TPA3000D1 Datasheet, PDF (1/19 Pages) Texas Instruments – 17-W MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER

TPA3000D1
SLOS379A – SEPTEMBER 2001 – REVISED JANUARY 2002
17-W MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER
FEATURES
D 17 W Into 8-Ω Load From 18-V Supply
D Third-Generation Modulation Technique:
– Filter-Free Operation
– Improved Efficiency
– Improved SNR
D Low Supply Current . . . 8 mA Typ at 12 V
D Shutdown Control . . . <1 µA Typ
D Shutdown Pin Is TTL Compatible
D T_A = –40°C to 85°C
D Space-Saving, Thermally-Enhanced
PowerPAD Packaging
APPLICATIONS
D LCD Monitors
D Hands-Free Car Kits
D Powered Speakers
DESCRIPTION
The TPA3000D1 is a 17-W mono bridge-tied load (BTL)
filter-free class-D audio power amplifier with high
efficiency, eliminating the need for heatsinks. The
TPA3000D1 is designed to drive speakers without an
output filter.
The gain of the amplifier is controlled by two input
terminals, GAIN1 and GAIN0. This allows the amplifier
to be configured for a gain of 12, 18, 23.6, and 36 dB.
The differential input stage provides high common
mode rejection and improved power supply rejection.
The amplifier also includes depop circuitry to reduce the
amount of turnon pop at power-up and when cycling
SHUTDOWN.
The TPA3000D1 is available in the 24-pin thermally
enhanced TSSOP package (PWP) which eliminates the
need for an external heat sink when playing music.
100
90
80
70
60
50
40
30
20
10
0
0
EFFICIENCY
vs
OUTPUT POWER
RL = 8 Ω Speaker
VCC = 15 V
f = 1 kHz
3
6
9
12
15
PO – Output Power – W
OUTPUT POWER
vs
SUPPLY VOLTAGE
17
15
13
11
RL = 8 Ω
9
7
5
VCC = 8 V TO 18 V
f = 1 kHz
Maximum 1% THD+N
3
8
10
12
14
16
18
VCC – Supply Voltage – V
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.
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  2002, Texas Instruments Incorporated
www.ti.com
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