TAS5182_07 Datasheet, PDF (1/18 Pages) Texas Instruments – 100−W STEREO DIGITAL AMPLIFIER POWER STAGE CONTROLLER

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TAS5182
SLES045E - JUNE 2002 - REVISED MAY 2004
100−W STEREO DIGITAL AMPLIFIER POWER STAGE CONTROLLER
FEATURES
D Stereo H-Bridge Controller
D Efficiency > 95%^†
D 2x100 W (RMS) at 6 Ω (BTL)^†
D THD+N < 0.15% (Typical at 100 W at 6 Ω,
1 kHz)^‡
D Half-Bridge Independent Control
D Glueless Interface to TAS50XX Digital Audio
PWM Processors
D 3.3-V Digital Interface
D Fault Detection
- Overcurrent
- Overtemperature
- Undervoltage Protection for External
MOSFETs
D Low Profile 56-Terminal TSSOP SMD Package
APPLICATIONS
D AV Receivers
D High Power DVD Receivers
D Power Amplifiers
D Home Theater
D Subwoofer Driver
DESCRIPTION
The TAS5182 device is a high-performance, stereo digital
amplifier power stage controller. It is designed to drive two
discrete bridge-tied-load (BTL) MOSFET output stages at
up to 100 W per channel at 6 Ω. The TAS5182 device,
incorporating Texas Instrument’s PurePatht 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, true
digital audio amplification. The efficiency of this digital
amplifier can be greater than 95%, reducing the size of
both the power supplies and heat sinks needed. The
TAS5182 device accepts a stereo PWM 3.3-V input, and
it 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, and
other fault conditions that could damage the system.
Typical Stereo Audio System Using TAS5182 H-Bridge Driver
L
Digital
Audio
• TI DAP
• TI DSP
• TI SPD IF
• TI 1394
R
L
TAS50XX
R
TAS5182
Left
Right
LOAD
LOAD
Texas Instruments
Digital Audio
Solutions
PWM Modulator
H-Bridge Driver
Discrete MOSFET
H-Bridges
† When using appropriate MOSFETs.
‡ When using recommended design.
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.
PurePath and PowerPAD are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
Copyright  2003, Texas Instruments Incorporated