Texas Instruments TPA6104A2 Data Sheet

SLOS331C − AUGUST 2000 − REVISED MARCH 2007

Minimal External Components Required D or DGK PACKAGE (TOP VIEW)

1.6-V to 3.6-V Supply Voltage Range 50-m W Stereo Output BYPASS IN1−

Low Supply Current 0.75 m A GND VO1

SHUTDOWN VDD

Low Shutdown Current 50 n A

IN2− VO2

Gain Set Internally to 2 d B Pop Reduction Circuitry

ZQY PACKAGE

Internal Mid-Rail Generation

(TOP VIEW)

Thermal and Short-Circuit Protection

Surface-Mount Packaging BYPASS IN1− − 3-mm
5-mm MSOP Package (DGN) (B1) (B4)

GND VO1

− 5-mm
6-mm SOIC Package (D)

− 2,5-mm
2,5-mm Micro Star Junior BGA VDDSHUTDOWN Package (ZQY) (D1) (D4)

IN2− VO2

description The TPA6101A2 is a stereo audio power amplifier packaged in an 8-pin SOIC package, an 8-pin MSOP package, or a 15-ball BGA package, capable of delivering 50 m W of continuous RMS power per channel into 16-Ω loads. Amplifier gain is internally set to 2 d B (inverting) to save board space by eliminating six external resistors. The TPA6101A2 is optimized for battery applications because of its low supply current, shutdown current, and THD+N. To obtain the low-supply-voltage range, the TPA6101A2 biases BYPASS to VDD/4. When driving a 16-Ω load with 40-m W output power from 3.3 V, THD+N is 0.08% at 1 k Hz, and less than 0.2% across the audio band of 20 Hz to 20 k Hz. For 30 m W into 32-Ω loads, the THD+N is reduced to less than 0.06% at 1 k Hz, and is less than 0.3% across the audio band of 20 Hz to 20 k Hz.

typical application circuit

VDD/4 CS

80 kΩ Audio IN1− RI

Input

CI 80 kΩ

BYPASS

CB RI Audio IN2− 80 kΩ

Input

CC80 kΩ

From Shutdown SHUTDOWN Bias

Control Circuit Control

RF All internal resistor 80 kΩNOTE:

values are ±20%.

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.

Micro Star BGA is a trademark of Texas Instruments.

1POST OFFICE BOX 655303 • DALLAS, TEXAS 75265