This power module generates all voltages to supply a class-D audio amplifier. The main output voltage is 36V and delivers 200W continuously and 840W peak. The first stage is a power-factor corrected Boost. A Flyback converter supplies 12V on primary side as well as 12V@300mA and 3.3V@200mA on secondary side. A hardware switch + remote input let the converter enter in stand-by mode: in this status the 36V output is disabled and 12V, 3.3V are "always on". This way the stand-by power is reduced down to 150mW @ 115Vac and 270mW @ 230Vac. A second digital input switches the main output voltage from 36V to 18V, allowing low current consumption mode in case of the audio amplifier needs less power.
| Output voltage options | PMP10215.1 | PMP10215.2 | PMP10215.3 | PMP10215.4 |
|---|---|---|---|---|
| Vin (Min) (V) | 85 | 120 | 10 | 350 |
| Vin (Max) (V) | 264 | 430 | 14 | 430 |
| Vout (Nom) (V) | 400 | 12 | 3.3 | 36 |
| Iout (Max) (A) | .55 | .3 | .2 | 15 |
| Output Power (W) | 220 | 3.6 | .66 | 540 |
| Isolated/Non-Isolated | Non-Isolated | Isolated | Non-Isolated | Isolated |
| Input Type | AC | DC | DC | DC |
| Topology | Boost- CCM | Flyback- DCM | Buck- Synchronous | Forward- 2 Switch |
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
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Design file that contains information on physical board layer of design PCB
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Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Test report | PMP10215 Test Results | May 03, 2016 | |
| Application note | Designing With the Improved TL431LI (Rev. A) | Jun. 28, 2019 | ||
| More literature | High-Power Audio Amplifiers TPA322x/4x/5x | Dec. 01, 2017 |
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