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参数资料
| 型号： | TDA2030V |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 18 W, 1 CHANNEL, AUDIO AMPLIFIER, PZFM5 |
| 封装： | PENTAWATT-5 |
| 文件页数： | 12/12页 |
| 文件大小： | 545K |
| 代理商： | TDA2030V |
SHORT CIRCUIT PROTECTION
The TDA2030 has an original circuit which limits the
current of the output transistors. Fig. 18 shows that
the maximum output current is a function of the
collector emitter voltage; hence the output transis-
tors work within their safe operating area (Fig. 2).
This function can therefore be considered as being
peak power limiting rather than simple current lim-
iting.
It reduces the possibility that the device gets dam-
aged during an accidental short circuit from AC
output to ground.
Fi g ure 1 8. M aximum
ou t pu t
c urr en t
vs.
voltage [VCEsat] across
each output transistor
Figure 19. Safe operating area and
collector characteristics of the
protected power transistor
THERMAL SHUT-DOWN
The presence of a thermal limiting circuit offers the
following advantages:
1. An overload on the output (even if it is perma-
nent), or an above limit ambient temperature can
be easily supported since the Tj cannot be
higher than 150
°C.
2. The heatsink can have a smaller factor of safety
compared with that of a conventional circuit.
There is no possibility of device damage due to
high junction temperature. If for any reason, the
junction temperature increases up to 150
°C, the
thermal shut-down simply reduces the power
dissipation at the current consumption.
The maximum allowable power dissipation de-
pends upon the size of the external heatsink (i.e. its
thermal resistance); fig. 22 shows this dissipable
power as a function of ambient temperature for
different thermal resistance.
TDA2030
9/12
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TDA2030V | 制造商:STMicroelectronics 功能描述:IC AUDIO AMP 14W |
| TDA2030音频功率放大器 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:TDA2030音频功率放大器 |
| TDA2039 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:TDA2039具有静音和待机功能的8W单声道或4W双声道音频功放电路. |
| TDA2039A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:TDA2039 是一块具有静音和待机功能的8W 单声道或4W 双声道音频功放电路，该电路最适合用在多媒体音响和电视伴音系统。TDA2039A可以根据要求使用立体声和BTL 单声道功能，TDA2039B只能使用BTL 单声道功能。 |
| TDA2040 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:20W Hi-Fi AUDIO POWER AMPLIFIER |
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