TAS5162 Datasheet, PDF (1/6 Pages) Texas Instruments – 2 x 210 Watt STEREO DIGITAL AMPLIFIER POWER STAGE

TM
TAS5162
www.ti.com
SLES194 – OCTOBER 2006
2 x 210 Watt STEREO DIGITAL AMPLIFIER POWER STAGE
FEATURES
• 2×165 W at 10% THD+N Into 8-Ω BTL
• 2×210 W at 10% THD+N Into 6-Ω BTL
• 1×300 W at 10% THD+N Into 4-Ω PBTL ⁽¹⁾
• >110 dB SNR (A-Weighted, TAS5518
Modulator)
• <0.09% THD+N at 1 W
• Two Thermally Enhanced Package Options:
– DKD (36-pin PSOP3)
– DDV (44-pin HTSSOP)
• High-Efficiency Power Stage (>90%) With
80-mΩ Output MOSFETs
• Power-On Reset for Protection on Power Up
Without Any Power-Supply Sequencing
• Integrated Self-Protection Circuits Including
Undervoltage, Overtemperature, Overload,
Short Circuit
• Error Reporting
• EMI Compliant When Used With
Recommended System Design
• Intelligent Gate Drive
APPLICATIONS
• Mini/Micro Audio System
• DVD Receiver
• Home Theater
TAS5162 does not require power-up sequencing due
to internal power-on reset. The efficiency of this
digital amplifier is greater than 90% into 6 Ω, which
enables the use of smaller power supplies and
heatsinks.
The TAS5162 has an innovative protection system
integrated on-chip, safeguarding the device against a
wide range of fault conditions that could damage the
system. These safeguards are short-circuit
protection, overcurrent protection, undervoltage
protection, and overtemperature protection. The
TAS5162 has a new proprietary current-limiting
circuit that reduces the possibility of device shutdown
during high-level music transients. A new
programmable overcurrent detector allows the use of
lower-cost inductors in the demodulation output filter.
BTL OUTPUT POWER vs SUPPLY VOLTAGE
10
T_C = 75°C
PVDD = 32 V
One Channel
1
4Ω
6Ω
0.1
8Ω
DESCRIPTION
The TAS5162 is a high performance, integrated
stereo digital amplifier power stage with an improved
protection system. The TAS5162 is capable of
driving a 6-Ω bridge-tied load (BTL) at up to 210 W
per channel at THD = 10%, low integrated noise at
the output, low THD+N performance without clipping,
and low idle power dissipation.
A low-cost, high-fidelity audio system can be built
using a TI chipset, comprising a modulator (e.g.,
TAS5508) and the TAS5162. This system only
requires a simple passive LC demodulation filter to
deliver high-quality, high-efficiency audio
amplification with proven EMI compliance. This
device requires two power supplies, at 12 V for
GVDD and VDD, and at 50V for PVDD. The
0.01
1
10
P_O − Output Power − W
100
G001
(1) The DDV package will deliver 300 W peak; however, this
is dependant on system configuration. The smaller pad
area also makes the thermal interface to the heatsink
more important. For multichannel systems that require
two channels to be driven at full power with the DDV
package option, it is recommended to design the system
so that the two channels are in two separate devices.
PurePath Digital™
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 Digital, PowerPad are trademarks of Texas Instruments.
All other trademarks are the property of their respective owners.
PRODUCT PREVIEW information concerns products in the
formative or design phase of development. Characteristic data and
other specifications are design goals. Texas Instruments reserves
the right to change or discontinue these products without notice.
Copyright © 2006, Texas Instruments Incorporated