Philips TDA7050T-N3-S6, TDA7050T-N3 Datasheet

DATA SH EET

Product specification
File under Integrated Circuits, IC01

July 1994

INTEGRATED CIRCUITS

TDA7050T

Low voltage mono/stereo power
amplifier

July 1994 2

Philips Semiconductors Product specification

Low voltage mono/stereo power amplifier TDA7050T

GENERAL DESCRIPTION

The TDA7050T is a low voltage audio amplifier for small radios with headphones (such as watch, pen and pocket radios)
in mono (bridge-tied load) or stereo applications.

Features

• Limited to battery supply application only (typ. 3 and 4 V)

• Operates with supply voltage down to 1,6 V

• No external components required

• Very low quiescent current

• Fixed integrated gain of 26 dB, floating differential input

• Flexibility in use − mono BTL as well as stereo

• Small dimension of encapsulation (see package design example).

QUICK REFERENCE DATA

PACKAGE OUTLINE

8-lead mini-pack; plastic (SO8; SOT96A); SOT96-1; 1996 July 24.

Supply voltage range V

P

1,6 to 6,0 V

Total quiescent current (at V

P

= 3 V) I

tot

typ. 3,2 mA

Bridge tied load application (BTL)

Output power at RL= 32 Ω

V

P

= 3 V; d

tot

= 10% P

o

typ. 140 mW
D.C. output offset voltage between the outputs |∆V| max. 70 mV
Noise output voltage (r.m.s. value)

at f = 1 kHz; R

S

= 5 kΩ V

no(rms)

typ. 140 µV

Stereo application

Output power at R

L

= 32 Ω

d

tot

= 10%; VP= 3 V P

o

typ. 35 mW

d

tot

= 10%; VP= 4,5 V P

o

typ. 75 mW
Channel separation at R

S

= 0 Ω; f = 1 kHz α typ. 40 dB

Noise output voltage (r.m.s. value)

at f = 1 kHz; RS= 5 kΩ V

no(rms)

typ. 100 µV

July 1994 3

Philips Semiconductors Product specification

Low voltage mono/stereo power amplifier TDA7050T

RATINGS

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

SO PACKAGE DESIGN EXAMPLE

To achieve the small dimension of the encapsulation the SO package is preferred with only 8 pins. Because a heatsink
is not applicable, the dissipation is limited by the thermal resistance of the 8-pin SO encapsulation until:

Supply voltage V

P

max. 6 V

Peak output current I

OM

max. 150 mA
Total power dissipation see derating curve Fig.1
Storage temperature range T

stg

−55 to + 150 °C

Crystal temperature T

c

max. 100 °C
A.C. and d.c. short-circuit duration

at VP= 3,0 V (during mishandling) t

sc

max. 5 s

Fig.1 Power derating curve.

handbook, halfpage

50 0 50 150

400

0

MLB950

100

T ( C)

o

amb

P

tot

(mW)

600

200

T

jmaxTamb

–

R

th j-a

--------------------------------- -

100 60–

160

----------------------

0.25 W==