Texas Instruments TPA3251 | Demoboard SLAA701A | Würth Elektronik Reference Design Search

Overview

Topology	Other Topology
IC revision	A

Description

In higher-power class-D amplifiers, generally above 10 W of output power, a filter on the output of theamplifier is required. The filter is passive in nature and uses both an inductor and a capacitor on eachoutput terminal. Therefore, it is referred to as an LC filter. Proper component selection of the LC filter iscritical to meet the desired audio performance, efficiency, EMC/EMI requirements, and cost for the endapplication. This application report serves as a guide to aid in the section of LC filter components forclass-D amplifiers to meet target-design goals of the end system.

More information

IC product information

Products

Order Code	Datasheet	Downloads	Status	Product series	L (µH)	I_RP,40K (A)	I_SAT,10% (A)	I_SAT,30% (A)	R_DC (mΩ)	f_res (MHz)	Material	R_{DC max.} (mΩ)
7443556680	SPEC PCN pending Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. SPEC Datasheet valid to 05/02/2025 SPEC Datasheet valid from 06/02/2025	8 files EDA models: Components ZIP ALT WE-HCI (rev22c).IntLib \| 1.2 MB ZUK Download_CadStar_WE-HCI (rev19a).zip \| 15.7 KB CDS Cadence_WE-HCI (rev22a).zip \| 8.3 MB EAG Eagle_WE-HCI (rev19a).lbr \| 126.2 KB CAD files ZIP IGS WE-HCI_1890_7443556 (rev1).igs \| 2 MB STP WE-HCI_1890_7443556 (rev1).stp \| 615.4 KB Electric models ZIP PSP PSpice_WE-HCI (rev22a).zip \| 22.1 KB SCS Spectre_WE-HCI (rev24a).mod \| 26.8 KB Download all 8 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-HCI SMT Flat Wire High Current Inductor	6.8	22	13	27	4.1	24	WE-PERM 2	4.428
7443630700	SPEC	8 files EDA models: Components ZIP ALT WE-HCF (rev23a).IntLib \| 651 KB ZUK Download_CadStar_WE-HCF (rev20a).zip \| 12.8 KB CDS Cadence_WE-HCF (rev23a).zip \| 10.3 MB EAG Eagle_WE-HCF (rev24a).lbr \| 99.2 KB CAD files ZIP IGS Download_IGS_744363xxxx (rev1).igs \| 1.7 MB STP Download_STP_744363xxxx (rev1).stp \| 658.3 KB Electric models ZIP PSP PSpice_WE-HCF (rev22a).zip \| 11.4 KB SCS Spectre_WE-HCF (rev24a).mod \| 12.4 KB Download all 8 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-HCF SMT High Current Inductor	7	19.5	27	30	5.61	18	MnZn	6.17
7443551730	SPEC PCN pending Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. SPEC Datasheet valid to 05/02/2025 SPEC Datasheet valid from 06/02/2025	8 files EDA models: Components ZIP ALT WE-HCI (rev22c).IntLib \| 1.2 MB ZUK Download_CadStar_WE-HCI (rev19a).zip \| 15.7 KB CDS Cadence_WE-HCI (rev22a).zip \| 8.3 MB EAG Eagle_WE-HCI (rev19a).lbr \| 126.2 KB CAD files ZIP IGS WE-HCI_1365_7443551 (rev1).igs \| 1.7 MB STP WE-HCI_1365_7443551 (rev1).stp \| 514.9 KB Electric models ZIP PSP PSpice_WE-HCI (rev22a).zip \| 22.1 KB SCS Spectre_WE-HCI (rev24a).mod \| 26.8 KB Download all 8 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-HCI SMT Flat Wire High Current Inductor	7.3	16.5	5.5	12	5.9	28	WE-PERM	6.49
7443557760	SPEC PCN pending Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. SPEC Datasheet valid to 05/02/2025 SPEC Datasheet valid from 06/02/2025	8 files EDA models: Components ZIP ALT WE-HCI (rev22c).IntLib \| 1.2 MB ZUK Download_CadStar_WE-HCI (rev19a).zip \| 15.7 KB CDS Cadence_WE-HCI (rev22a).zip \| 8.3 MB EAG Eagle_WE-HCI (rev19a).lbr \| 126.2 KB CAD files ZIP IGS WE-HCI_1890_7443557 (rev1).igs \| 2 MB STP WE-HCI_1890_7443557 (rev1).stp \| 582.9 KB Electric models ZIP PSP PSpice_WE-HCI (rev22a).zip \| 22.1 KB SCS Spectre_WE-HCI (rev24a).mod \| 26.8 KB Download all 8 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-HCI SMT Flat Wire High Current Inductor	7.6	22.8	19	22	3.75	20	MnZn	4
74435561100	SPEC PCN pending Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. SPEC Datasheet valid to 05/02/2025 SPEC Datasheet valid from 06/02/2025	8 files EDA models: Components ZIP ALT WE-HCI (rev22c).IntLib \| 1.2 MB ZUK Download_CadStar_WE-HCI (rev19a).zip \| 15.7 KB CDS Cadence_WE-HCI (rev22a).zip \| 8.3 MB EAG Eagle_WE-HCI (rev19a).lbr \| 126.2 KB CAD files ZIP IGS WE-HCI_1890_7443556 (rev1).igs \| 2 MB STP WE-HCI_1890_7443556 (rev1).stp \| 615.4 KB Electric models ZIP PSP PSpice_WE-HCI (rev22a).zip \| 22.1 KB SCS Spectre_WE-HCI (rev24a).mod \| 26.8 KB Download all 8 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-HCI SMT Flat Wire High Current Inductor	10	16.5	10	21.5	6.9	14	WE-PERM 2	7.452
74435571100	SPEC PCN pending Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. SPEC Datasheet valid to 05/02/2025 SPEC Datasheet valid from 06/02/2025	8 files EDA models: Components ZIP ALT WE-HCI (rev22c).IntLib \| 1.2 MB ZUK Download_CadStar_WE-HCI (rev19a).zip \| 15.7 KB CDS Cadence_WE-HCI (rev22a).zip \| 8.3 MB EAG Eagle_WE-HCI (rev19a).lbr \| 126.2 KB CAD files ZIP IGS WE-HCI_1890_7443557 (rev1).igs \| 2 MB STP WE-HCI_1890_7443557 (rev1).stp \| 582.9 KB Electric models ZIP PSP PSpice_WE-HCI (rev22a).zip \| 22.1 KB SCS Spectre_WE-HCI (rev24a).mod \| 26.8 KB Download all 8 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-HCI SMT Flat Wire High Current Inductor	10	16.4	8.8	18.5	6.9	16	MnZn	7.45
7443631000	SPEC	8 files EDA models: Components ZIP ALT WE-HCF (rev23a).IntLib \| 651 KB ZUK Download_CadStar_WE-HCF (rev20a).zip \| 12.8 KB CDS Cadence_WE-HCF (rev23a).zip \| 10.3 MB EAG Eagle_WE-HCF (rev24a).lbr \| 99.2 KB CAD files ZIP IGS Download_IGS_744363xxxx (rev1).igs \| 1.7 MB STP Download_STP_744363xxxx (rev1).stp \| 658.3 KB Electric models ZIP PSP PSpice_WE-HCF (rev22a).zip \| 11.4 KB SCS Spectre_WE-HCF (rev24a).mod \| 12.4 KB Download all 8 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-HCF SMT High Current Inductor	10	16.15	22	23	7.96	13	MnZn	8.76

