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參數(shù)資料
| 型號： | IRAUDAMP5 |
| 廠商： | International Rectifier |
| 英文描述： | 120W x 2 Channel Class D Audio Power Amplifier Using the IRS2092S and IRF6645 |
| 中文描述： | 120瓦× 2通道D類音頻功率放大器使用IRS2092S和IRF6645 |
| 文件頁數(shù)： | 16/49頁 |
| 文件大?。?/td> | 1416K |
| 代理商： | IRAUDAMP5 |
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Positive and Negative side of Short Circuit, versus switching output shut down:
OCP Waveforms Showing Load Current and Switch Node Voltage (VS)
Fig 16
CSD pin
CSD pin
VS pin
VS pin
LoCSD pin
LoCSD pin
VS pin
VS pin
Load current
Load current
.
Short Circuit Response:
OCP Waveforms Showing CSD Trip and Hiccup
Fig 17
CSD pin
CSD pin
VS pin
VS pin
Load current
Load current
External Faults
OVP, UVP and DCP are considered external faults. In the event that any external fault condition
is detected, the shutdown circuit will disable the output for about three seconds, during which
time the orange AUDAMP5 “Protection” LED will turn on. If the fault condition has not cleared,
the protection circuit will hiccup until the fault is removed. Once the fault is cleared, the green
“Normal” LED will turn on. There is no manual reset option.
Over-Voltage Protection (OVP
Fig 18
)
OVP will shut down the amplifier if the bus voltage between GND and -B exceeds 40V. The
threshold is determined by the voltage sum of the Zener diode Z105, R140, and V
BE
of Q109. As
a result, it protects the board from hazardous bus pumping at very low audio signal frequencies
by shutting down the amplifier. OVP will automatically reset after three seconds. Since the +B
and –B supplies are assumed to be symmetrical (bus pumping, although asymmetrical in time,
www.irf.com
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| IRAUDAMP9 | 功能描述:音頻 IC 開發(fā)工具 1.7kW 2ohm Class-D IRS2092 IRFB4227 BRD 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 |
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