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Texas Instruments TPA3251
175-W stereo, 350-W mono, 12- to 38-V supply, analog input Class-D Smart Audio Amplifier
Overview
| Topology | Other Topology |
Description
In higher-power class-D amplifiers, generally above 10 W of output power, a filter on the output of the amplifier is required. The filter is passive in nature and uses both an inductor and a capacitor on each output terminal. Therefore, it is referred to as an LC filter. Proper component selection of the LC filter is critical to meet the desired audio performance, efficiency, EMC/EMI requirements, and cost for the end application. This application report serves as a guide to aid in the section of LC filter components for class-D amplifiers to meet target-design goals of the end system.
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | RDC max.(mΩ) | fres(MHz) | Wire Type | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-HCF SMT High Current Inductor, 7 µH, 19.5 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCF SMT High Current Inductor | Inductance7 µH | Performance Rated Current19.5 A | Saturation Current @ 10%27 A | Saturation Current @ 30%30 A | DC Resistance6.17 mΩ | Self Resonant Frequency18 MHz | Wire TypeFlat | ||||
| WE-HCF SMT High Current Inductor, 10 µH, 16.15 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCF SMT High Current Inductor | Inductance10 µH | Performance Rated Current16.15 A | Saturation Current @ 10%22 A | Saturation Current @ 30%23 A | DC Resistance8.76 mΩ | Self Resonant Frequency13 MHz | Wire TypeFlat |