參數(shù)資料
型號(hào)： MPZ2012S101A
廠商： Texas Instruments, Inc.
英文描述： 2.7-W CONSTANT OUTPUT POWER CLASS-D AUDIO AMPLIFIER WITH INTEGRATED BOOST CONVERTER
中文描述： 2.7鎢恒定輸出功率D類(lèi)音頻放大器，具有集成升壓轉(zhuǎn)換器
文件頁(yè)數(shù)： 7/28頁(yè)
文件大小： 753K
代理商： MPZ2012S101A
www.ti.com
CAPACITOR SELECTION
TPA2013D1
SLOS520 – AUGUST 2007
SURFACE MOUNT CAPACITORS
Temperature and applied dc voltage influence the actual capacitance of high-K materials.
Table 3 shows the relationship between the different types of high-K materials and their associated tolerances,
temperature coefficients, and temperature ranges. Notice that a capacitor made with X5R material can lose up to
15% of its capacitance within its working temperature range.
High-K material is very sensitive to applied dc voltage. X5R capacitors can have losses ranging from 15 to 45%
of their initial capacitance with only half of their dc rated voltage applied. For example, if 5 Vdc is applied to a 10
V, 1
μF X5R capacitor, the measured capacitance at that point may show 0.85 μF, 0.55 μF, or somewhere in
between. Y5V capacitors have losses that can reach or exceed 50% to 75% of their rated value.
In an application, the working capacitance of components made with high-K materials is generally much lower
than nominal capacitance. A worst case result with a typical X5R material might be –10% tolerance, –15%
temperature effect, and –45% dc voltage effect at 50% of the rated voltage. This particular case would result in a
working capacitance of 42% (0.9
× 0.85 × 0.55) of the nominal value.
Select high-K ceramic capacitors according to the following rules:
1. Use capacitors made of materials with temperature coefficients of X5R, X7R, or better.
2. Use capacitors with dc voltage ratings of at least twice the application voltage. Use minimum 10 V capacitors
for the TPA2013D1.
3. Choose a capacitance value at least twice the nominal value calculated for the application. Multiply the
nominal value by a factor of 2 for safety. If a 10
μF capacitor is required, use 20 μF.
The preceding rules and recommendations apply to capacitors used in connection with the TPA2013D1. The
TPA2013D1 cannot meet its performance specifications if the rules and recommendations are not followed.
Table 3. Typical tolerance and temperature coefficient of capacitance by material
Material
COG/NPO
X7R
X5R
Typical Tolerance
±5%
±10%
80/–20%
Temperature Coefficient
±30ppm
±15%
22/–82%
Temperature Range,
°C
–55/125
°C
–55/125
°C
-30/85
°C
Copyright 2007, Texas Instruments Incorporated
Submit Documentation Feedback
15
Product Folder Link(s): TPA2013D1
相關(guān)PDF資料
PDF描述
MQ172-3PA-11 3 CONTACT(S), FEMALE, TELECOM AND DATACOM CONNECTOR, SURFACE MOUNT, RECEPTACLE
MQ172X-4PA-11 4 CONTACT(S), FEMALE, TELECOM AND DATACOM CONNECTOR, SURFACE MOUNT, RECEPTACLE
MQFL-270-12D-Z-ES 2-OUTPUT 120 W DC-DC REG PWR SUPPLY MODULE
MR-50F+ RECTANGULAR CONNECTOR
MR-50FG+ RECTANGULAR CONNECTOR
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MPZ2012S101AT 制造商:TDK Innoveta 功能描述:Ferrite Beads Multi-Layer Chip Bead 100Ohm 25% 100MHz 4A 0805 T/R
MPZ2012S101AT000 制造商:TDK 功能描述:
MPZ2012S101ATD25 制造商:TDK 功能描述:FERRITE CHIP BEADS - Tape and Reel
MPZ2012S102A 功能描述:電磁干擾濾波珠子、扼流圈和陣列 0805 1000ohms 100MHz Rdc 0.15ohms 1.5A RoHS:否 制造商:AVX 阻抗: 最大直流電流:35 mA 最大直流電阻: 容差: 端接類(lèi)型:SMD/SMT 電壓額定值:25 V 工作溫度范圍:- 25 C to + 85 C 封裝 / 箱體:0603 (1608 metric)
MPZ2012S102AT 制造商:TDK 功能描述:Ferrite Beads Multi-Layer Chip Bead 1KOhm 25% 100MHz 1.5A 0805 制造商:TDK 功能描述:MPZ Series 1 kO 25 % 100 MHz 1.5 A 0805 Multi-Layer Chip Ferrite Bead 制造商:TDK 功能描述:MPZ Series 1 kO ?25 % 100 MHz 1.5 A 0805 Multi-Layer Chip Ferrite Bead
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*