TMPA2156D2 Datasheet, PDF (1/13 Pages) List of Unclassifed Manufacturers – 0.73W/CH STEREO CLASS-D AUDIO POWER AMPLIFIER

Tai-1 Microelectronics
www.taimec.com.tw
Preliminary
TMPA2156D2
Rev.1.0 September 7, 2005
0.73W/CH STEREO CLASS-D AUDIO POWER AMPLIFIER
GENERAL DESCRIPTION
FEATURES
The TMPA2156D2 is a STEREO class-D audio power amplifier
IC. With SE(Single-Ended) configuration, it delivers up to
0.73W/CH power into a 3 ohms load or 0.6W/CH power into a 4
ohm load or 0.33W/CH power into an 8 ohm load. No external
heat-sink is required.
♦ 2.5V to 6V Single Supply
♦ Up to 0.73W/CH at 5V, 3 ohms
♦ Up to 85% Power Efficiency
♦ Automatic output power control (APC)
For multiple-input applications, independent gain control and
corner frequency can be implemented by summing the input
sources through resistor ratio and input capacitor values.
Automatic voltage gain control makes the best use of battery.
♦ 2.2mA Quiescent Current at 5V
♦ Less Than 0.2uA Shutdown Current
♦ Popless Power-Up, Shutdown and Recovery
♦ Single-Ended output
♦ Thermal Shutoff and Automatic Recovery
Analog input signal is converted into digital output which drives
directly to the speaker. High power efficiency is achieved due to
digital output at the load. The audio information is embedded in
PWM（Pulse Width Modulation）.
♦ Short-Circuit Protection
♦
Package
TSSOP8, SOP8 Available
APPLICATIONS
Multimedia application includes Cellular Phones, PDAs, 2.1
channel, USB audio. It is also ideal for other portable devices
like Wireless Radios.
REFERENCE CIRCUIT
For best performance, please refer to
//www.taimec.com.tw/data/Tmpa2155EVM/tmpa2156d2EVM.pdf
for PCB layout.
Copyright ©2005, Tai-1 Microelectronics Corp.
1
PDF created with pdfFactory trial version www.pdffactory.com