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STD TDA8954 power amplifier 420W
Profile：TDA8954 high power Class-D amplifier circuit with PCB 1X 420W mono bridge or 2x 210W
License: CC-BY-NC-SA 3.0
Description
Features TDA8954 high power Class-D amplifier 420W
Wide symmetrical supply voltage range
Single Ended (SE) or Bridge Tied Load (BTL) output configuration
Very high power capability
Low THD+N
Low noise
AC-coupled differential inputs
High efficiency
Selectable Thermal Fold Back and current limiting to avoid audio interruptions
Low power consumption in standby-mode
Fixed frequency
Diag functionality for Protections and Temperature (not for TDA8953TH)
English
https://xtronic.org/circuit/tda8954-power-class-d-amplifier-board-420w/
Portuguese
https://www.te1.com.br/2021/05/tda8954-amplificador-potencia-classe-d-420w/
Design Drawing
schematic diagram
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PCB
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| ID | Designator | Footprint | Quantity |
|---|---|---|---|
| 1 | C6,C7,C35,C36 | C5B5.5 | 4 |
| 2 | R6,R7,R19,R21 | R0805 | 4 |
| 3 | R11 | R0805 | 1 |
| 4 | C12,C13 | C0805 | 2 |
| 5 | R9,R10,R13,R14 | R1206 | 4 |
| 6 | C14 | C0805 | 1 |
| 7 | C16 | C0805 | 1 |
| 8 | C3,C4 | E5-13 | 2 |
| 9 | C5 | E3,5-8 | 1 |
| 10 | C17,C22,C18,C21,C19,C20 | C1206K | 6 |
| 11 | IC1 | SOT566-3 | 1 |
| 12 | C23,C24 | C0805 | 2 |
| 13 | L1,L2 | SFT1030 | 2 |
| 14 | C29,C30 | C5B5.5 | 2 |
| 15 | C31,C32 | C1206 | 2 |
| 16 | R16,R15 | R2512 | 2 |
| 17 | R1,R4,R20,R22 | R0805 | 4 |
| 18 | C27,C25,C26,C28 | C0805 | 4 |
| 19 | C10,C37 | C0805 | 2 |
| 20 | C1,C38 | C0805 | 2 |
| 21 | C33,C34 | C0805 | 2 |
| 22 | FB2,FB1 | BL01RN1A | 2 |
| 23 | C2,C15 | E2,5-6 | 2 |
| 24 | Q1 | SOT23 | 1 |
| 25 | R12,R25,R26,R28,R29 | R0805 | 5 |
| 26 | DZ1 | LL-34 | 1 |
| 27 | D3,D4,D5,D6 | DO-214AC | 4 |
| 28 | Q2,Q3 | SOT23-BEC | 2 |
| 29 | R27,R30 | R0805 | 2 |
| 30 | LED1 | LED3MM | 1 |
| 31 | LED2 | LED3MM | 1 |
| 32 | R31,R32 | R0805 | 2 |
| 33 | R33 | R0805 | 1 |
| 34 | R34 | R0805 | 1 |
| 35 | DZ2 | LL-34 | 1 |
| 36 | C39 | E2,5-6 | 1 |
| 37 | R2 | R0805 | 1 |
| 38 | SJ1 | SJ_2 | 1 |
| 39 | SJ2 | SJ_2 | 1 |
| 40 | S1 | SPDT | 1 |
| 41 | S2 | SPDT | 1 |
| 42 | S3 | SPDT | 1 |
| 43 | C8,C9 | C0805 | 2 |
| 44 | R3 | R0805 | 1 |
| 45 | H1,H2,H3,H4 | 2,8-PAD | 4 |
| 46 | J1 | 2-PIN-5.08MM | 1 |
| 47 | J2 | 2-PIN-5.08MM | 1 |
| 48 | J4 | 2-PIN-5.08MM | 1 |
| 49 | J5 | 2-PIN-5.08MM | 1 |
| 50 | J3 | 3-PIN-5.08MM | 1 |
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