_

+

PWM

H-

IN-

Bridge

Internal

Oscillator

To Battery

GND

Bias

Circuitry

+

-

Differential

Input

TPA2006D1

SHUTDOWN

IN+

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TPA2006D1

SLOS498B – SEPTEMBER 2006 – REVISED SEPTEMBER 2015

TPA2006D1 1.45-W MONO Filter-free Class-D Audio Power Amplifier with 1.8-V

Compatible Input Thresholds

1 Features

2 Applications

Ideal for Wireless or Cellular Handsets and PDAs

1

•

Maximum Battery Life and Minimum Heat

–

Efficiency With an 8-

Ω Speaker:

3 Description

–

88% at 400 mW

The TPA2006D1 device is a 1.45-W high efficiency

–

80% at 100 mW

filter-free class-D audio power amplifier in a 3 mm × 3

mm VSON package that requires only three external

–

2.8-mA Quiescent Current

components. The SHUTDOWN pin is fully compatible

–

0.5-

μA Shutdown Current

with 1.8-V logic GPIO, such as are used on low-

•

SHUTDOWN Pin has 1.8-V Compatible

power cellular chipsets.

Thresholds

Features

like

88%

efficiency,

–75-dB

PSRR,

•

Capable of Driving an

improved RF-rectification immunity, and small total

8-

PCB footprint make the TPA2006D1 device ideal for

4-

cellular handsets. A fast start-up time of 1 ms with

minimal pop makes the TPA2006D1 device ideal for

•

Only Three External Components

PDA applications.

–

Optimized PWM Output Stage Eliminates LC

In cellular handsets, the earpiece, speaker phone,

Output Filter

and melody ringer can each be driven by the

–

Internally Generated 250-kHz Switching

TPA2006D1 device. The TPA2006D1 device allows

Frequency Eliminates Capacitor and Resistor

independent

gain

while

summing

signals

from

–

Improved PSRR (–75 dB) and Wide Supply

separate sources, and has a low 36-

μV noise floor,

Voltage (2.5 V to 5.5 V) Eliminates Need for a

A-weighted.

Voltage Regulator

The TPA2006D1 device has short-circuit and thermal

–

Fully Differential Design Reduces RF

protection.

Rectification and Eliminates Bypass Capacitor

Device Information(1)

–

Improved CMRR Eliminates Two Input

Coupling Capacitors

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TPA2006D1

VSON (8)

3.00 mm ×3.00 mm

•

Space-Saving 3 mm x 3 mm VSON Package

(DRB)

(1) For all available packages, see the orderable addendum at

the end of the datasheet.

Application Circuit

1

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.