TAS5186A Datasheet, PDF (1/18 Pages) Texas Instruments – 6-Channel, 210-W, Digital-Amplifier Power Stage

TM
TAS5186A
www.ti.com
6-Channel, 210-W, Digital-Amplifier Power Stage
SLES156 – OCTOBER 2005
FEATURES
• Total Output Power @ 10% THD+N
– 5×30 W @ 6 Ω + 1×60 W @ 3 Ω
• 105-dB SNR (A-Weighted)
• 0.07% 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 TAS5186A is a high-performance, six-channel,
digital-amplifier power stage with an improved
protection system. The TAS5186A is capable of
driving a 6-Ω, single­ended 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
performance.
A low-cost, high-fidelity audio system can be built
using a TI chipset comprising a modulator (e.g.,
TAS5086) and the TAS5186A. This device does not
require power-up sequencing because of the internal
power-on reset.
The TAS5186A requires only simple passive
demodulation filters on its outputs to deliver
high-quality, high-efficiency audio amplification. The
device efficiency of the TAS5186A is greater than
90% when driving 6-Ω satellites and a 3-Ω subwoofer
speaker.
The TAS5186A 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 TAS5186A 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.
TOTAL HARMONIC DISTORTION + NOISE
vs
OUTPUT POWER
20
PVDD = 40 V
10 T_C = 75°C
1
6-Ω Satellite
0.1
0.01
0.1
3-Ω Subwoofer
1
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 is a trademark of Texas Instruments.
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