Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

TPA0233 Datasheet(PDF) 18 Page - Texas Instruments

Part No. TPA0233
Description  2-W MONO AUDIO POWER AMPLIFIER WITH HEADPHONE DRIVE
Download  25 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPA0233 Datasheet(HTML) 18 Page - Texas Instruments

Back Button TPA0233_07 Datasheet HTML 14Page - Texas Instruments TPA0233_07 Datasheet HTML 15Page - Texas Instruments TPA0233_07 Datasheet HTML 16Page - Texas Instruments TPA0233_07 Datasheet HTML 17Page - Texas Instruments TPA0233_07 Datasheet HTML 18Page - Texas Instruments TPA0233_07 Datasheet HTML 19Page - Texas Instruments TPA0233_07 Datasheet HTML 20Page - Texas Instruments TPA0233_07 Datasheet HTML 21Page - Texas Instruments TPA0233_07 Datasheet HTML 22Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 18 / 25 page
background image
TPA0233
2-W MONO AUDIO POWER AMPLIFIER
WITH HEADPHONE DRIVE
SLOS278D – JANUARY 2000 – REVISED NOVEMBER 2002
18
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
crest factor and thermal considerations (continued)
Converting dB back into watts:
P
W + 10
PdB 10
P
ref
+ 63 mW (18-dB crest factor)
+ 125 mW (15-dB crest factor)
+ 250 mW (9-dB crest factor)
+ 500 mW (6-dB crest factor)
+ 1000 mW (3-dB crest factor)
(12)
+ 2000 mW (15-dB crest factor)
This is valuable information to consider when attempting to estimate the heat dissipation requirements for the
amplifier system. Comparing the absolute worst case, which is 2 W of continuous power output with a 3-dB crest
factor, against 12-dB and 15-dB applications drastically affects maximum ambient temperature ratings for the
system. Table 3 shows maximum ambient temperatures and TPA0233 internal power dissipation for various
output-power levels.
Table 3. TPA0233 Power Rating, 5-V, 3-
Ω, Mono
PEAK OUTPUT POWER
(W)
AVERAGE OUTPUT POWER
POWER DISSIPATION
(W)
MAXIMUM AMBIENT
TEMPERATURE
4
2 W (3-dB crest factor)
1.7
– 3
°C
4
1000 mW (6-dB crest factor)
1.6
6
°C
4
500 mW (9-dB crest factor)
1.4
24
°C
4
250 mW (12-dB crest factor)
1.1
51
°C
4
125 mW (15-dB crest factor)
0.8
78
°C
4
63 mW (18-dB crest factor)
0.6
96
°C
Table 4. TPA0233 Power Rating, 5-V, 8-
Ω, Stereo
PEAK OUTPUT POWER
(W)
AVERAGE OUTPUT POWER
POWER DISSIPATION
(W)
MAXIMUM AMBIENT
TEMPERATURE
2.5
1250 mW (3-dB crest factor)
0.55
100
°C
2.5
1000 mW (4-dB crest factor)
0.62
94
°C
2.5
500 mW (7-dB crest factor)
0.59
97
°C
2.5
250 mW (10-dB crest factor)
0.53
102
°C
The maximum dissipated power (PDmax), is reached at a much lower output power level for an 8-Ω load than
for a 4-
Ω load. As a result, this simple formula for calculating PDmax may be used for a 4-Ω application.
P
Dmax +
2V2
DD
p2R
L
(13)
However, in the case of a 4-
Ω load, the PDmax occurs at a point well above the normal operating power level.
The amplifier may therefore be operated at a higher ambient temperature than required by the PDmax formula
for a 4-
Ω load.
The maximum ambient temperature depends on the heat sinking ability of the PCB system. The derating factor
for the DGQ package is shown in the dissipation rating table. Converting this to
ΘJA:
Θ
JA +
1
Derating Factor
+
1
0.0171
+ 58.48°C W
(14)


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25 


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn