AMC7150

Copyright

© 2006, ADDtek Corp.

DA011 － September 1, 2006

http://www.addmtek.com

1.3. Description:

【

1】 DC-IN: DC power jack. It is designed to provide convenience for demo. Simply one adapter is

needed for supplying the EVM board to light up the Power LEDs.

【

2】 D1: Reverse protection diode. It is located between input port of the EVM, V

the IC. The function is to provide protection when input source is reverse connected.

【

3】 J1: Lighting mode selection connector. Four lighting modes of the 2 LEDs can be

accomplished through jumper. The 2 LEDs can be connected in series or parallel, or either

of the 2 LEDs can be selected. The method of selecting one of these modes is shown in

the following table.

Table Method of using jumper to select 1 of the 4 lighting modes for the 2 LEDs.

Mode

Lighting condition of LED1 and LED2

J1

1

LED1&LED2 connected in serial

1

2

3

4

2

LED1&LED2 connected in parallel

1

2

3

4

3

LED1

1

2

3

4

4

LED2

1

2

3

4

【

4】 J2: Test point. It is reserved for current measurement to make sure that the LED driving

current matches the value calculated by the formula below (Please refer to the datasheet

for the calculated method of the average current):

sense

PK

R

mV

I

%

10

330

±

=

1.4. Reference PCB Layout:

Top Layer

Bottom Layer

Large PCB area is reserved for GND plane and is connected to the heat pad of AMC7150.

The GND plane can be a part of heat sink for AMC7150.

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