1998 Jun 02

8

Philips Semiconductors

Preliminary specification

2

× 1.4 W BTL audio amplifiers with digital

volume control and headphone sensing

TDA8552T; TDA8552TS

LIMITING VALUES

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

THERMAL CHARACTERISTICS

See Section “Thermal design considerations” in Chapter “Test and application information”.

Table 1

Power rating; note 1

Note

copper under the IC package.

SYMBOL

PARAMETER

CONDITIONS

MIN.

MAX.

UNIT

supply voltage

operating

−0.3

+5.5

V

input voltage

−0.3

V

repetitive peak output current

−

1A

storage temperature

−55

+150

°C

operating ambient temperature

−40

+85

°C

AC and DC short-circuit safe voltage

−

5.5

V

maximum power dissipation

SO20

−

2.2

W

SSOP20

−

1.1

W

SYMBOL

PARAMETER

CONDITIONS

VALUE

UNIT

thermal resistance from junction to ambient

for the TDA8552T (SO20)

in free air

60

K/W

extra copper

55

K/W

for the TDA8552TS (SSOP20)

in free air

110

K/W

extra copper

80

K/W

THD = 10%

OPERATION

MUSIC POWER

SO20

SSOP20

3.3

4

0.9

BTL

0.55

120

106

3.3

8

0.6

BTL

0.28

134

127

3.3

16

0.3

BTL

0.14

142

139

3.3

32SE

0.035

headphone

0.03

150

150

5.0

4

2.0

BTL

1.25

81

50

5.0

8

1.4

BTL

0.65

114

98

5.0

16

0.8

BTL

0.32

132

124

5.0

32SE

0.09

headphone

0.07

146

144

continuous sine wave

3.3

4

0.9

BTL

1.1

89

62

5

8

1.4

BTL

1.25

81

50