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TPA2005D1DRBRG4 Arkusz danych(PDF) 1 Page - Texas Instruments

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Numer części TPA2005D1DRBRG4
Szczegółowy opis  MONO Filter-Free Class-D Audio Power Amplifier
Download  42 Pages
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Producent  TI1 [Texas Instruments]
Strona internetowa  http://www.ti.com
Logo TI1 - Texas Instruments

TPA2005D1DRBRG4 Arkusz danych(HTML) 1 Page - Texas Instruments

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_
+
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
Product
Folder
Sample &
Buy
Technical
Documents
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Software
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TPA2005D1
SLOS369G – JULY 2002 – REVISED OCTOBER 2015
TPA2005D1 1.4-W MONO Filter-Free Class-D Audio Power Amplifier
1 Features
3 Description
The TPA2005D1 is a 1.4-W high efficiency filter-free
1
1.4 W Into 8
Ω From a 5 V Supply at
class-D audio power amplifier in a MicroStar Junior™
THD = 10% (Typ)
BGA, QFN, or MSOP package that requires only
Maximum Battery Life and Minimum Heat
three external components.
Efficiency With an 8-
Ω Speaker:
Features
like
84%
efficiency,
–71-dB
PSRR
84% at 400 mW
at 217 Hz, improved RF-rectification immunity, and
15 mm2 total PCB area make the TPA2005D1 ideal
79% at 100 mW
for cellular handsets. A fast start-up time of 9 ms with
2.8-mA Quiescent Current
minimal pop makes the TPA2005D1 ideal for PDA
0.5-
μA Shutdown Current
applications.
Capable of Driving an
In cellular handsets, the earpiece, speaker phone,
8-
Ω Speaker (2.5 V ≤ VDD ≤ 5.5 V) and a
and melody ringer can each be driven by the
4-
Ω Speaker (2.5 V ≤ VDD ≤ 4.2 V)
TPA2005D1. The device allows independent gain
control by summing the signals from each function
Only Three External Components
while minimizing noise to only 48
μVRMS.
Optimized PWM Output Stage Eliminates LC
Output Filter
The
TPA2005D1
has
short-circuit
and
thermal
protection.
Internally Generated 250-kHz Switching
Frequency Eliminates Capacitor & Resistor
Device Information(1)
Improved PSRR (–71 dB at 217 Hz) and
PART NUMBER
PACKAGE
BODY SIZE (NOM)
Wide Supply Voltage (2.5 V to 5.5 V)
HVSSOP (8)
3.00 mm × 3.00 mm
Eliminates Need for a Voltage Regulator
VSON (8)
3.00 mm x 3.00 mm
TPA2005D1
Fully Differential Design Reduces RF
BGA MICROSTAR
2.50 mm x 2.50 mm
JUNIOR (15)
Rectification & Eliminates Bypass Capacitor
Improved CMRR Eliminates Two Input
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Coupling Capacitors
Space Saving Package
Device Layout and Size
3 mm × 3 mm QFN package (DRB)
2.5 mm × 2.5 mm MicroStar Junior™ BGA
Package (ZQY)
3 mm x 5 mm MSOP PowerPAD™ Package
(DGN)
Use TPA2006D1 for 1.8 V Logic Compatibility on
Shutdown Pin
2 Applications
Ideal for Wireless or Cellular Handsets and PDAs
Application Circuit
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.


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