FAN5608

PRODUCT SPECIFICATION

REV. 1.0.3 6/28/04

9

The current feeding the string of LEDs is the sum of the cur-

rents programmed for each branch in digital or analog mode.

Using all four inputs in digital mode, the LED current can be

programmed within the 0 to 40 mA range, according to the

following table :

PCB Layout Consideration

The FAN5608 is available in both a single Die Attach Pad

(DAP) and a dual DAP package. In the single DAP package,

DAP is connected to GND. In the dual DAP package, one

is not necessary to provide any external connection to the

DAPs. Since the internal power dissipation is low, both the

3x3mm and 4x4mm MLP packages are capable of dissipat-

ing maximum power, without providing any PCB land pat-

tern. When viewing the bottom of the package of a single

DAP device, a single exposed metal island can be seen; when

viewing the bottom of the package of a dual DAP device,

two electrically isolated exposed metal islands can be seen.

0

000

0

1

000

5

0

010

5

0

100

10

0

001

10

1

010

10

1

001

15

0

110

15

0

101

20

1

100

20

0

011

20

1

110

25

1

011

25

1

101

30

0

111

30

1

111

40