TDA7057AQ datasheet(5/16 Pages) PHILIPS

No de pièce	TDA7057AQ

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

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Fabricant	PHILIPS [NXP Semiconductors]

Site Internet	http://www.nxp.com

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5 / 16 page

1998 Apr 07

5

Philips Semiconductors

Product speciﬁcation

2

× 8 W stereo BTL audio output ampliﬁer

with DC volume control

TDA7057AQ

LIMITING VALUES

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

THERMAL CHARACTERISTICS

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.

SYMBOL

PARAMETER

CONDITIONS

MIN.

MAX.

UNIT

VP

supply voltage

−

18

V

IORM

repetitive peak output current

−

1.25

A

IOSM

non-repetitive peak output current

−

1.5

A

Ptot

total power dissipation

Tcase <60 °C

−

22.5

W

Tamb

operating ambient temperature

−40

+85

°C

Tstg

storage temperature

−55

+150

°C

Tvj

virtual junction temperature

−

150

°C

tsc

short-circuit time

−

1hr

Vn

input voltage pins 1, 3, 5 and 7

−

5V

SYMBOL

PARAMETER

VALUE

UNIT

Rth j-c

thermal resistance from junction to case

4

K/W

Rth j-a

thermal resistance from junction to ambient in free air

40

K/W

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