tda8941p NXP Semiconductors, tda8941p Datasheet

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tda8941p

Manufacturer Part Number
tda8941p
Description
1.5 W Mono Bridge Tied Load Btl Audio Amplifier
Manufacturer
NXP Semiconductors
Datasheet

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Part Number:
TDA8941P
Manufacturer:
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20 000
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TDA8941P
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1. General description
2. Features
3. Applications
4. Quick reference data
c
c
The TDA8941P is a single-channel audio power amplifier with an output power of
1.5 W at an 16
(BTL) amplifier with an all-NPN output stage and standby/mute logic. The TDA8941P
comes in a 8-pin dual in-line (DIP8) package. The TDA8941P is printed-circuit board
(PCB) compatible with all other types in the TDA894x family. One PCB footprint
accommodates both the mono and the stereo products.
Table 1:
Symbol Parameter
V
I
I
q
stb
CC
TDA8941P
1.5 W mono Bridge Tied Load (BTL) audio amplifier
Rev. 02 — 7 April 2000
Few external components
Fixed gain
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
Printed-circuit board compatible.
Mains fed applications (e.g. TV sound)
PC audio
Portable audio.
supply voltage
quiescent supply current
standby supply current
Quick reference data
load and a 9 V supply. The circuit contains a Bridge Tied Load
Conditions
V
CC
= 9 V; R
L
=
Min
6
-
-
Product specification
Typ
9
14
-
Max
18
20
10
Unit
V
mA
A

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tda8941p Summary of contents

Page 1

... (BTL) amplifier with an all-NPN output stage and standby/mute logic. The TDA8941P comes in a 8-pin dual in-line (DIP8) package. The TDA8941P is printed-circuit board (PCB) compatible with all other types in the TDA894x family. One PCB footprint accommodates both the mono and the stereo products. ...

Page 2

... Description DIP8 plastic dual in-line package; 8 leads (300 mil TDA8941P STANDBY/ MODE MUTE LOGIC SVR GND Rev. 02 — 7 April 2000 TDA8941P 1.5 W mono BTL audio amplifier Min Typ Max = 16 ; 1.2 1 0.03 0 Version SOT97-1 7 OUT 2 ...

Page 3

... IN SVR OUT GND 8. Functional description The TDA8941P is a mono BTL audio power amplifier capable of delivering 1.5 W output power gain is fixed at 32 dB. With the three-level MODE input the device can be switched from ‘standby’ to ‘mute’ and to ‘operating’ mode. The TDA8941P outputs are protected by an internal thermal shutdown protection mechanism and a short-circuit protection. 8.1 Input confi ...

Page 4

... Figure 8. The maximum output power is limited by the maximum = and W/15. mW. Rev. 02 — 7 April 2000 TDA8941P 1.5 W mono BTL audio amplifi THD = 1% (see Figure o Figure 11 on page 10 for 0 dB © Philips Electronics N.V. 2000. All rights reserved. ...

Page 5

... For the average listening level a power dissipation of 0.6 W can be used for calculation of the maximum ambient temperature. 8.3 Mode selection The TDA8941P has three functional modes, which can be selected by applying the proper DC voltage to pin MODE. See which depend on the supply voltage level. The MODE pin can be driven by a 3-state logic output stage: e ...

Page 6

... Philips Semiconductors 8.5 Built-in protection circuits The TDA8941P contains two types of protection circuits, i.e. short-circuit and thermal shutdown. 8.5.1 Short-circuit protection Short-circuit to ground or supply line — This is detected by a so-called ‘missing current’ detection circuit which measures the current in the positive supply line and the current in the ground line ...

Page 7

... MGU022 20 handbook, halfpage I q (mA (V) Fig 4. Quiescent supply current as function of mode voltage. Rev. 02 — 7 April 2000 TDA8941P 1.5 W mono BTL audio amplifier Figure 13; unless otherwise specified. Min Typ Max [ [ ...

Page 8

... [ kHz 50 ripple [ 100 Hz - ripple to 20 kHz [3] mute mode - = Rev. 02 — 7 April 2000 TDA8941P 1.5 W mono BTL audio amplifier Figure 13; unless otherwise specified. Typ Max Unit 1 0.03 0 110 k 90 120 ...

