TEXAS INSTRUMENTS TPA0253 Technical data

TPA0253

1-W MONO AUDIO POWER AMPLIFIER

WITH HEADPHONE DRIVE

SLOS280D – JANUARY 2000 – REVISED NOVEMBER 2002

DD

DGQ PACKAGE

(TOP VIEW)

1
2
3
4
5

10

9
8
7
6

LO/MO–
LIN
GND
ST/MN
RO/MO+

D Ideal for Notebook Computers, PDAs, and

Other Small Portable Audio Devices

D 1 W Into 8-Ω From 5-V Supply
D 0.3 W Into 8-Ω From 3-V Supply
D Stereo Head Phone Drive
D Mono (BTL) Signal Created by Summing

Left and Right Signals Internally

FILT_CAP

SHUTDOWN

V

BYPASS

RIN

D Wide Power Supply Compatibility

2.5 V to 5.5 V

D Low Supply Current

– 3.2 mA Typical at 5 V
– 2.7 mA Typical at 3 V

D Shutdown Control ...1 µA Typical
D Shutdown Pin Is TTL Compatible
D –40°C to 85°C Operating Temperature

Range

D Space-Saving, Thermally-Enhanced MSOP

Packaging

description

The TPA0253 is a 1-W mono bridge-tied-load (BTL) amplifier designed to drive speakers with as low as 8-Ω
impedance. The mono signal is created by summing left and right inputs internally. The amplifier can be
reconfigured on the fly to drive two stereo single-ended (SE) signals into headphones. This makes the device
ideal for use in small notebook computers, PDAs, digital personal audio players, anyplace a mono speaker and
stereo headphones are required. From a 5-V supply , the TPA0253 can deliver 1-W of power into an 8-Ω speaker .

The gain of the input stage is set by the user-selected input resistor and a 50-kΩ internal feedback resistor
(A

= – RF/RI). The power stage is internally configured with a gain of –1.25 V/V in SE mode, and –2.5 V/V in

V

BTL mode. Thus, the overall gain of the amplifier is 62.5 kΩ/R

in SE mode and 125 kΩ/RI in BTL mode. The

I

input terminals are high-impedance CMOS inputs, and can be used as summing nodes.
The TPA0253 is available in the 10-pin thermally-enhanced MSOP package (DGQ) and operates over an

ambient temperature range of –40°C to 85°C.

AVAILABLE OPTIONS

PACKAGED DEVICES

T

A

–40°C to 85°C TPA0253DGQ AEL

†

The DGQ package are available taped and reeled. To order a taped and reeled part, add the
suffix R to the part number (e.g., TPA0253DGQR).

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

MSOP

(DGQ)

†

MSOP

SYMBOLIZATION

PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Copyright  2002, Texas Instruments Incorporated

1

TPA0253
1-W MONO AUDIO POWER AMPLIFIER
WITH HEADPHONE DRIVE

SLOS280D – JANUARY 2000 – REVISED NOVEMBER 2002

schematic

V

DD

V

DD

3

4

BYPASS

C

BYP

GND

8

1 µF

Right
Audio
Input

Left
Audio
Input

From
System Control

C

i

C

i

1

FILT_CAP

5

RIN

R

i

R

i

9

LIN

2

SHUTDOWN

50 kΩ

M
U
X

BYPASS

50 kΩ

M
U
X

BYPASS

Shutdown

and Depop

Circuitry

50 kΩ

–

+

50 kΩ

50 kΩ

–

+

BYPASS

R

BYPASS

R

BYPASS

1.25*R

–

+

Stereo/Mono

Control

1.25*R

–

+

RO/MO+

ST/MN

LO/MO–

100 kΩ

C

6

7

10

V

DD

C

100 kΩ

C

C

1 kΩ

2

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

1-W MONO AUDIO POWER AMPLIFIER

Terminal Functions

TPA0253

WITH HEADPHONE DRIVE

SLOS280D – JANUARY 2000 – REVISED NOVEMBER 2002

TERMINAL

NAME NO.

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

V

DD

I/O

low, the amplifier is in BTL mono mode.

