TMPA421DS Datasheet, PDF (1/20 Pages) List of Unclassifed Manufacturers – 15W + 6W x2 2.1 Channel CLASS-D AUDIO POWER AMPLIFIER

Tai-1 Microelectronics
www.taimec.com.tw / www.class-d.com.tw
Preliminary
TMPA421DS
Rev.2.0 December 20, 2005
15W + 6W × 2 2.1 Channel CLASS-D AUDIO POWER AMPLIFIER
GENERAL DESCRIPTION
FEATURES
The TMPA421DS is a 2.1 Channel Class-D output ^{♦ Integrated 2.1 channel power amplifier in one}
audio power amplifier for driving speakers with _chip
high power efficiency. The bass output is
designed as BTL (Bridge-Tied-Load) for high ^{♦ 15W + 6W × 2}
2.1 Channel Class-D Output
output power. The right& left channels are _{♦ Power efficiency is up to 82%}
designed as SE (Single-Ended). The outputs are
able to drive 4Ω, 6Ω, 8Ω or 16Ω speakers. The ^{♦ Convenient gain control}
output power can be up to 15W for bass and 6W ♦ Time delay for de-pop control
for either Right or Left channel. No external
♦ Thermal Protection
heat-sink is necessary.
♦ Output Pin Short-Circuit Protection (Short to
The gain of the amplifier is defined by either
gain0/gain1 gain control or by input resistance.
Thermal protection and short-circuit protection
are integrated for safety purpose.
Other Outputs, Short to VCC, Short to Ground)
♦ Low Quiescent Current (10mA Typical at 12V)
♦ Low Current in Shutdown Mode (<1µA Typical)
♦ Separate VCC & PVCC
The internal de-pop circuitry eliminates pop
noise at power-up & shutdown operations.
♦ Regulated 5-V Supply Output
APPLICATIONS
For best performance, please refer to
http://www.taimec.com.tw/English/EVM.htm
TMPA421DS is convenient for 2.1 channel ^{http://www.class-d.com.tw/English/EVM.htm}
applications. It can be used for LCD Monitors, for PCB layout.
TVs, DVD Players, Powered Speakers or any 2.1
channel power amplifiers.
PACKAGE
TQFP48L available
Copyright ©2005,Tai-1 Microelectronics Corp.
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