参数资料
型号: TDA7263
厂商: STMICROELECTRONICS
元件分类: 音频/视频放大
英文描述: 12 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM11
封装: CLIPWATT-11
文件页数: 6/8页
文件大小: 1059K
代理商: TDA7263
BUILT-IN PROTECTION SYSTEMS
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 excessive ambient temperature
can be easily withstood.
2-the heatsink can have a smaller factor of
safety compared with that of a conventional
circuit. There is no device damage in the case
of excessive junction temperature; if for any
reason the junction temperature increases up
to 145
°C. the thermal shutdown simply re-
duces the output power and therefore the
power dissipation.
The maximum allowable power dissipation de-
pends upon the thermal resistance junction-ambi-
ent. Figure 8 shows the dissipable power as a
function of ambient temperature for different
heatsink thermal resistance.
SHORT CIRCUIT (AC CONDITIONS)
The TDA7263 can withstand accidental short cir-
cuits across the speaker made by a wrong con-
nection during normal play operation.
TDA7263
6/8
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TDA7267A 3 W, 1 CHANNEL, AUDIO AMPLIFIER, PDIP16
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