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參數(shù)資料
| 型號(hào)： | TPA3007D1PWR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 6.5 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO24 |
| 封裝： | GREEN, PLASTIC, TSSOP-24 |
| 文件頁(yè)數(shù)： | 5/22頁(yè) |
| 文件大小： | 451K |
| 代理商： | TPA3007D1PWR |
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1 nF
Ferrite
Chip Bead
OUTP
OUTN
Ferrite
Chip Bead
1 nF
7
or Greater
0.47
F
0.47
F
33
H
33
H
OUTP
OUTN
8
Ferrite
Chip Bead
Ferrite
Chip Bead
1 nF
SHORT-CIRCUIT PROTECTION
THERMAL PROTECTION
SLOS418D – SEPTEMBER 2003 – REVISED MARCH 2008
Figure 16. Typical Ferrite Chip Bead Filter (Chip bead example: Fair-Rite 2512067007Y3)
Figure 17. Typical LC Output Filter for 8-
Speaker, Cutoff Frequency of 41 kHz
The TPA3007D1 has short circuit protection circuitry on the outputs that prevents damage to the device during
output-to-output shorts, output-to-GND shorts, and output-to-VCC shorts. When a short-circuit is detected on the
outputs, the part immediately disables the output drive and enters into shutdown mode. This is a latched fault
and must be reset by cycling the voltage on the SHUTDOWN pin to a logic low and back to the logic high state
for normal operation. This clears the short-circuit flag and allow for normal operation if the short was removed. If
the short was not removed, the protection circuitry again activates.
Two Schottky diodes are required to provide short-circuit protection. The diodes should be placed as close to the
TPA3007D1 as possible, with the anodes connected to PGND and the cathodes connected to OUTP and OUTN
as shown in the application circuit schematic. The diodes should have a forward voltage rating of 0.5 V at a
minimum of 1A output current and a dc blocking voltage rating of at least 30 V. The diodes must also be rated to
operate at a junction temperature of 150
°C.
If short-circuit protection is not required, the Schottky diodes may be omitted.
Thermal protection on the TPA3007D1 prevents damage to the device when the internal die temperature
exceeds 150
°C. There is a ±15°C tolerance on this trip point from device to device. Once the die temperature
exceeds the thermal set point, the device enters into the shutdown state and the outputs are disabled. This is not
a latched fault. The thermal fault is cleared once the temperature of the die is reduced by 15
°C. The device
begins normal operation at this point with no external system interaction.
Copyright 2003–2008, Texas Instruments Incorporated
13
Product Folder Link(s): TPA3007D1
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|---|---|
| TPA3007D1PWRG4 | 功能描述:音頻放大器 Mono Med Power Filter-Free Class-D 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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA3008D2 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-W STEREO CLASS-D AUDIO POWER AMPLIFIER |
| TPA3008D2_07 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-W STEREO CLASS-D AUDIO POWER AMPLIFIER |
| TPA3008D2EVM | 功能描述:音頻 IC 開(kāi)發(fā)工具 TPA3008D2 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V |
| TPA3008D2PHP | 功能描述:音頻放大器 10-W Stereo Class-D 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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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