TPA2012D2_15 Datasheet, PDF (1/23 Pages) Texas Instruments – 2.1 W/CH STEREO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER

YZH
RTJ
TPA2012D2
www.ti.com .................................................................................................................................................. SLOS438D – DECEMBER 2004 – REVISED JUNE 2008
2.1 W/CH STEREO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER
FEATURES
1
•2 Output Power By Package:
– QFN:
– 2.1 W/Ch Into 4 Ω at 5 V
– 1.4 W/Ch Into 8 Ω at 5 V
– 720 mW/Ch Into 8 Ω at 3.6 V
– WCSP:
– 1.2 W/Ch Into 4 Ω at 5 V⁽¹⁾
– 1.3 W/Ch Into 8 Ω at 5 V
– 720 mW/Ch Into 8 Ω at 3.6 V
• Only Two External Components Required
• Power Supply Range: 2.5 V to 5.5 V
• Independent Shutdown Control for Each
Channel
• Selectable Gain of 6, 12, 18, and 24 dB
• Internal Pulldown Resistor On Shutdown Pins
• High PSRR: 77 dB at 217 Hz
• Fast Startup Time (3.5 ms)
• Low Supply Current
• Low Shutdown Current
• Short-Circuit and Thermal Protection
• Space Saving Packages
– 2,01 mm X 2,01 mm NanoFree™ WCSP
(YZH)
– 4 mm X 4 mm Thin QFN (RTJ) with
PowerPAD™
(1) _{Thermally limited}
APPLICATIONS
• Wireless or Cellular Handsets and PDAs
• Portable DVD Player
• Notebook PC
• Portable Radio
• Portable Gaming
• Educational Toys
• USB Speakers
DESCRIPTION
The TPA2012D2 is a stereo, filter-free, Class-D audio
amplifier (class-D amp) available in a WCSP, QFN, or
PWP package. The TPA2012D2 only requires two
external components for operation.
The TPA2012D2 features independent shutdown
controls for each channel. The gain can be selected
to 6, 12, 18, or 24 dB utilizing the G0 and G1 gain
select pins. High PSRR and differential architecture
provide increased immunity to noise and RF
rectification. In addition to these features, a fast
startup time and small package size make the
TPA2012D2 class-D amp an ideal choice for both
cellular handsets and PDAs.
2.50
WCSP Thermally Limited Region
2
1.50
1
V_DD = 2.5 V, 1%
V_DD = 2.5 V, 10%
V_DD = 3.6 V, 1%
V_DD = 3.6 V, 10%
V_DD = 5 V, 1%
V_DD = 3.6 V, 10%
0.50
0
4
9
14 19 24 29 34
R_L − Load Resistance − W
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.
NanoFree, PowerPAD are trademarks of Texas Instruments.
2
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 © 2004–2008, Texas Instruments Incorporated