- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄365909 > TPA0211DGNR AUDIO AMPLIFIER|SINGLE|CMOS|TSSOP|8PIN|PLASTIC PDF資料下載
參數(shù)資料
| 型號： | TPA0211DGNR |
| 元件分類： | 音頻放大器 |
| 英文描述： | AUDIO AMPLIFIER|SINGLE|CMOS|TSSOP|8PIN|PLASTIC |
| 中文描述： | 音頻放大器|單|的CMOS | TSSOP封裝| 8引腳|塑料 |
| 文件頁數(shù)： | 40/42頁 |
| 文件大?。?/td> | 806K |
| 代理商： | TPA0211DGNR |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁當前第40頁第41頁第42頁
TPA0202
2-W STEREO AUDIO POWER AMPLIFIER
SLOS205B – FEBRUARY 1998 – REVISED DECEMBER 2000
40
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
headroom and thermal considerations (continued)
T
A
Max
T
J
Max
150
Θ
JA
P
D
45(0.6
2)
96
°
C (15 dB headroom, 0 CFM)
(20)
NOTE:
Internal dissipation of 0.6 W is estimated for a 2-W system with 15 dB headroom per channel.
Table 4 shows that for some applications no airflow is required to keep junction temperatures in the specified
range. The TPA0202 is designed with thermal protection that turns the device off when the junction temperature
surpasses 150
°
C to prevent damage to the IC. Table 4 was calculated for maximum listening volume without
distortion. When the output level is reduced the numbers in the table change significantly. Also, using 8-
speakers dramatically increases the thermal performance by increasing amplifier efficiency.
junction temperature measurement
Characterizing a PCB layout with respect to thermal impedance is very difficult, as it is usually impossible to
know the junction temperature of the IC in question. The TPA0202 terminal 2 (TJ) sources a current proportional
to the junction temperature. The circuit internal to TJ is shown in Figure 70.
5R
TJ
VDD
R
R
Figure 70. TJ Terminal Internal Circuit
Connect an ammeter between TJ and ground to measure the current. As the resistors have a tolerance of
±
20%,
this measurement must be calibrated on each device. The intent of this function is in characterization of the PCB
and end equipment and not a real-time measurement of temperature. Typically a 25
°
C reading is –120
μ
A for
a 3.3-V supply and –135
μ
A for a 5-V supply. The slope is approximately 0.25
μ
A/
°
C for both V
DD
= 3.3 V and
V
DD
= 5 V. To reduce quiescent current, do not ground TJ in normal operation. It can be connected to V
DD
or
left floating as it has a resistor connected across the base-emitter junction.
相關PDF資料 |
PDF描述 |
|---|---|
| TPA0212PWPR | AUDIO AMPLIFIER|DUAL|CMOS|TSSOP|24PIN|PLASTIC |
| TPA0213DGQR | Toggle Switch,STRAIGHT,SPDT,(ON)-OFF-(ON),PC TAIL Terminal,TOGGLE BAT,PCB Hole Count:3 |
| TPA0222PWPR | AUDIO AMPLIFIER|DUAL|CMOS|TSSOP|24PIN|PLASTIC |
| TPA0223DGQR | Switches, Toggle; Circuitry:SPDT; Switch Operation:On-None-On; Current Rating:2A; Leaded Process Compatible:Yes; Peak Reflow Compatible (260 C):Yes; Switch Function:SPDT |
| TPA0232PWPR | Switches, Toggle; Circuitry:SPDT; Switch Operation:On-None-(On); Contact Current Max:3A; Actuator Style:Bat; Current Rating:3A@120VAC or 29VDC; Leaded Process Compatible:Yes; Operating Temp. Min:-30 C |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TPA0211DGNRG4 | 功能描述:音頻放大器 Mono Class-AB w/Mono Hdphone Drive RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA0211EVM | 功能描述:音頻 IC 開發(fā)工具 TPA0211 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
| TPA0212 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:STEREO 2-W AUDIO POWER AMPLIFIER WITH FOUR SELECTABLE GAIN SETTINGS AND MUX CONTROL |
| TPA0212_07 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:STEREO 2.6-W AUDIO POWER AMPLIFIER WITH FOUR SELECTABLE GAIN SETTINGS AND MUX CONTROL |
| TPA0212EVM | 功能描述:音頻 IC 開發(fā)工具 TPA0212 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
發(fā)布緊急采購，3分鐘左右您將得到回復。