TPA0243

2-W MONO AUDIO POWER AMPLIFIER

WITH HEADPHONE DRIVE

SLOS279A – JANUARY 2000 – REVISED MARCH 2000

3

POST OFFICE BOX 655303

Terminal Functions

TERMINAL

I/O

DESCRIPTION

NAME

NO.

I/O

DESCRIPTION

MONO-IN

1

I

Mono input terminal

SHUTDOWN

2

I

SHUTDOWN places the entire device in shutdown mode when held low. TTL compatible input.

VDD

3

I

VDD is the supply voltage terminal.

BYPASS

4

I

BYPASS is the tap to the voltage divider for internal mid-supply bias. This terminal should be connected

to a 0.1-

µF to 1-µF capacitor.

RIN

5

I

Right-channel input terminal

RO/MO

6

O

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

SR/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.

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.

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

(literature number 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 the before mentioned document.

recommended operating conditions

MIN

MAX

UNIT

Supply voltage, VDD

2.5

5.5

V

ST/MN

VDD = 3 V

2.7

High-level input voltage, VIH

ST/MN

VDD = 5 V

4.5

V

SHUTDOWN

2

ST/MN

VDD = 3 V

1.65

Low-level input voltage, VIL

ST/MN

VDD = 5 V

2.75

V

SHUTDOWN

0.8

Operating free-air temperature, TA

–40

85

°C