TPA2005D1-Q1 (正在供货)

汽车类 1.4W 单声道无滤波 D 类音频功率放大器

汽车类 1.4W 单声道无滤波 D 类音频功率放大器 - TPA2005D1-Q1


The TPA2005D1-Q1 device is a 1.4-W high-efficiency filter-free class-D audio power amplifier in a SON or MSOP-PowerPAD 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 48 µVRMS. Additionally, the TPA2005D1-Q1 device offers fast start-up time of 9 ms with minimal pop and has short circuit and thermal protection.

For all available packages, see the orderable addendum at the end of the data sheet.


  • 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% (Typical)
  • 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 × 3 mm SON package (DRB)
    • 3 mm × 5 mm MSOP-PowerPAD Package (DGN)

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参数 与其它产品相比 扬声器放大器(AB 类/D 类)

Analog Supply (V) (Min)
Analog Supply (V) (Max)
Speaker Channels (Max)
Audio Input Type
Output Power (W)
Load (Min) (ohms)
Iq (Typ) (mA)
Iq (Max) (mA)
THD + N @ 1 kHz (%)
Iq per channel (Typ) (mA)
Package Size: mm2:W x L (PKG)
Operating Temperature Range (C)
Control Interface
Shutdown Current (ISD) (uA)
TPA2005D1-Q1 LM48100Q-Q1 TAS2505-Q1 TAS2521
4.5    3    1.5    1.5   
5.5    5    1.95    1.95   
Class D    Class AB    Class D    Class D   
Mono    Mono    Mono    Mono   
Analog Input    Analog Input    Analog Input
Digital Input   
Analog Input
Digital Input   
1.18    2.4    2.6    2   
8    8    4    4   
2.8    4.4       
4.5    10.8       
0.2    0.04       
75    74    47.2    47.2   
2.8    2.2       
14HTSSOP    24VQFN    24VQFN   
8MSOP-PowerPAD: 15 mm2: 4.9 x 3(MSOP-PowerPAD)
See datasheet (SON)   
14HTSSOP: 32 mm2: 6.4 x 5(HTSSOP)    24VQFN: 16 mm2: 4 x 4(VQFN)    24VQFN: 16 mm2: 4 x 4(VQFN)   
-40 to 105
-40 to 85   
-40 to 105    -40 to 105    -40 to 85   
Hardware    I2C    I2C, SPI    I2C
0.5    0.01    0.04    0.04   
Automotive    Automotive    Automotive    Catalog   

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