3 I Positive power supply

DESCRIPTION

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

Supply voltage, V
Input voltage range, V

Continuous total power dissipation internally limited (see Dissipation Rating Table). . . . . . . . . . . . . . . . . . . . .

Operating free-air temperature range, T
Operating junction temperature range, T
Storage temperature range, T

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.

6 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DD

–0.3 V to VDD +0.3 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

I

(see Table 3) –40°C to 85°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A

–40°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

stg

J

†

PACKAGE

DGQ 2.14 W

‡

Please see the Texas Instruments document, PowerP AD 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 T exas Instruments Recommended Board for PowerPAD
on page 33 of that document.

PowerPAD is a trademark of Texas Instruments.

TA ≤ 25°C DERATING FACTOR TA = 70°C TA = 85°C

DISSIPATION RATING TABLE

§

17.1 mW/°C 1.37 W 1.11 W

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

3

TPA0253

High level in ut voltage, V

IH

V

Low level in ut voltage, V

IL

V

Á

Á

Á

Á

Á

Á

Á

Á

Á

Á

Á

Á

Á

Á

Á

Á

Á

Á

Á

1-W MONO AUDIO POWER AMPLIFIER
WITH HEADPHONE DRIVE

SLOS280D – JANUARY 2000 – REVISED NOVEMBER 2002

recommended operating conditions

MIN MAX UNIT

Supply voltage, V

High-level input voltage, V

DD

IH

ST/MN

VDD = 3 V 2.7
VDD = 5 V 4.5

SHUTDOWN 2

VDD = 3 V 1.65
VDD = 5 V 2.75

Low-level input voltage, V

IL

ST/MN
SHUTDOWN 0.8

Operating free-air temperature, T

A

electrical characteristics at specified free-air temperature, VDD = 3 V , TA = 25°C (unless otherwise
noted)

PARAMETER TEST CONDITIONS

|VOO|
PSRR

Output offset voltage (measured differentially)
Power supply rejection ratio

|IIH| High-level input current

|IIL| Low-level input current
Z

I

I

DD

I

DD(SD)

R

F

ÁÁ

Input impedance
Supply current
Supply current, shutdown mode

Feedback resistor

ББББББББББ

RL = 4 Ω, ST/MN = 0 V, SHUTDOWN = 2 V
VDD = 2.9 V to 3.1 V, BTL mode
SHUTDOWN, VDD = 3.3 V, VI = V
ST/MN

, VDD = 3.3 V, VI = V

DD
DD

SHUTDOWN, VDD = 3.3 V, VI = 0 V
ST/MN

, VDD = 3.3 V, VI = 0 V

VDD = 2.5 V, SHUTDOWN = 2 V
SHUTDOWN = 0 V

VDD = 2.5 V, RL = 4 Ω, ST/MN = 1.375 V,
SHUTDOWN

ББББББББББ

= 2 V

MIN TYP MAX UNIT

Á

47

2.5

–40

65

50

2.7

50

Á

5.5

V

V

V

85

°C

30

mV

dB

1

µA

1
1

µA

1

kΩ

4

mA

1

10

µA

57

Á

kΩ

Á

operating characteristics, VDD = 3 V, T

= 25°C, R

A

= 8 Ω, f = 1 kHz (unless otherwise noted)

L

PARAMETER TEST CONDITIONS

P

O

ÁÁ

THD + N

ÁÁ

B

OM

V

n

Output power, see Note 1

ББББББББ

Total harmonic distortion plus
noise

ББББББББ

Maximum output power bandwidth

Supple ripple rejection ratio

Noise output voltage

p

THD = 0.1%,
THD = 0.1%

ÁÁÁ

Gain = 1.9 dB
PO = 250 mW,

ÁÁÁ

Gain = 1.9 dB,

f = 1 kHz,

C

= 0.47 µF,

(BYP)

BTL mode, Gain = 14 dB
SE mode, RL = 32 Ω

ББББББББ

f = 20 Hz to 20 kHz

БББББ

THD = 2%

C

= 0.47 µF

(BYP)

f = 20 Hz to 20 kHz

NOTE 1: Output power is measured at the output terminals of the device at f = 1 kHz.

