12-Channels Pre-programmable Constant Current LED Driver

Version:A.006

Page 20

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DM621

Package Outline Dimension

DM621-QFN20

SYMBOL

DIMENSION IN MM

DIMENSION IN INCH

A

0.700

0.750

0.800

0.276

0.295

0.315

A1

0.000

0.020

0.050

0.000

0.020

0.020

A3

0.203 REF

0.080 REF

b

0.180

0.250

0.300

0.071

0.098

0.118

D

3.900

4.000

4.100

1.535

1.575

1.614

D2

1.900

2.000

2.100

0.748

0.787

0.827

E

3.900

4.000

4.100

1.535

1.575

1.614

E2

1.900

2.000

2.100

0.748

0.787

0.827

e

0.500 BSC

0.197 BSC

L

0.300

0.400

0.500

0.118

0.157

0.197

y

-

-

0.080

-

-

0.031