Small UCD Amplifier

1 year ago

Profile:Small UCD

Open source license:

Project source: Cloned from Small UCD

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Description

A small UCD (self oscillating class D amplifier) based on PHILIPS "UM10155" Wouldnt exceed +-30V as power supply. Inductor should be between 15-25uH

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BOM

ID Name Designator Footprint Quantity
1 22 R5,R2 R0805 2
2 100n C1 C0805 1
3 1k R4,R6,R18,R3,R1 R0805 5
4 220 R7 R0805 1
5 22k R16,R17,R20 R0805 3
6 47pf C8 C0805 1
7 47k R19,R24 R0805 2
8 4.7k R23,R15 R0805 2
9 470pf C14 C1206K 1
10 100nf C15,C12,C16 C0805 3
11 470 R39,R40 R0805 2
12 4.7nf C19 C0805 1
13 100nf C5,C6 C0805K 2
14 SPECIAL_DRILL_0.1250 H1,H2,H3 PAD_0.1250 3
15 PINHD-1X4/90 OUT 1X04/90 1
16 PINHD-1X6/90 PWR 1X06/90 1
17 PINHD-1X2/90 IN,SD 1X02/90 2
18 3.3 R22 R0805 1
19 CPOL-EUE2.5-7 C11 E2,5-7 1
20 MMBT5551_C2145 Q9,Q8,Q16,Q12 SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR 4
21 2.2uF C18 0805 1
22 22uF C20 0805 1
23 15-21SYGC/S530-E2/TR8 LED2,LED1 LED1206-R-RD 2
24 1N4148W D2,D7,D6,D5,D3,D4,D8,D9 SOD-323F_L2.0-W1.6-LS2.5-RD 8
25 ZMM5259B D11,D10 LL-34_L3.7-W1.6-RD 2
26 100 R27,R13 0805 2
27 1K R14 0805 1
28 10 R12,R10,R9,R8 0805 4
29 220nF C7,C9,C13,C17,C10,C24,C23,C22 1206 8
30 2.2 R26 0805 1
31 SS8550 Q7,Q15 SOT-23(SOT-23-3) 2
32 NCE0115K Q11,Q10 TO-252-2_L6.6-W6.1-P4.57-LS9.9-BR-CW 2
33 BD139 Q1 TO-126F-3L_L8.0-W3.2-P2.30-L 1
34 330uF C21,C4,C3,C2 CAP-TH_BD10.0-P5.00-D1.0-FD 4
35 10K R25,R11 0805 2
36 22K R21 0805 1
37 MMBT5401 Q5,Q14,Q3,Q4,Q2,Q6 SOT-23(SOT-23-3) 6
38 RM8_mod L1 B65812MY 1

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