SLOS417A − OCTOBER 2003 − REVISED DECEMBER 2003
FEATURES
D Maximum Battery Life and Minimum Heat
− Efficiency With an 8-Ω Speaker:
− 88% at 400 mW
− 80% at 100 mW
− 2.8-mA Quiescent Current
− 0.5-µA Shutdown Current
D Only Three External Components
− 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
D Wafer Chip Scale Packaging (WCSP)
− NanoFreeE Lead-Free (YZF)
− NanoStarE SnPb (YEF)
APPLICATIONS
D Ideal for Wireless or Cellular Handsets and
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
RF-rectification immunity, and 8 mm
2
total PCB area make
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
V
O+
V
O−
Internal
Oscillator
C
S
To Battery
V
DD
GND
Bias
Circuitry
R
I
R
I
+
−
Differential
Input
TPA2010D1
SHUTDOWN
A1 A2 A3
B1 B2 B3
C1 C2 C3
IN+ GND V
O−
V
DD
PV
DD
GND
IN− SHUTDOWN
V
O+
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
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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.
