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DESCRIPTION

APPLICATIONS

0

10

20

30

40

50

60

70

80

90

0

4

8

12

16

20

EFFICIENCY

vs

OUTPUT POWER

4

Ω

8

Ω

5

7

9

11

13

15

17

19

21

3.6 4

5

6

7

8

9

10

10% THD Maximum

MAXIMUM OUTPUT POWER

vs

LOAD IMPEDANCE

TPA3001D1

SLOS398C – DECEMBER 2002 – REVISED JULY 2006

20-W MONO CLASS-D AUDIO POWER AMPLIFIER

•

20 W Into 8-

Ω Load From 18-V Supply (10%

The

TPA3001D1

(sometimes

referred

to

as

THD+N)

TPA3001) is a 20-W mono bridge-tied load (BTL)

class-D audio power amplifier (class-D amp) with

•

high efficiency, eliminating the need for heat sinks.

to GND, Short Between Outputs)

The TPA3001D1 (TPA3001) can drive 4-

Ω or 8-Ω

•

Third-Generation Modulation Technique:

speakers with only a ferrite bead filter required to

– Replaces Large LC Filter With Small,

reduce EMI.

Low-Cost Ferrite Bead Filter in Most

The gain of the amplifier is controlled by two input

Applications

terminals, GAIN1 and GAIN0. This allows the

– Improved Efficiency

amplifier to be configured for a gain of 12, 18, 23.6,

and 36 dB. The differential input stage provides high

– Improved SNR

common mode rejection and improved power supply

•

Low Supply Current: 8 mA Typ at 12 V

rejection.

•

Shutdown Control: < 1

µA Typ

The amplifier also includes depop circuitry to reduce

•

Space-Saving, Thermally-Enhanced

the amount of pop at power-up and when cycling

PowerPAD™ Packaging

SHUTDOWN.

The TPA3001D1 (TPA3001) is available in the 24-pin

thermally enhanced TSSOP package (PWP) which

•

LCD Monitors/TVs

eliminates the need for an external heat sink.

•

Hands-Free Car Kits

•

Powered Speakers

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.

PowerPAD is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Copyright © 2002–2006, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.