TAS5186 Datasheet, PDF (1/17 Pages) Texas Instruments – 6-Channel, 210-W, Digital-Amplifier Power Stage

TM
TAS5186
www.ti.com
6-Channel, 210-W, Digital-Amplifier Power Stage
SLES136 – MAY 2005
FEATURES
• Total Output Power @ 10% THD+N
– 5×30 W @ 6Ω + 1×60 W @ 3Ω
• 105-dB SNR (A-Weighted)
• < 0.05% THD+N @ 1 W
• Power Stage Efficiency > 90% Into
Recommended Loads (SE)
• Integrated Self-Protection Circuits
– Undervoltage
– Overtemperature
– Overload
– Short Circuit
• Integrated Active-Bias Control to Avoid DC
Pop
• Thermally Enhanced 44-pin HTSSOP Package
• EMI-Compliant When Used With
Recommended System Design
APPLICATIONS
• DVD Receiver
• Home Theater in a Box
DESCRIPTION
The TAS5186 is a high-performance, six-channel,
digital-amplifier power stage with an improved protec-
tion system. The TAS5186 is capable of driving a
6-Ω, single-ended load up to 30 W per each
front/satellite channel and a 3-Ω, single-ended
subwoofer greater than 60 W at 10% THD+N per-
formance.
A low-cost, high-fidelity audio system can be built
using a TI chipset comprising a modulator (e.g.,
TAS5086) and the TAS5186. This device does not
require power-up sequencing because of the internal
power-on reset.
The TAS5186 requires only simple passive demodu-
lation filters on its outputs to deliver high-quality,
high-efficiency audio amplification. The efficiency of
the TAS5186 is greater than 90% when driving 6-Ω
satellites and a 3-Ω subwoofer speaker.
The TAS5186 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,
overload protection, undervoltage protection, and
overtemperature protection. The TAS5186 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 demodu-
lation output filter.
TOTAL HARMONIC DISTORTION + NOISE
vs
OUTPUT POWER
20
10
PVDD = 40 V
T_C = 75°C
1
0.1
0.01
1
6 Ω Satellite
3 Ω Subwoofer
10
P_O – Output Power – W
70
G012
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.
PowerPAD, PurePath Digital are trademarks of Texas Instruments.
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2005, Texas Instruments Incorporated