- 您现在的位置：买卖IC网 > PDF目录98274 > TPA6017A2PWPR (TEXAS INSTRUMENTS INC) 1.9 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO20 PDF资料下载
参数资料
| 型号： | TPA6017A2PWPR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 1.9 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO20 |
| 封装： | GREEN, PLASTIC, HTSSOP-20 |
| 文件页数： | 16/29页 |
| 文件大小： | 575K |
| 代理商： | TPA6017A2PWPR |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页当前第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页
TPA6017A2
SLOS386A NOVEMBER 2001 REVISED APRIL 2007
23
www.ti.com
APPLICATION INFORMATION
crest factor and thermal considerations (continued)
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. Using the power dissipation curves for a 5-V, 3-
system, the internal dissipation in the TPA6017A2
and maximum ambient temperatures is shown in Table 3.
Table 3. TPA6017A2 Power Rating, 5-V, 3-
, Stereo
PEAK OUTPUT POWER
(W)
AVERAGE OUTPUT POWER
POWER DISSIPATION
(W/Channel)
MAXIMUM AMBIENT
TEMPERATURE
4
2 W (3 dB)
1.7
3
°C
4
1000 mW (6 dB)
1.6
6
°C
4
500 mW (9 dB)
1.4
24
°C
4
250 mW (12 dB)
1.1
51
°C
4
125 mW (15 dB)
0.8
78
°C
4
63 mW (18 dB)
0.6
96
°C
Table 4. TPA6017A2 Power Rating, 5-V, 8-
, Stereo
PEAK OUTPUT POWER
AVERAGE OUTPUT POWER
POWER DISSIPATION
(W/Channel)
MAXIMUM AMBIENT
TEMPERATURE
2.5 W
1250 mW (3 dB crest factor)
0.55
100
°C
2.5 W
1000 mW (4 dB crest factor)
0.62
94
°C
2.5 W
500 mW (7 dB crest factor)
0.59
97
°C
2.5 W
250 mW (10 dB crest factor)
0.53
102
°C
The maximum dissipated power, PD(max), is reached at a much lower output power level for an 8- load than
for a 3-
load. As a result, this simple formula for calculating PD(max) may be used for an 8- application:
P
D(max) +
2V2
DD
p2R
L
(9)
However, in the case of a 3-
load, the PD(max) 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 PD(max) formula
for a 3-
load.
The maximum ambient temperature depends on the heat sinking ability of the PCB system. The derating factor
for the PWP package is shown in the dissipation rating table. Converting this to
ΘJA:
(10)
Θ
JA +
1
Derating Factor
+
1
0.022
+ 45°C W
To calculate maximum ambient temperatures, first consider that the numbers from the dissipation graphs are
per channel so the dissipated power needs to be doubled for two channel operation. Given
ΘJA, the maximum
allowable junction temperature, and the total internal dissipation, the maximum ambient temperature can be
calculated with the following equation. The maximum recommended junction temperature for the TPA6017A2
is 150
°C. The internal dissipation figures are taken from Figure 26.
相关PDF资料 |
PDF描述 |
|---|---|
| TPA6017A2PWP | 1.9 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO20 |
| TPA6017A2PWPG4 | 1.9 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO20 |
| TPA6017A2PWPRG4 | 1.9 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO20 |
| TPA6020A2RGWRG4 | 2.15 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC20 |
| TPA6020A2RGWR | 2.15 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC20 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TPA6017A2PWPRG4 | 功能描述:音频放大器 Stereo Cost Eff Class-AB RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| TPA6019A4PWPR | 制造商:Texas Instruments 功能描述:AUDIO AMP 制造商:TI 功能描述:STEREO BTL 1W AUDIO POWER AMPLIFIER |
| TPA6020A2 | 制造商:TI 制造商全称:Texas Instruments 功能描述:2.8-W STEREO FULLY DIFFERENTIAL AUDIO POWER AMPLIFIER |
| TPA6020A2EVM | 功能描述:音频 IC 开发工具 TPA6020A2 Eval Mod RoHS:否 制造商:Texas Instruments 产品:Evaluation Kits 类型:Audio Amplifiers 工具用于评估:TAS5614L 工作电源电压:12 V to 38 V |
| TPA6020A2RGW | 制造商:TI 制造商全称:Texas Instruments 功能描述:2.8-W STEREO FULLY DIFFERENTIAL AUDIO POWER AMPLIFIER |
发布紧急采购，3分钟左右您将得到回复。