TPA2005D1-Q1 Datasheet, PDF (1/37 Pages) Texas Instruments – 1.4-W MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER

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TPA2005D1-Q1
SLOS474D – AUGUST 2005 – REVISED DECEMBER 2015
TPA2005D1-Q1 1.4-W Mono Filter-Free Class-D Audio Power Amplifier
1 Features
•1 Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results:
– Device Temperature Grade 3 (DRB and DGN
package non T-suffix): -40°C to 85°C Ambient
Operating Temperature Range
– Device Temperature Grade 2 (DGN package
T-suffix): -40°C to 105°C Ambient Operating
Temperature Range
– Device HBM Classification Level 2
– Device CDM Classification Level C5
• 1.4 W Into 8 Ω From a 5-V Supply at
THD = 10% (Typ)
• Maximum Battery Life and Minimum Heat
– Efficiency With an 8-Ω Speaker:
– 84% at 400 mW
– 79% at 100 mW
– 2.8-mA Quiescent Current
– 0.5-μA Shutdown Current
• Only Three External Components
– Optimized PWM Output Stage Eliminates LC
Output Filter
– Internally Generated 250-kHz Switching
Frequency Eliminates Capacitor and Resistor
– Improved PSRR (–71 dB at 217 Hz) and Wide
Supply Voltage (2.5 V to 5.5 V) Eliminates
Need for a Voltage Regulator
– Fully Differential Design Reduces RF
Rectification and Eliminates Bypass Capacitor
– Improved CMRR Eliminates Two Input
Coupling Capacitors
• Space-Saving Packages
– 3 mm x 3 mm SON package (DRB)
– 3 mm x 5 mm MSOP PowerPAD™ Package
(DGN)
3 Description
The TPA2005D1-Q1 is a 1.4-W high-efficiency filter-
free class-D audio power amplifier in a SON or
MSOP package that requires only three external
components.
Features like 84% efficiency, –71-dB PSRR at
217 Hz, improved RF-rectification immunity, and 15-
mm² total PCB area make TPA2005D1-Q1 ideal for
low-power audio applications in infotainment and
cluster.
The device allows for independent gain control by
summing the signals from each function while
minimizing noise to only 48µV_RMS. Additionally, the
TPA2005D1-Q1 offers fast start-up time of 9ms with
minimal pop and has short circuit and thermal
protection.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPA2005D1-Q1
MSOP-PowerPAD (8) 3.00 mm × 3.00 mm
SON (8)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Application Circuit
+ ^RI
Differential
Input
– ^RI
SHUTDOWN
Internal
Oscillator
To Battery
V_DD
C_S
IN–
_
+
IN+
PWM
V_O+
H–
Bridge
V_O–
Bias
Circuitry
GND
TPA2005D1
2 Applications
• Cluster
• Head Unit
• Telematics
• Emergency Call (eCall)
• Noise Generator
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.