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參數(shù)資料
| 型號(hào)： | LV4924VH-TLM-H |
| 廠商： | ON Semiconductor |
| 文件頁(yè)數(shù)： | 15/15頁(yè) |
| 文件大小： | 0K |
| 描述： | IC AMP AUDIO CLASS D BTL 36HSSOP |
| 標(biāo)準(zhǔn)包裝： | 2,000 |
| 類(lèi)型： | D 類(lèi) |
| 輸出類(lèi)型： | 2 通道（立體聲） |
| 在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量： | 15W x 2 @ 8 歐姆 |
| 電源電壓： | 9 V ~ 20 V |
| 特點(diǎn)： | 靜音，短路和熱保護(hù)，待機(jī) |
| 安裝類(lèi)型： | 表面貼裝 |
| 供應(yīng)商設(shè)備封裝： | 36-HSSOP |
| 封裝/外殼： | 36-SOP + 2 翼片裸露焊盤(pán) |
| 包裝： | 帶卷 (TR) |
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LV4924VH
No.A1997-9/15
Thermal protection circuit
This circuit detects the temperature (150
°C or more) inside LSI for protection. While this protection circuit is active,
the output Tr is turned OFF on both high- and low-sides, putting the output in the high-impedance state. This operation
is also provided with the hysteresis.
Supply voltage drop protection circuit
To avoid unstable operation at low voltages, this circuit monitors the PVD pin voltage and turns ON the amplifier when
this voltage exceeds the Attack voltage (VD = 7V typ.). In addition, to avoid unstable operation when the PVD pin
voltage has dropped because of certain reasons, the Recover voltage (VD = 6V typ.) is set. Both Attack and Recover
voltages have the hysteresis (about 1V) to prevent continuous ON / OFF operation of the supply voltage drop
protection circuit.
PVD Pin Voltage
Internal
Control
Signal
Recovery Voltage
Output offset detection protection circuit
This circuit is a protection circuit intended to alleviate burn of the loudspeakers when DC outputs to the BTL output for
a certain period or more.
The circuit detects the case in which each BTL input of each channel continues to disagree (for about 300ms), turns
OFF the output Tr on both high- and low-sides, and puts the output in the high-impedance state.
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| LV49821VH-MPB-H | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類(lèi)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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