Evaluation Board Bill of Materials

Evaluation Board Gerber Plots

Reference

Value

Comment

U1

SC604A

Component references in bold are the only essential design components.

C1,C2,C3,C4

1.OµF

Bucket, input and output capacitors. Ceramic, low ESR type, 6.3V rating or higher.

C6

10µF

This extra capacitor supports usage of long power leads from benchtop supply.

D1,D2,D3,D4

-

Add LEDs to meet the requirements of the application.

J1, J2, J3, J4

-

Jumpers in series with each LED.

JP1,JP2,JP3,JP4

-

Jumpers to bypass each 1

Ω sense resistor and bypass J1, J2, J3 and J4.

JP5

-

Jumper for bypassing the R4 input resistor.

JP6

-

Enable jumper.

JP7

-

Connects RSET potentiometer. Remove this jumper when using a fixed value R1.

CTRL0,CTRL1,CTRL2

-

Jumpers provide High/Low settings for the control bits.

RSET

-

RSET resistor

3296W-105

Evaluation board has 1M

Ω potentiometer in place of R1.

R4

0.22

Ω

Series input resistor for studying effects of input resistance.

RADJ

16.5k

Ω

Resistor for analog brightness control. Apply test signal of 0 to 1.2V at VADJ test point.

J5

-

Banana jacks for power supply.

Top View

Bottom View

SC604A

16

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POWER MANAGEMENT