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TPA2005D1ZQYRG1 データシート(PDF) 1 Page - Texas Instruments

部品番号 TPA2005D1ZQYRG1
部品情報  1.4-W MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER
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メーカー  TI1 [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI1 - Texas Instruments

TPA2005D1ZQYRG1 データシート(HTML) 1 Page - Texas Instruments

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1
FEATURES
APPLICATIONS
DESCRIPTION
APPLICATION CIRCUIT
_
+
IN–
IN+
PWM
H–
Bridge
VO+
VO–
Internal
Oscillator
CS
To Battery
VDD
GND
Bias
Circuitry
RI
RI
+
Differential
Input
TPA2005D1
SHUTDOWN
Actual Solution Size
2.5 mm
CS
RI
RI
6 mm
(MicroStar Junior
 BGA)
TPA2005D1
www.ti.com............................................................................................................................................................... SLOS369F – JULY 2002 – REVISED JULY 2008
1.4-W MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER
BGA Package (ZQY)
2
• 1.4 W Into 8 Ω From a 5 V Supply at
3 mm x 5 mm MSOP PowerPAD™ Package
THD = 10% (Typ)
(DGN)
• Maximum Battery Life and Minimum Heat
TPA2010D1 Available in 1,45 mm × 1,45 mm
WCSP (YZF)
Efficiency With an 8-
Ω Speaker:
• Use TPA2006D1 for 1.8 V Logic Compatibility
84% at 400 mW
on Shutdown Pin
79% at 100 mW
2.8-mA Quiescent Current
0.5-
µA Shutdown Current
• Ideal for Wireless or Cellular Handsets and
• Capable of Driving an
PDAs
8-
Ω Speaker (2.5 V ≤ VDD ≤ 5.5 V) and a
4-
Ω Speaker (2.5 V ≤ VDD ≤ 4.2 V)
• Only Three External Components
The TPA2005D1 is a 1.4-W high efficiency filter-free
class-D audio power amplifier in a MicroStar Junior™
Optimized PWM Output Stage Eliminates
BGA, QFN, or MSOP package that requires only
LC Output Filter
three external components.
Internally Generated 250-kHz Switching
Features like 84% efficiency, -71-dB PSRR at 217
Frequency Eliminates Capacitor and
Hz, improved RF-rectification immunity, and 15 mm2
Resistor
total PCB area make the TPA2005D1 ideal for
Improved PSRR (-71 dB at 217 Hz) and
cellular handsets. A fast start-up time of 9 ms with
Wide Supply Voltage (2.5 V to 5.5 V)
minimal pop makes the TPA2005D1 ideal for PDA
Eliminates Need for a Voltage Regulator
applications.
Fully Differential Design Reduces RF
In cellular handsets, the earpiece, speaker phone,
Rectification and Eliminates Bypass
and melody ringer can each be driven by the
Capacitor
TPA2005D1. The device allows independent gain
control by summing the signals from each function
Improved CMRR Eliminates Two Input
while minimizing noise to only 48
µV
RMS.
Coupling Capacitors
• Space Saving Package
The
TPA2005D1
has
short-circuit
and
thermal
protection.
3 mm × 3 mm QFN package (DRB)
2,5 mm × 2,5 mm MicroStar Junior™
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
MicroStar Junior, PowerPAD are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2002–2008, 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.


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