Ratings, Heatsink design – Philips TDA1015 User Manual

Page 4

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November 1982

4

Philips Semiconductors

Product specification

1 to 4 W audio power amplifier

TDA1015

RATINGS

Limiting values in accordance with Absolute Maximum System (IEC 134)

HEATSINK DESIGN

Assume V

P

= 12 V; R

L

= 4

; T

amb

= 45

°

C maximum.

The maximum sine-wave dissipation is 1,8 W.

R

th j-a

= R

th j-tab

+ R

th tab-h

+ R

th h-a

=

= 58 K/W.

Where R

th j-a

of the package is 45 K/W, so no external heatsink is required.

Supply voltage

V

P

max.

18

V

Peak output current

I

OM

max.

2,5

A

Total power dissipation

see derating curve Fig.2

Storage temperature

T

stg

55 to + 150

°

C

Operating ambient temperature

T

amb

25 to + 150

°

C

A.C. short-circuit duration of load

during sine-wave drive; V

P

= 12 V

t

sc

max.

100

hours

Fig.2 Power derating curve.

150

45

1 8

,

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