TDA7057A 데이터 시트보기 (PDF) - Philips Electronics

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TDA7057A

2 × 8 W stereo BTL audio output amplifier with DC volume control

Philips Electronics 

Philips Semiconductors

2 × 8 W stereo BTL audio output amplifier

with DC volume control

Product specification

TDA7057AQ

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).

SYMBOL

VP

IORM

IOSM

Ptot

Tamb

Tstg

Tvj

tsc

Vn

PARAMETER

supply voltage

repetitive peak output current

non-repetitive peak output current

total power dissipation

operating ambient temperature

storage temperature

virtual junction temperature

short-circuit time

input voltage pins 1, 3, 5 and 7

CONDITIONS

Tcase < 60 °C

MIN.

−

−

−

−

−40

−55

−

−

−

MAX.

18

1.25

1.5

22.5

+85

+150

150

1

5

UNIT

V

A

A

W

°C

°C

°C

hr

V

THERMAL CHARACTERISTICS

SYMBOL

Rth j-c

Rth j-a

PARAMETER

thermal resistance from junction to case

thermal resistance from junction to ambient in free air

VALUE

4

40

Power dissipation

Assume VP = 12 V and RL = 16 Ω. The maximum sine wave dissipation is 2 × 1.8 W = 3.6 W.

At Tamb(max) = 60 °C:

Rth tot = (150 − 60)/3.6 = 25 K/W.

Rth tot = Rth j-c + Rth c-hs + Rth hs.

Rth c-hs + Rth hs = 25 − 4 = 21 K/W.

UNIT

K/W

K/W

1998 Apr 07

5

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