- 您现在的位置：买卖IC网 > PDF目录98209 > TDF8553J (NXP SEMICONDUCTORS) 87 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM37 PDF资料下载
参数资料
| 型号： | TDF8553J |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 87 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM37 |
| 封装： | PLASTIC, SOT725-1 |
| 文件页数： | 37/47页 |
| 文件大小： | 391K |
| 代理商： | TDF8553J |
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页第30页第31页第32页第33页第34页第35页第36页当前第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页
TDF8553J_1
NXP B.V. 2008. All rights reserved.
Objective data sheet
Rev. 01 — 3 December 2008
42 of 47
NXP Semiconductors
TDF8553J
4
× 50 Watt power amplier and multiple voltage regulator
[1]
Measured in the frequency range 20 Hz to 80 kHz; at IO(reg) =10mA
12.4 Stability
The regulators are made stable by connecting capacitors to the regulator outputs. The
stability can be guaranteed with almost any output capacitor if its Electric Series
Resistance (ESR) stays below the ESR curve shown in Figure 32. If an electrolytic
capacitor is used, its behavior with temperature can cause oscillations at extremely low
temperature. Oscillation problems can be avoided by adding a 47 nF capacitor in parallel
with the electrolytic capacitor. The following example describes how to select the value of
output capacitor.
12.4.1 Example regulator 2
Regulator 2 is stabilized with an electrolytic output capacitor of 10
F which has an ESR
of 4
. At T
amb = 30 °C the capacitor value decreases to 3 F and its ESR increases to
28
which is above the maximum allowed as shown in Figure 32, and which will make
the regulator unstable. To avoid problems with stability at low temperatures, the
recommended solution is to use tantalum capacitors. Either use a tantalum capacitor of
10
F, or an electrolytic capacitor with a higher value.
Table 17.
Regulator noise gures
Regulator
Noise gure (
V) [1]
Co = 10 F
Co = 47 F
Co = 100 F
1
225
180
145
2
700
600
390
3
100
85
65
4
235
205
175
5
315
285
225
6
710
550
340
Fig 32. Curve for selecting the value of output capacitors for regulators 1 to 6
0
0.1
1
10
C (
F)
mgl912
stable region
maximum ESR
100
ESR
(
)
20
15
10
5
相关PDF资料 |
PDF描述 |
|---|---|
| TDF8554J/N2 | 44 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM37 |
| TDF8554J/N4 | 44 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM37 |
| TDF8555J/N1 | 44 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM37 |
| TDF8599TD | 70 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO36 |
| TDF8599TH | 70 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO36 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TDF8590TH | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:2 X 80 W SE (4 OHM) or 1 X 160 W BTL (8 OHM) class-D amplifier |
| TDF8590TH/N1,118 | 功能描述:音频放大器 AMPLIFIER CLASS D 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 |
| TDF8590TH/N1S,118 | 功能描述:音频放大器 4/8 OHM CLASS D AMP 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 |
| TDF8590TH/N1-T | 功能描述:音频放大器 AMPLIFIER CLASS D 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 |
| TDF8590TH/N1TJ | 制造商:NXP Semiconductors 功能描述:- Tape and Reel |
发布紧急采购，3分钟左右您将得到回复。