MIN TYP MAX UNIT

ÁÁÁ

ÁÁÁÁÁÁ

BTL mode
SE mode
BTL mode

SE mode

300

30

0.2%
20

46
68
83

33

mW

ÁÁÁ

ÁÁÁ

kHz

dB

µV

RMS

4

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPA0253

ББББББББББББ

Á

Á

Á

Á

Á

Á

1-W MONO AUDIO POWER AMPLIFIER

WITH HEADPHONE DRIVE

SLOS280D – JANUARY 2000 – REVISED NOVEMBER 2002

electrical characteristics at specified free-air temperature, VDD = 5 V , TA = 25°C (unless otherwise
noted)

PARAMETER TEST CONDITIONS

|VOO|
PSRR

Output offset voltage (measured differentially)
Power supply rejection ratio

|IIH| High-level input current

|IIL| Low-level input current
Z

I

I

DD

I

DD(SD)

Input impedance
Supply current
Supply current, shutdown mode

RL = 4 Ω, ST/MN = 0 V, SHUTDOWN = 2 V
VDD = 4.9 V to 5.1 V, BTL mode
SHUTDOWN, VDD =5.5 V, VI = V
ST/MN

, VDD = 5.5 V, VI = V

DD
DD

SHUTDOWN, VDD = 5.5 V, VI = 0 V
ST/MN

, VDD = 5.5 V, VI = 0 V

SHUTDOWN = 2 V
SHUTDOWN = 0 V

MIN TYP MAX UNIT

30

mV

62

50

3.2
1

4.8
10

dB

1

µA

1
1

µA

1

kΩ

mA

µA

operating characteristics, VDD = 5 V, T

= 25°C, R

A

= 8 Ω, f = 1 kHz (unless otherwise noted)

L

PARAMETER TEST CONDITIONS

P

O

THD + N

B

OM

ÁÁ

V

n

Output power (see Note 1)
Total harmonic distortion plus

noise
Maximum output power

БББББББ

bandwidth

Supple ripple rejection ratio

Noise output voltage

THD = 0.1%,
THD = 0.1%,

PO = 1 W,

Gain = 8 dB,

ÁÁÁ

f = 1 kHz,

C

= 0.47 µF,

(BYP)

BTL mode
SE mode,

f = 20 Hz to 20 kHz

THD = 2%

БББББ

C

= 0.47 µF

(BYP)

f = 20 Hz to 20 kHz

NOTE 1: Output power is measured at the output terminals of the device at f = 1 kHz.

MIN TYP MAX UNIT

RL = 32 Ω

ÁÁÁÁÁÁ

BTL mode
SE mode
BTL mode
SE mode

85

0.33%

20
46

60
85
34

1

ÁÁÁ

µV

W

mW

kHz

dB

RMS

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

5

TPA0253
1-W MONO AUDIO POWER AMPLIFIER
WITH HEADPHONE DRIVE

SLOS280D – JANUARY 2000 – REVISED NOVEMBER 2002

MECHANICAL DATA

DGQ (S-PDSO-G10) PowerPAD PLASTIC SMALL-OUTLINE PACKAGE

0,50

10

1

1,07 MAX

3,05
2,95

0,27

0,17

6

3,05
2,95

5

Seating Plane

0,15

0,05

0,25

4,98
4,78

M

0,10

Thermal Pad
(See Note D)

0,15 NOM

Gage Plane

0°–ā6°

0,25

0,69

0,41

NOTES: A. All linear dimensions are in millimeters.

PowerPAD is a trademark of Texas Instruments.

6

B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion.
D. The package thermal performance may be enhanced by bonding the thermal pad to an external thermal plane.

This pad is electrically and thermally connected to the backside of the die and possibly selected leads. The dimension of the thermal
pad is 1,40 mm (height as illustrated) × 1,80 (width as illustrated) mm (maximum). The pad is centered on the bottom of the package.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

4073273/A 04/98