1
FEATURES
APPLICATIONS
DESCRIPTION
PWM_AP
PWM_AN
DVDD
AGND
OUTA
OUTB
OUTC
OUTD
RESET
FAULT
TAS5602
DigitalPWMProcessor
Control
Inputs
IS
2
OUTA_P
OUTA_N
OUTC_P
OUTC_N
VALID
ERROR
PWM_CP
PWM_CN
LC
Filter
LC
Filter
BSA
BSB
DVDD
PVCC
AVCC
GPIO
PGND
BYPASS
BSC
BSD
DGND
VCLAMP_AB
VCLAMP_CD
3-4.2V
10-26V
PWM_BP
PWM_BN
OUTB_P
OUTB_N
OUTD_P
OUTD_N
PWM_DP
PWM_DN
THERM_WARN
SE/BLT
www.ti.com....................................................................................................................................... SLAS585A – FEBRUARY 2008 – REVISED SEPTEMBER 2008
20W STEREO (BTL) DIGITAL AMPLIFIER POWER STAGE
Integrated Self-Protection Circuits Including
Overvoltage, Undervoltage, Overtemperature,
2
Supports Multiple Output Configurations
and Short Circuit With Error Reporting
–
2×20-W into a 8-
BTL Load at 18 V
–
4×10-W into a 4-
SE Load at 18 V
–
2×10W (SE) + 1×20W (BTL) at 18 V
Flat-Panel, Rear-Projection, and CRT TV
Thermally Enhanced Package
–
DCA (56-pin HTTSOP)
Wide Voltage Range: 10V–26V
The TAS5601 is a 20-W (per channel) efficient,
stereo digital amplifier power stage for driving 4
–
No Separate Supply Required for Gate
single-ended speakers, 2 bridge-tied speakers, or
Drive
combination of single and bridge-tied loads. The
Efficient Class-D Operation Eliminates Need
TAS5601 can drive a speaker with an impedance as
for Heat Sinks
low as 4
. The high efficiency, >90% into 8- loads,
Closed Loop Power Stage Architecture
of the TAS5601 eliminates the need for an external
heat sink.
–
Improved PSRR Reduces Power Supply
Performance Requirements
A simple interface to a digital audio PWM processor
is shown below. The TAS5601 is fully protected
–
High Damping Factor Provides for Tighter,
against faults with short-circuit protection and thermal
More Accurate Sound With Improved Bass
protection as well as overvoltage and undervoltage
Response
protection. Faults are reported back to the processor
–
Constant Output Power Over Variation in
to prevent devices from being damaged during
Supply Voltage
overload conditions.
Differential Inputs
SIMPLIFIED APPLICATION CIRCUIT
1
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.
2
System Two, Audio Precision are trademarks of Audio Precision, Inc.
PRODUCTION DATA information is current as of publication date.
Copyright 2008, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.