TA8260AH 데이터 시트보기 (PDF) - Toshiba

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TA8260AH

Max Power 40 W BTL × 4CH Audio Power IC

Toshiba 

TA8260AH

7. Junction temperature detecting pin 23

Using temperature characteristic of a band gap circuit and in proportion to junction temperature, pin 23

DC voltage: V23 rises at about +5 mV/°C temperature characteristic. The relation between V23 at Tj = 25°C

and V23x at Tj = x°C is decided by the following expression :

In deciding a heat sink size, a junction temperature can be easily made clear by measuring voltage at this

pin while a backside temperature of IC was so far measured using a thermocouple type thermometer.

Figure 10

8. Cross talk

The cross talk characteristics of the IC is not good between OUT1 and 2, OUT3 and 4.

So we recommend to use by below method.

OUT1, 2

OUT3, 4

L-ch (or R-ch)

R-ch (or L-ch)

And, please refer to below table in case of applying the AUX. IN because it is out to OUT1 and 4.

ex)

OUT1

OUT2

OUT3

OUT4

Front

Rear

Rear

Front

L-ch (or R-ch)

R-ch (or L-ch)

AUX. OUT

―

―

AUX. OUT

8

2002-03-05

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