TDA1013B/N2 Просмотр технического описания (PDF) - Philips Electronics

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TDA1013B/N2

4 W audio power amplifier with DC volume control

Philips Electronics 

Philips Semiconductors

4 W audio power amplifier with

DC volume control

Product specification

TDA1013B

RATINGS

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

SYMBOL

PARAMETER

MIN.

MAX.

VP

IOSM

IORM

Tstg

Tc

Ptot

Supply voltage

−

Non-repetitive peak output current −

Repetitive peak output current

−

Storage temperature range

−55

Crystal temperature

−

Total power dissipation

40

3

1.5

+150

+150

see Fig.2

UNIT

V

A

A

°C

°C

Fig.2 Power derating curve.

HEATSINK DESIGN EXAMPLE

Assume VP = 18 V; RL = 8 Ω; Tamb = 60 °C; Tc = 150 °C (max.); for a 4 W application, the maximum dissipation is

approximately 2.5 W. The thermal resistance from junction to ambient can be expressed as:

Rth j-a = Rth j-tab + Rth tab-h + Rth h-a =

T----j---m---a---x--P--–---m-T---a-a--x-m---b----m----a--x- = 1----5---0-2---.-–-5----6---0-- = 36 K/W

Since Rth j-tab = 9 K/W and Rth tab-h = 1 K/W, Rth h-a = 36 − (9 + 1) = 26 K/W.

July 1994

4

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