lv49152v Sanyo Semiconductor Corporation, lv49152v Datasheet - Page 16

• Manufacturer Part Number: lv49152v
• Description: Bi-cmos Lsi Class-d Audio Power Amplifier Btl 15w ? 2ch
• Manufacturer: Sanyo Semiconductor Corporation

Thermal protection circuit
The LV49152V includes a thermal protection circuit to prevent damage to or destruction of the IC should abnormal
internal heat generation occur.
This means that should the IC junction temperature (Tj) rise above about 175°C due to inadequate heat dissipation or
other reason, the thermal protection circuit will operate to stop IC operation should the temperature rise further.
If the temperature is reduced by lowering the input level or other means, the thermal protection circuit will recover
automatically (about 105°C).
* The thermal protection circuit is a function to avoid the abnormal state temporarily.
Unfortunately, we cannot guarantee that IC is not destroyed.
TSD DET.
TSD DET.
Internal
Internal
PWM
PWM
40
Temperature (Tj) rise
50
60
70
80
90
Junction temperature Tj [°C]
Recovery
100
Function image
LV49152V
110 110
130
Hystsrisis
Temperature (Tj) fall
110
Shut down
150
160 170
Attack
180
Shut
down
190
200
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