TPA2000D2_07 Datasheet, PDF (1/20 Pages) Texas Instruments – 2-W FILTERLESS STEREO CLASS-D AUDIO POWER AMPLIFIER

TPA2000D2
www.ti.com
SLOS291F – MARCH 2000 – REVISED MARCH 2007
2-W FILTERLESS STEREO CLASS-D AUDIO POWER AMPLIFIER
FEATURES
• Modulation Scheme Optimized to Operate
Without a Filter
• 2 W Into 3-Ω Speakers (THD+N< 0.4%)
• < 0.08% THD+N at 1 W, 1 kHz, Into 4-Ω Load
• Extremely Efficient Third Generation 5-V
Class-D Technology:
– Low Supply Current (No Filter) . . . 8 mA
– Low Supply Current (Filter) . . . 15 mA
– Low Shutdown Current . . . 1 µA
– Low Noise Floor . . . 56 µV_RMS
– Maximum Efficiency Into 3 Ω, 65-70%
– Maximum Efficiency Into 8 Ω, 75-85%
– 4 Internal Gain Settings . . . 8-23.5 dB
– PSRR . . . -77 dB
• Integrated Depop Circuitry
• Short-Circuit Protection (Short to Battery,
Ground, and Load)
• -40°C to 85°C Operating Temperature Range
PW OR PWP PACKAGE
(TOP VIEW)
PGND
1
LOUTN
2
GAIN0
3
PV_DD
4
LINN
5
AGND
6
COSC
7
RINN
8
PV_DD
9
SHUTDOWN
10
ROUTN
11
PGND
12
24
PGND
23
LOUTP
22
BYPASS
21
PV_DD
20
LINP
19
V_DD
18
ROSC
17
RINP
16
PV_DD
15
GAIN1
14
ROUTP
13
PGND
DESCRIPTION
The TPA2000D2 is the third generation 5-V class-D amplifier from Texas Instruments. Improvements to previous
generation devices include: lower supply current, lower noise floor, better efficiency, four different gain settings,
smaller packaging, and fewer external components. The most significant advancement with this device is its
modulation scheme that allows the amplifier to operate without the output filter. Eliminating the output filter saves
the user approximately 30% in system cost and 75% in PCB area.
The TPA2000D2 is a monolithic class-D power IC stereo audio amplifier, using the high switching speed of
power MOSFET transistors. These transistors reproduce the analog signal through high-frequency switching of
the output stage. The TPA2000D2 is configured as a bridge-tied load (BTL) amplifier capable of delivering
greater than 2 W of continuous average power into a 3-Ω load at less than 1% THD+N from a 5-V power supply
in the high fidelity range (20 Hz to 20 kHz). With 1 W being delivered to a 4-Ω load at 1 kHz, the typical THD+N
is less than 0.08%.
A BTL configuration eliminates the need for external coupling capacitors on the output. Low supply current of 8
mA makes the device ideal for battery-powered applications. Protection circuitry increases device reliability:
thermal, over-current, and under-voltage shutdown.
Efficient class-D modulation enables the TPA2000D2 to operate at full power into 3-Ω loads at an ambient
temperature of 85°C.
AVAILABLE OPTIONS⁽¹⁾
T_A
–40°C to 85°C
TSSOP (PW)
TPA2000D2PW
PACKAGED DEVICE
TSSOP (PWP)⁽²⁾
TPA2000D2PWP
(1) For the most current package and ordering information, see the Package Option Addendum at the end
of this document, or see the TI web site at www.ti.com.
(2) The PWP package is available taped and reeled. To order a taped and reeled part, add the suffix R to
the part number (e.g., TPA2000D2PWPR).
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 the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2000–2007, Texas Instruments Incorporated