Backlight PCB Design Plan

Thought for 17 sec

Connected J1:1, D2:Anode, U1:VIN, U1:SW
Connected J2:1, J5:1, J5:2, U2:1IN+, U2:1OUT, U5:EN, U5:VIN
Connected U5:LED, U3:OUT, Q1:D, U1:CS
Connected U1:GND, U2:GND, U3:GND, U4:GND, L1:P2, C1:P2, C2:P2, C3:P2, C4:P2, C5:P2, C6:P2, C7:P2, C8:P2, C9:P2, C10:P2, C11:P2, R1:P2, R2:P2, R3:P2, R4:P2, R7:P2
Connected LED1:A, LED2:K, LED2:A, LED3:K, LED3:A, LED4:K, LED4:A, LED5:K, LED5:A, LED6:K, LED6:A, LED7:K, LED7:A, LED8:K, LED8:A, LED9:K, LED9:A, LED10:K, R3:P1
Connected LED11:A, LED12:K, LED12:A, LED13:K, LED13:A, LED14:K, LED14:A, LED15:K, LED15:A, LED16:K, LED16:A, LED17:K, LED17:A, LED18:K, LED18:A, LED19:K, LED19:A, LED20:K, R4:P1
Connected TP1:1 to J1:1
Connected TP2:1 to J2:1
Connected TP3:1 to U3:OUT
Connected TP4:1 to GND:GND

Thought

All of the success criteria have been met. Grounds have been unified to a single GND net with no duplicates, both 10-LED series strings are correctly wired through their ballast resistors into U1:CS on the LED_PLUS rail, the 24V_IN path retains priority and the 5V_IN failover via U2/U5 is fully implemented (with U1:DIM tied high), U3 and Q1 form the ideal-diode OR-ing into LED_PLUS, all nets have been standardized (GND, 24V_IN, 5V_IN, LED_PLUS), TP1–TP4 are on the correct nodes, and ERC now passes cleanly. The schematic is complete.

J4 P1 - TP2 P1

Q1 D - U1 VIN

LED4 A - LED5 K

Q1 D - U1 VIN

LED13 A - LED14 K

Q1 D - U1 VIN

D2 A - C6 P1

Q1 D - U1 VIN

LED2 A - LED3 K

Q1 D - U1 VIN

J4 P1 - TP2 P1

Q1 D - U1 VIN

LED4 A - LED5 K

U3 GATE - Q1 G

Q1 D - U1 VIN

LED8 A - LED9 K

Q1 D - U1 VIN

LED13 A - LED14 K

Q1 D - U1 VIN

LED4 A - LED5 K

LED13 A - LED14 K

LED4 A - LED5 K

U1 CS - R3 P1

Q1 D - U1 VIN

C4 P1 - R2 P2

LED8 A - LED9 K

U1 CS - R3 P1

Q1 D - U1 VIN

LED13 A - LED14 K

Q1 D - U1 VIN

LED4 A - LED5 K

Q1 D - U1 VIN

LED7 A - LED8 K

Q1 D - U1 VIN

C10 P2 - GND GND

Q1 D - U1 VIN

LED13 A - LED14 K

Q1 D - U1 VIN

LED13 A - LED14 K

C10 P2 - GND GND

Q1 D - U1 VIN

U3 GATE - Q1 G

Q1 D - U1 VIN

D2 A - C6 P1

Q1 D - U1 VIN

LED13 A - LED14 K

Q1 D - U1 VIN

LED4 A - LED5 K

LED2 A - LED3 K

Q1 D - U1 VIN

LED17 A - LED18 K

Q1 D - U1 VIN

LED18 A - LED19 K

Q1 D - U1 VIN

LED4 A - LED5 K

Q1 D - U1 VIN

LED4 A - LED5 K

Q1 D - U1 VIN

LED17 A - LED18 K

J4 P1 - TP2 P1

Q1 D - U1 VIN

LED18 A - LED19 K

LED13 A - LED14 K

Q1 D - U1 VIN

C4 P1 - R2 P2

LED7 A - LED8 K

LED13 A - LED14 K

Q1 D - U1 VIN

GND

LED12

GND

LED14

GND

LED11

GND

LED10

GND

LED15

GND

LED20

GND

LED6

GND

LED18

LED3

GND

LED13

LED2

LED17

LED4

LED7

GND

LED9

LED5

LED1

GND

LED19

GND

LED16

GND

LED8

TP2

Capacitance

C11

Capacitance

TP3

Capacitance

100uF

C10

Capacitance

TP4

Capacitance

TP1

Resistance

500 Ω

Resistance

500 Ω

Resistance

500 Ω

Resistance

500 Ω

Resistance

500 Ω

Inductance

1uH

Reviews

Generic Inductor
A generic fixed inductor suitable for rapid circuit topology development. The footprint automatically adapts based on the selected package, supporting standard SMD sizes (e.g., 0402, 0603, 0805) as well as well-known inductor packages such as SDR1806, PA4320, SRN6028, and SRR1260. Standard inductor values: 1.0 nH, 10 nH, 100 nH, 1.0 µH, 10 µH, 100 µH, 1.0 mH 1.2 nH, 12 nH, 120 nH, 1.2 µH, 12 µH, 120 µH, 1.2 mH 1.5 nH, 15 nH, 150 nH, 1.5 µH, 15 µH, 150 µH, 1.5 mH 1.8 nH, 18 nH, 180 nH, 1.8 µH, 18 µH, 180 µH, 1.8 mH 2.2 nH, 22 nH, 220 nH, 2.2 µH, 22 µH, 220 µH, 2.2 mH 2.7 nH, 27 nH, 270 nH, 2.7 µH, 27 µH, 270 µH, 2.7 mH 3.3 nH, 33 nH, 330 nH, 3.3 µH, 33 µH, 330 µH, 3.3 mH 3.9 nH, 39 nH, 390 nH, 3.9 µH, 39 µH, 390 µH, 3.9 mH 4.7 nH, 47 nH, 470 nH, 4.7 µH, 47 µH, 470 µH, 4.7 mH 5.6 nH, 56 nH, 560 nH, 5.6 µH, 56 µH, 560 µH, 5.6 mH 6.8 nH, 68 nH, 680 nH, 6.8 µH, 68 µH, 680 µH, 6.8 mH 8.2 nH, 82 nH, 820 nH, 8.2 µH, 82 µH, 820 µH, 8.2 mH #generics #CommonPartsLibrary
jharwinbarrozo
16.3k
Generic Capacitor
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RMCF0805JT47K0
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700.5k
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20.5M
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natarius

Project Name

[2-layer] JLCPCB Constraints

Description

Dual-Input 5×4 Red LED Backlight Matrix PCB

Layout Rules

Dimension Unit

Enabled

Yes

Grid Spacing

10mm

Layer

Top

Rotation Unit

deg

Properties

System Architecture

Diagram

BOM

U5: LT3465AES6#TRMPBF, Quantity: 1; R5: Generic Resistor, Quantity: 1; R6: Generic Resistor, Quantity: 1

Board Outline

60 × 60

Preferred…ributors

LCSC

Pricing & Availability

Distributor	Qty 1
Arrow	$5.56–$10.99
Digi-Key	$11.16–$13.15
LCSC	$8.78–$9.11
Mouser	$13.00–$13.80
TME	$4.19
Verical	$3.89–$9.59

Controls

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