Understanding U9 and U7 Components


what is u9 and u7

Table


DesignatorComponent Link
U9RVT1E471M1010 470UF 25V – This SMD part is an aluminum electrolytic capacitor rated at 470µF 25V.
U7RVT1A220M0405 22UF 10V – This SMD part is an aluminum electrolytic capacitor rated at 22µF 10V (U7 is paired with U8).
what resistor is r1

Table


DesignatorComponent Link
R10603 ±1% 5K1 – This is a chip resistor in the 0603 package with a nominal resistance of 5K1 (approximately 5.1 kΩ) and a tolerance of ±1%.
Main IC Selection
Add decoupling capacitors
Check missing components

U5
vmot
J7
LED1
J5
R2
Resistance
330 Ω
J4
J6
J8
U4
J3
vmot
3.3
J10
vmot
J9
Net1
C2
Capacitance
0.1uF
H4
H1
U2
3.3
3.3
3.3
U3
H2
H3
C1
Capacitance
0.1uF
3.3
3.3
3.3
3.3
3.3
U1
J2
U9
J1
U7
D1
U6
R1
U8

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