	Order Code	Datasheet	Simulation
	7443556680	SPEC PCN pending Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. SPEC Datasheet valid to 05/02/2025 SPEC Datasheet valid from 06/02/2025
	7443630700	SPEC
	7443551730	SPEC PCN pending Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. SPEC Datasheet valid to 05/02/2025 SPEC Datasheet valid from 06/02/2025
	7443557760	SPEC PCN pending Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. SPEC Datasheet valid to 05/02/2025 SPEC Datasheet valid from 06/02/2025
	74435561100	SPEC PCN pending Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. SPEC Datasheet valid to 05/02/2025 SPEC Datasheet valid from 06/02/2025
	74435571100	SPEC PCN pending Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. SPEC Datasheet valid to 05/02/2025 SPEC Datasheet valid from 06/02/2025
	7443631000	SPEC

Samples

	Order Code	Datasheet	Simulation	Downloads	Status	Product series	L (µH)	I_RP,40K (A)	I_SAT,10% (A)	I_SAT,30% (A)	R_DC (mΩ)	f_res (MHz)	Material	R_{DC max.} (mΩ)	Samples

IC manufacturers (99)

Texas Instruments TPA3251 | Demoboard SLAA701A

LC Filter Design

Overview

Description

More information

Products

PCN pending

PCN pending

PCN pending

PCN pending

PCN pending

PCN pending

PCN pending

PCN pending

PCN pending

PCN pending

Cart