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TAS5182-TAS5182DCA-TAS5182IDCA
Digital Amplifier Power Stage Controller
TAS5182
SLES045E - JUNE 2002 - REVISED MAY 2004
100−W STEREO DIGITAL AMPLIFIER POWER STAGE CONTROLLER
FEATURES Stereo H-Bridge Controller Efficiency > 95%† 2x100 W (RMS) at 6 Ω (BTL)† THD+N < 0.15% (Typical at 100 W at 6 Ω,1 kHz)‡ Half-Bridge Independent Control Glueless Interface to TAS50XX Digital AudioPWM Processors 3.3-V Digital Interface Fault Detection- Overcurrent - Overtemperature - Undervoltage Protection for ExternalMOSFETs Low Profile 56-Terminal TSSOP SMD Package
APPLICATIONS AV Receivers High Power DVD Receivers Power Amplifiers Home Theater Subwoofer Driver
DESCRIPTION The TAS5182 device is a high-performance, stereo digitalamplifier power stage controller. It is designed to drive two
discrete bridge-tied-load (BTL) MOSFET output stages atup to 100 W per channel at 6 Ω. The TAS5182 device,
incorporating Texas Instrument’s PurePath� technology,is used in conjunction with a digital audio PWM processor
(TAS50XX) and two discrete MOSFET H-bridges(4 MOSFETs per H-Bridge) to deliver high-power, truedigital audio amplification. The efficiency of this digital
amplifier can be greater than 95%, reducing the size ofboth the power supplies and heat sinks needed. The
TAS5182 device accepts a stereo PWM 3.3-V input, andit controls the switching of the discrete H-bridges.
Overcurrent, overtemperature, and undervoltage
protections are built into the TAS5182 device,safeguarding the H-bridge and speakers against output
short-circuit conditions, overtemperature conditions, andother fault conditions that could damage the system.
PWM Modulator
H-Bridges
Texas Instruments
Digital Audio
Solutions
Discrete MOSFET L
H-Bridge Driver
Typical Stereo Audio System Using TAS5182 H-Bridge Driver† When using appropriate MOSFETs.
‡ When using recommended design.
www.ti.com
