltage 14. Test information 14.1 Quality information The General Quality Specification for Integrated Circuits, SNW-FQ-611 is applicable. TFA9843AJ_1 Preliminary ...

Page 15

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 16

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 17

Philips Semiconductors 17. Revision history Table 11. Revision history Document ID Release date TFA9843AJ_1 20060428 TFA9843AJ_1 Preliminary data sheet 20 W stereo power amplifier with volume control Data sheet status Change notice Preliminary data sheet - Rev. 01 — 28 ...

Page 18

Philips Semiconductors 18. Legal information 18.1 Data sheet status [1][2] Document status Product status Objective [short] data sheet Development Preliminary [short] data sheet Qualification Product [short] data sheet Production [1] Please consult the most recently issued document before initiating or ...

Page 19

Philips Semiconductors 20. Contents 1 General description . . . . . . . . . . . . . . . . . . . . . . 1 2 Features . . . . . . . . ...

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