TPA0253

1-W MONO AUDIO POWER AMPLIFIER

WITH HEADPHONE DRIVE

SLOS280D – JANUARY 2000 – REVISED NOVEMBER 2002

3

POST OFFICE BOX 655303

Terminal Functions

TERMINAL

I/O

DESCRIPTION

NAME

NO.

I/O

DESCRIPTION

BYPASS

4

I

Midrail bias voltage

FILT_CAP

1

Terminal used to filter power supply

GND

8

Ground terminal

LIN

9

I

Left-channel input terminal

LO/MO–

10

O

Left-output in SE mode and mono negative output in BTL mode.

RIN

5

I

Right-channel input terminal

RO/MO+

6

O

Right-output in SE mode and mono positive output in BTL mode

SHUTDOWN

2

I

TTL-compatible shutdown terminal

ST/MN

7

I

Selects between stereo and mono mode. When held high, the amplifier is in SE stereo mode; while held

low, the amplifier is in BTL mono mode.

VDD

3

I

Positive power supply

6 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous total power dissipation

internally limited (see Dissipation Rating Table)

. . . . . . . . . . . . . . . . . . . . .

– 40

°C to 85°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

– 40

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–65

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds

260

°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

‡ Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

DISSIPATION RATING TABLE

PACKAGE

TA ≤ 25°C

DERATING FACTOR

TA = 70°C

TA = 85°C

DGQ

2.14 W§

17.1 mW/

°C

1.37 W

1.11 W

‡ Please see the Texas Instruments document, PowerPAD Thermally Enhanced Package Application Report

(SLMA002), for more information on the PowerPAD

 package. The thermal data was measured on a PCB

layout based on the information in the section entitled Texas Instruments Recommended Board for PowerPAD

on page 33 of that document.

PowerPAD is a trademark of Texas Instruments.