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參數(shù)資料
| 型號(hào)： | LV4993M |
| 廠商： | SANYO SEMICONDUCTOR CO LTD |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 1.5 W, 3 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| 封裝： | 0.225 INCH, MFP-8 |
| 文件頁(yè)數(shù)： | 11/13頁(yè) |
| 文件大?。?/td> | 518K |
| 代理商： | LV4993M |
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LV4993M
No.A1962-7/13
6. Pin 4 control (second amplifier stop control function)
Pin 4 are pin that control ON/OFF as for the movement of the second amplifier of the BTL amplifier. The switch of the
speaker drive (BTL output method) and the earphone drive (shingle end output method) can operate by using this
function. Moreover, it is possible to use it as a voice mute function in the BTL output method.
Second amplifier ON
V4 = 1.6 to VCC or OPEN
Second amplifier OFF
V4 = 0 to 0.3V
Make it to the opening when this function is not used.
7. Load capacitance
The phase margin degree of the power amplifier might decrease by the influence of this capacitor when the capacitor is
connected by the purpose of the anti-electric wave radiation measures etc. between output pins GND and the
oscillation be caused. Note the capacity value when you add this capacitor.
Recommended capacity value: 100pF or less or 1000pF to 1μF
8. Thermal protector circuit
The thermal protector circuit is built into in IC, and when heat is abnormally generated because of some causes, the risk
of destruction/deterioration can be reduced. The protection circuit operates when junction temperature (Tj) of the chip
in IC rises to about 165℃, the current supply source to the power amplifier is intercepted, and the signal is not output.
It returns automatically if the temperature of the chip decreases (about 140℃). This circuit must note handling enough
because it is able surely not to prevent destruction/deterioration. Turn off power promptly when you abnormally
generate heat, and pinpoint the cause.
9. Short-circuit between pins
When power is applied with pins left short-circuited, deterioration or damage may result.
Therefore, check before power application if pins are short-circuited with solder, etc. during mounting of IC to the
substrate.
10.Short-circuit of load
If the load is left short-circuited for a long period of time, deterioration or damage may occur.
Never allow the load to short-circuit.
11.Maximum rating
When IC is used near the maximum rating, there is a possibility that the maximum rating may be exceeded even under
the smallest change of conditions, resulting in failure. Take the sufficient margin for variation of supply voltage and
use IC within a range where the maximum rating will never be exceeded.
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| LV4993TH | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:For Portable Audio Equipment Monaural BTL Power Amplifier |
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| LV5017RE6-12N | 功能描述:線性和開關(guān)式電源 600W 12V 50A ENCLOSED RoHS:否 制造商:TDK-Lambda 產(chǎn)品:Switching Supplies 開放式框架/封閉式:Enclosed 輸出功率額定值:800 W 輸入電壓:85 VAC to 265 VAC 輸出端數(shù)量:1 輸出電壓（通道 1）:20 V 輸出電流（通道 1）:40 A 商用/醫(yī)用: 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:Rack 長(zhǎng)度: 寬度: 高度: |
| LV5017RE6-12NI | 功能描述:線性和開關(guān)式電源 600W 12V 50A ENCLOSE FRCD CURRENT SHARING RoHS:否 制造商:TDK-Lambda 產(chǎn)品:Switching Supplies 開放式框架/封閉式:Enclosed 輸出功率額定值:800 W 輸入電壓:85 VAC to 265 VAC 輸出端數(shù)量:1 輸出電壓（通道 1）:20 V 輸出電流（通道 1）:40 A 商用/醫(yī)用: 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:Rack 長(zhǎng)度: 寬度: 高度: |
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