Datasheet Texas Instruments TPA302D — 数据表

TPA302
www.ti.com SLOS174C – JANUARY 1997 – REVISED JUNE 2004 300-mW STEREO AUDIO POWER AMPLIFIER 300-mW Stereo Output
PC Power Supply Compatibility 5-V and
3.3-V Specified Operation
Shutdown Control
Internal Midrail Generation
Thermal and Short-Circuit Protection
Surface-Mount Packaging
Functional Equivalent of the LM4880 D PACKAGE
(TOP VIEW) VO1
SHUTDOWN
BYPASS
IN2 1 8 2 7 3 6 4 5 IN1
GND
VDD
VO2 DESCRIPTION
The TPA302 is a stereo audio power amplifier capable of delivering 250 mW of continuous average power into
an 8-Ω load at less than 0.06% THD+N from a 5-V power supply or up to 300 mW at 1% THD+N. The TPA302
has high current outputs for driving small unpowered speakers at 8 Ω or headphones at 32 Ω. For headphone
applications driving 32-Ω loads, the TPA302 delivers 60 mW of continuous average power at less than 0.06%
THD+N. The amplifier features a shutdown function for power-sensitive applications as well as internal thermal
and short-circuit protection. The amplifier is available in an 8-pin SOIC (D) package that reduces board space
and facilitates automated assembly. TYPICAL APPLICATION CIRCUIT VDD 6 RF …