TPA2000D2

2-W FILTERLESS STEREO CLASS-D AUDIO POWER AMPLIFIER

SLOS291B – MARCH 2000 – REVISED APRIL 2000

1

POST OFFICE BOX 655303

Without a Filter

Class-D Technology:

– Low Supply Current (No Filter) ...8 mA

– Low Supply Current (Filter) ...15 mA

– Low Shutdown Current ...1

µA

– Low Noise Floor ...56

– Maximum Efficiency into 3

Ω, 65 – 70%

– Maximum Efficiency into 8

Ω, 75 – 85%

– 4 Internal Gain Settings ...8 – 23.5 dB

– PSRR . . . –77 dB

Ground, and Load)

Range

description

The TPA2000D2 is the third generation 5-V class-D amplifier from Texas Instruments. Improvements to

previous generation devices include: lower supply current, lower noise floor, better efficiency, four different gain

settings, smaller packaging, and fewer external components. The most significant advancement with this device

is its modulation scheme that allows the amplifier to operate without the output filter. Eliminating the output filter

saves the user approximately 30% in system cost and 75% in PCB area.

The TPA2000D2 is a monolithic class-D power IC stereo audio amplifier, using the high switching speed of

power MOSFET transistors. These transistors reproduce the analog signal through high-frequency switching

of the output stage. The TPA2000D2 is configured as a bridge-tied load (BTL) amplifier capable of delivering

greater than 2 W of continuous average power into a 3-

Ω load at less than 1% THD+N from a 5-V power supply

in the high fidelity range (20 Hz to 20 kHz). With 1 W being delivered to a 4-

Ω load at 1 kHz, the typical THD+N

is less than 0.08%.

A BTL configuration eliminates the need for external coupling capacitors on the output. Low supply current of

8 mA makes the device ideal for battery-powered applications. Protection circuitry increases device reliability:

thermal, over-current, and under-voltage shutdown.

Efficient class-D modulation enables the TPA2000D2 to operate at full power into 3-

Ω loads at an ambient

temperature of 85

°C.

AVAILABLE OPTIONS

TA

PACKAGED DEVICE

TA

TSSOP (PWP)

–40

°C to 85°C

TPA2000D2PWP

NOTE: The PWP package is available taped and reeled. To

order a taped and reeled part, add the suffix R to the

part number (e.g., TPA2000D2PWPR).

Copyright

© 2000, Texas Instruments Incorporated

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.

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.

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PGND

LOUTN

GAIN0

LINN

AGND

COSC

RINN

SHUTDOWN

ROUTN

PGND

PGND

LOUTP

BYPASS

LINP

ROSC

RINP

GAIN1

ROUTP

PGND

PWP PACKAGE

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