This reference design contains a boost converter that provides 36.0-V @ 10.0-A continuous / 20.0-A peak from an input voltage of 9 to 16 V. It contains two premium Class-D audio amplifiers which provide 2x 175-W @ 4-Ω load (left and right channel) and 1x 350-W @ 2-Ω (subwoofer). The design is well suited for automotive audio external amplifier applications due to its thin profile and high-power output.
| Output voltage options | PMP11769.1 | PMP11769.2 | PMP11769.3 | PMP11769.4 |
|---|---|---|---|---|
| Vin (Min) (V) | 6 | 35 | 35 | 10 |
| Vin (Max) (V) | 16 | 37 | 37 | 15 |
| Vout (Nom) (V) | 36 | 12 | -12 | 3.3 |
| Iout (Max) (A) | 10 | .2 | .05 | .05 |
| Output Power (W) | 360 | 2.4 | .6 | .165 |
| Isolated/Non-Isolated | Non-Isolated | Non-Isolated | Non-Isolated | Non-Isolated |
| Input Type | DC | DC | DC | DC |
| Topology | Boost | Boost- Non Sync | Buck Boost- Inverting | Linear Regulator |
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
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Test results for the reference design, including efficiency graphs, test prerequisites and more
Detailed schematic diagram for design layout and components
Complete listing of design components, reference designators, and manufacturers/part numbers
Detailed overview of design layout for component placement
Files used for 3D models or 2D drawings of IC components
Design file that contains information on physical board layer of design PCB
PCB layer plot file used for generating PCB design layout
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Test report | PMP11769 Test Results (Rev. A) | Mar. 22, 2017 | |
| Technical article | Automotive audio from the inside out: more channels, more power, more applications | PDF | HTML | Oct. 19, 2018 | |
| More literature | High-Power Audio Amplifiers TPA322x/4x/5x | Dec. 01, 2017 | ||
| Technical article | Get loud with a 700W automotive audio amplifier for infotainment systems | PDF | HTML | Jun. 15, 2017 | |
| More literature | TI Automotive External Amplifiers (Rev. A) | Feb. 03, 2017 |
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