Page 9

... MGU021 10 handbook, halfpage THD (%) (Hz th(h-a) Rev. 02 — 7 April 2000 TDA8941P 1.5 W mono BTL audio amplifier MGU019 ( kHz. L Figure 14). These curves Influence K/W. MGU020 (1) ( ...

Page 10

... MGU029 2 handbook, halfpage P (W) 1 ( Fig 11. Power dissipation as function of output power. Rev. 02 — 7 April 2000 TDA8941P 1.5 W mono BTL audio amplifier MGU027 (V) MGU028 (1) (2) 0.5 1 1 ...

Page 11

... Curve B: inputs short-circuited and connected to ground (asymmetrical application) Fig 12. Supply voltage ripple rejection as function of frequency. 9397 750 06864 Product specification Rev. 02 — 7 April 2000 TDA8941P 1.5 W mono BTL audio amplifier MGU024 (Hz) © Philips Electronics N.V. 2000. All rights reserved. ...

Page 12

... Product specification Internal circuitry Symbol Equivalent circuit IN+ and OUT and OUT+ MODE 4 SVR Rev. 02 — 7 April 2000 TDA8941P 1.5 W mono BTL audio amplifi 1 (SVR) MGU082 100 1 ...

Page 13

... TDA8941P V CC MODE 4 STANDBY/ MUTE LOGIC SVR 6 GND Rev. 02 — 7 April 2000 TDA8941P 1.5 W mono BTL audio amplifi 100 nF 1000 OUT OUT 30 k SHORT CIRCUIT AND TEMPERATURE PROTECTION 8 ...

Page 14

... For good THD and noise performance a low ESR capacitor is recommended. 9397 750 06864 Product specification 1.5 W mono BTL audio amplifi OUT OUT 220 nF IN 1.5 nF 100 nF 1000 F Rev. 02 — 7 April 2000 TDA8941P MUTE V CC GND MGU017 © Philips Electronics N.V. 2000. All rights reserved ...

Page 15

... kHz audio pass band kHz and 12. Rev. 02 — 7 April 2000 TDA8941P 1.5 W mono BTL audio amplifier calculation is 100 K/W. th(j-a) should be reduced to 125 C. This results in: © Philips Electronics N.V. 2000. All rights reserved ...

Page 16

... 0.53 1.07 0.36 9.8 6.48 2.54 0.38 0.89 0.23 9.2 6.20 0.021 0.042 0.014 0.39 0.26 0.10 0.015 0.035 0.009 0.36 0.24 REFERENCES JEDEC EIAJ MO-001 SC-504-8 Rev. 02 — 7 April 2000 TDA8941P 1.5 W mono BTL audio amplifier SOT97 ( max. 3.60 8.25 10.0 7.62 0.254 1.15 3.05 7.80 8.3 0.14 0.32 0.39 0.30 0.01 0.045 0.12 0.31 0.33 EUROPEAN ...

Page 17

... For SDIP packages, the longitudinal axis must be parallel to the transport direction of the printed-circuit board. 9397 750 06864 Product specification methods Soldering method Dipping suitable Rev. 02 — 7 April 2000 TDA8941P 1.5 W mono BTL audio amplifier ). stg(max) Wave [1] suitable © Philips Electronics N.V. 2000. All rights reserved ...

Page 18

... Revision history Table 11: Revision history Rev Date CPCN Description 02 20000407 - Product specification; second version; supersedes initial version TDA8941P- April 1999 (9397 750 04876). Modifications: • Table 1 on page SVRR: Typ value 65 dB • Ordering options removed • Section 8 “Functional – ...

Page 19

... Rev. 02 — 7 April 2000 TDA8941P 1.5 W mono BTL audio amplifier Philips Semiconductors assumes no © ...

Page 20

... United Kingdom: Tel. +44 208 730 5000, Fax. +44 208 754 8421 United States: Tel. +1 800 234 7381 Uruguay: see South America Vietnam: see Singapore Yugoslavia: Tel. +381 11 3341 299, Fax. +381 11 3342 553 Internet: http://www.semiconductors.philips.com (SCA69) Rev. 02 — 7 April 2000 TDA8941P © Philips Electronics N.V. 2000. All rights reserved ...

Page 21

... Publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights. Date of release: 7 April 2000 Document order number: 9397 750 06864 calculation . 15 TDA8941P 1.5 W mono BTL audio amplifier ...

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