TPA2010D1

SLOS417A − OCTOBER 2003 − REVISED DECEMBER 2003

2.5W MONO FILTERFREE CLASSD AUDIO POWER AMPLIFIER

FEATURES

− Efficiency With an 8-

Ω Speaker:

− 88% at 400 mW

− 80% at 100 mW

− 2.8-mA Quiescent Current

− 0.5-

µA Shutdown Current

− Optimized PWM Output Stage Eliminates

LC Output Filter

− Internally Generated 250-kHz Switching

Frequency Eliminates Capacitor and

Resistor

− Improved PSRR (−75 dB) and Wide Supply

Voltage (2.5 V to 5.5 V) Eliminates Need

for a Voltage Regulator

− Fully Differential Design Reduces RF

Rectification and Eliminates Bypass

Capacitor

− Improved CMRR Eliminates Two Input

Coupling Capacitors

− NanoFree

E Lead-Free (YZF)

− NanoStar

E SnPb (YEF)

APPLICATIONS

PDAs

DESCRIPTION

The TPA2010D1 is a 2.5-W high efficiency filter-free

class-D audio power amplifier in a 1.45 mm

× 1.45 mm

wafer chip scale package (WCSP) that requires only three

external components.

Features like 88% efficiency, −75-dB PSRR, improved

the TPA2010D1 ideal for cellular handsets. A fast start-up

time of 1 ms with minimal pop makes the TP2010D1 ideal

for PDA applications.

In cellular handsets, the earpiece, speaker phone, and

melody ringer can each be driven by the TPA2010D1. The

TPA2010D1 allows independent gain while summing

signals from seperate sources, and has a low 36

µV noise

floor, A-weighted.

APPLICATION CIRCUIT

_

+

IN−

IN+

PWM

H−

Bridge

VO+

VO−

Internal

Oscillator

CS

To Battery

VDD

GND

Bias

Circuitry

RI

RI

+

−

Differential

Input

TPA2010D1

SHUTDOWN

A1

A2

A3

B1

B2

B3

C1

C2

C3

IN+

GND

VO−

VDD

PVDD

GND

IN−

SHUTDOWN VO+

1,55 mm

9-BALL

WAFER CHIP SCALE

YZF, YEF PACKAGES

TPA2010D1 DIMENSIONS

(TOP VIEW OF PCB)

Note: Pin A1 is marked with a “0” for

Pb−free (YZF) and a “1” for SnPb (YEF).

1,40 mm

1,55 mm

1,40 mm

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.

www.ti.com

Copyright

 2003, Texas Instruments Incorporated

NanoFree and NanoStar are trademarks of Texas Instruments.